Phn 1: S dng Lightroom ( qun l v hu k) n gin v hiu quPhn 1: S dng Lightroom ( qun l v hu k) n gin v hiu qu

Giao lu vi cc bn nh, th tm hiu xem anh em xung quanh x l nh bng phn mm no, hu ht cc bc chi nh lu ni l Photoshop (PS). C l V PS c trc v n hon ton c th x l mi vn ca hnh nh ri nn nhiu ngi bit PS v qu quen s dng PS khng mun tm hiu v LR.Ra i sau Ps nhng Lr cng l ca Adobe nn ng nhin n tha hng c tt c nhng tinh hoa ca PS v ai bit v Ps th chuyn sang s dng Lr l khng tr ngi g v n n gin hn (Develop ca Lr ging Camera Raw ca Ps). Tuy nhin Lr l mt phn mm thng mi nn n c thit k rt hon chnh, khoa hc v pht trin ring ra mt hng p ng mt cch tt nht cc nhu cu ngy cng cao v hnh nh ca ngi dng. Tt nhin l v c PS vi y cc tnh nng cho mi nhu cu x l hnh nh ri (ng nhin l gi kh cao) nn Adobe ch cn pht trin Lr vi nhng tnh nng c bn v nhng tin ch mi, nhm ti nhu cu ca mt tng lp ngi dng vi mc gi hp l hn.Trc y bn thn cng ch bit c Photoshop (PS) nhng t khi bit Lr, s n gin khi s dng v hiu qu ca n nn chuyn sang kt hp s dng c 2 phn mm: Ligghtroom l phn mm chnh trong workflow gip qun l d liu v thc hin phn hu k c bn (correction), Photoshop dng lm su hn, k hn nu c nhu cu can thip vo ni dung bc nh (Edit, retouch v design.) v cc phn mm x l nh khc (nu cn).Thy trn din n thy nhiu bn mun tm hiu v s dng Lr (qua ti liu ting Vit) nn mnh chia s cht t kinh nghim v s trnh by theo cch trc quan, c th cc bc mi lm quen d thc hnh. Hy vng l hu ch vi ai c nhu cu. n gin, ch nu ra cc thao tc chnh, nhng iu cn lu theo th t b cc ca phn mm, cn i su vo cc chc nng khc cc bn t tm hiu, nu c tr ngi th trao i sau.Nu c g cha ng nh cc cao th gp gim.I. Ci t Lightroom:Hin nay trn Adobe.Com c bn Lightroom 4 (trial), bc no mun th th ln ti v (rt d dng, khng s giang h pha thuc c :D), th xong thy thch th c email cho mnh nh.Giao din ca Lr 4Khi ci t xong, m Lr ln, chng trnh s mc nh to New Catalog trong My Pictture, bn t tn cho Catalog v nn chuyn n vo mt th mc trong a khng phi l C trnh trng hp phi ci t li h iu hnh, d liu ca bn s b mt. Nu bn l ngi cn lm vic vi Lr nhng s dng trn nhiu my tnh th bn c th to Catalog (file/ New Catalog) hoc l (file/Export as Catalog) ang lm vo cng di ng d dng mang theo, lm vic bnh thng trn bt c my tnh no c ci t Lr v nn thng xuyn backup vo mt my tnh chnh phng bt trc (khi ng, chng trnh lun nhc bn).II. Chc nng qun l nh (Module Library)1. Import nh s dng Lr, vic import l bt buc. Import hnh nh t bt c ngun d liu no c kt ni vi my tnh k c trc tip t my nh ang kt ni vi my tnh, bn vo file/ Import photos,chn source, chn nh, chn ni lu tr ri nhn Import l xong.Trong mt catalog, 1 bc nh ch c th import 1 ln duy nht , Lr s cnh bo Already in Catalog (khi c nh trng lp trong Catalog).i vi file nh gc, trnh lu tr trng lp tn cng cn lu :Nu Import t ngun bn ngoi (th nh, USB) th c 2 la chn: chuyn qua DNG hoc gi nguyn format, lu vo mt ch (ty chn) trong my tnh v add thng tin vo catalog (copy as PNG, copy).Nu file nh c lu trong cng (k c cng di ng), ngoi 2 la chn trn, Lr cho thm 2 la chn na l Move (chuyn ti v tr mi), add (gi nguyn v tr) v add thng tin vo catalog.Ta nn chn Move hoc Add khng b trng. thun tin cho qun l, bn nn to cc Collection cho ph hp, sau ny tm kim d dng.v nhp ngay Keywords cho tng nh hoc collection sau ny d dng tm kim2. nh du nhSau khi Import vo Catalog, Lr cho php ngi dng phn loi hnh nh bng cch nh du hnh nh vo bt c lc no, ch cn nhp chut phi vo 1 nh hoc nhiu nh chn s c ngay nhiu cch nh du la chn.nh du theo Flag v Rejectednh du theo s saoHoc nh du theo muVic nh u ny gip ch cho vic phn loi tin cho vic qun l, x l v s dng nh. V d trong 1 collection nh ci , nh 3 sao cho nhng nh nh in kh 10x15, nh 4 sao cho nh mun in 13x18 hay 5 sao cho nhng nh cn x l k in ra kh ln.3. Library filter:Khi catalog ca bn phi qun l mt s lng ln hnh nh c chp nhiu thi im khc nhau vi nhiu loi my loi ng knh khc nhau.. (v d nh Lab lm hu k cho nhiu bc chp dch v ngoi cng vin chng hn), th vic s dng library filter s c mt ngha bt ng khi bn cn tm kim hay thng k phn loi hnh nh ca mnh. Mc ny mnh ch nu ra, bn no thch th khm ph tip nh.4. To WatermarksVo Edit/edit Watermarks.Nu dng ch:Nu dng hnh nh (logo): sau khi thit k logo, save nh dng PNG hnh nh c BG trong sut.5. Export nhnh sau khi chnh sa, phn loi xong trong LR ng nhin l cn phi c Export ra s dng cho nhng mc ch khc nhau.Gi s trong 1 collection mun Export nhng hnh nh du 3 sao i in kh 10x15, c c Watermark:Nhn Ctrl+A chn ht ri tip:Copy in 10x15 mang ra Lab l xong!Nu mun Export ra post ln VNphoto th:III. Chc nng chnh sa nh (Module Devolop)1. Chnh sa tng nh v hng lot nh:Devolop p ng hu ht cc nhu cu v chnh sa bc nh thng thng nh Crop, chnh nh sng, mu sc, blend mu, tng gim nt, kh nhiu.Ci ny ging Camera Raw trong PS nn bc no lm ri coi nh l v t nh, bc no mi lm quen th tm thi t vc, nu cn sau ny mnh lm demo trn mt bc chn dung hay phong cnh th c th hn .iu mun ni y hiu qu ca Lr khi chnh sa nh hng lot, ch cn cn chnh cc thng s trn 1 bc nh mu cho ng yu cu ri nhn + Presets v chn nhng thng s chnh sa cn a vo ri nhn Creater, sau chn tng nh hoc mt lot nh tng t nh nh lm mu ri nhn vo preset to l xong, ci ny mnh thy gip ch nhiu cho cc bc chp s kin (ci hi) s lng hnh nhiu, cn ra hnh ngay, ch cn bit set my nh chp ra tng i ng u (l c xu u cng khng sao), Preset 1 pht l ok, sau va kim tra va Crop li l xong.Ngoi kh nng chnh sa cc thng s k thut chung trn ton bc nh, Adobe khng ngng ci tin kh nng chnh sa ring cho tng vng nh, t 7 thng s chnh c kim sot trong vng chn bi Brusch v Gradurated Filter trong Lr3 th trong Lr4 tt c cc thng s c bn (12) c a vo iu chnh, gip ngi dng c th chnh sa mt bc nh lc chp ch mc bnh thng tr thnh mt bc nh ngh thut thc s !Trong Lr, vic iu chnh ch lm trn 1 lp duy nht nn vic iu chnh rt n gin v nhanh chng. Bn chn vng bng qut Brusch ri iu chnh cc thng s cho va (c th iu chnh trc khi qut). Cc thuc tnh nh Size, Feather, Flow v Density c th iu chnh c d dng nn c th to ra mt vng nh hng ca s iu chnh rt mt m, tinh t ; vic iu chnh Size ca Brusch c th bng phm cun trn con chut nn thao tc rt d dng. Vic b vng chn cng rt d dng, ch cn n Alt v qut Brusch ln vng chn l xong (khi phi lm Mask nh trong PS).B lc mu ca Lr cho php iu chnh ring 3 thuc tnh c bn ca 8 mu n sc gip iu chnh mu sc ca bc nh hi ha p mt, theo mun ngi chnh. Ci v m mu ny mu n l chuyn nh !Vi Chc nng Split Toning c th iu chnh v ha trn mu sc gia vng sng v vng ti ca bc nh tp nn cc hiu ng mu sc rt n tng, kt qu khng thua km g vic Blend mu phc tp trong PS v khng s b bt mu!Trn y ch nu ra mt vi tnh nng c bn ca Lr m bn thn hay s dng lm hu k, Lr cn rt nhiu tnh nng khc rt hay, cc bc c lm th s thy!2. Kt hp Lr vi cc phn mm x l nh khcLr l mt phn mm dng qun l v lm hu k c bn (chnh sa v nh sng v mu sc l chnh), nn cn edit hnh nh mc cao hn th chc chn phi cn n PS v nhng phn mm x l nh khc. Lr c th kt hp vi PS hoc phn mm x l nh khc rt d dng:Hay nhn chut phi vo hnh nh l c th chn edit trong PS hay mt phn mm x l nh c ci trn my tnhGi s chn PSNu chn mc th nht Ps s t ng m ra mt file nh mi c ui l TIFF hoc PSD (ty chn) p nhng kt qu c chnh sa bng LR. Sau khi edit xong bng Ps (hoc phn mm khc), ch cn ng file li th Lr s cp nht ngay file ny.3. File nh gc c gi nguyn vn khi x l trong Lr:Khi chnh sa trong Lr, file nh gc c gi nguyn vn, d liu chnh sa c lu trong 1 file khc c dung lng rt nh trong Catalog.History s th hin y cc bc chnh sa v c th tr li trng thi ca bt k bc no k t lc Import.Cc folder cha file nh gc cn c gi nguyn v tr trong my tnh lc Import trnh trng hp Lr khng tm thy trong ln x l tip sau.Mnh va mi vc my mn chi mi trong Lr4, rt l tuyt vi, s t t cp nht sau, bc u ta c lm quen cch mn n vi Lightroom t A-Z mt cch s lc .Qu x l n gin, Chc cc bc thnh cng.Cng rt mong qua topic ny c trao i kinh nghim vi vi ng o c cng quan tm v Lr v c cc cao th chia s thm nhng ng dng v nhng kinh nghim c th trong qu trnh s dng LR.

Phn 2: hu k nh vi LightroomMc ch gii thiu nhng tnh nng v qun l v x l (chnh sa) hnh nh ca Lightroom ti nhng ngi mi bt u nn trong phn 1 ch gii thiu nhng nt chnh v i thng vo vn l Lr gip c g cho ci th vui nh t ca chng ta v vic s dng Lr l rt d dng, n gin.Sau khi ra mt phn 1, nhn c s quan tm ca nhiu ngi, ng thi l nhng kin ngh mun c tm hiu su hn v kh nng x l hnh nh ca LR. p li s quan tm ca cc bn v vn ny cng nm trong d kin nn tranh th chia s thm cch hu k nh bng Lr, kt hp thm vi Photoshop v phn mm x l nh khc (nu mun). y c c th coi l v d minh ha cho nhng ni dung nu phn 1.Hu k i vi nh k thut sTrc khi bt tay vo vic hu k trong LR, thit ngh cng nn trao i vi kin c chung ci nhn v cng on hu k nh:T trc ti nay, lm hu k vn lun l mt cng on khng th thiu trong nhip nh. T lc ln tng, chp nh, n x l hu k lun c s gn b cht ch vi nhau cho ra bc nh c gi tr s dng tt nht, nh tin b ca k thut v cng ngh lm cho cng vic hu k trong thi nh k thut s thun li hn, d dng hn nhng cc yu cu c bn cng khng thay i my : Kim tra t tng th ti chi tit sn phm sau khi chp c quyt nh s dng tip; Chnh sa, khc phc cc hn ch, sai st t cng on chp nh lm cho cc sn phm hnh nh t yu cu v k thut (ng sng, ng mu..) nht l cng ging nh tht cng tt; khng sai st v ni dung (b cc cht ch, khng cn chi tit tha, phn cm.); S dng cc k xo l tng ha bi cnh, nhn vt trong nh, lm ni ch ca tc phm (lm tri xanh hn, da ngi mn mng hn), lm choph hp vi tng mc ch s dng (b cc li, Style mu sc); hu k c th ch l chuyn bnh thng ca ngi ny nhng li s l c hi sng tc ln th 2 ca ngi khc. Chun b cc iu kin cn thit pht hnh s dng (c th ch to Watermarks, n nh Size in n, a ln Web nhng cng c th l thit k Poster hay Album).Khi chic my nh cn n thun l cng c c kh, kt qu sau khi chp th hin ra trn phim nha hay giy nh th bao gm thnh qu ca qu trnh x l hu k trong Bung ti ri, ci cng vic trong Dark room thi ny khng phi ai cng c lm.Sang thi k thut s, t chic my compact i u cho ti chic DSRL khng by gi, bn trong n c c 1 chic my tnh (c my by gi c ti 2 chp CPU) v phn mm x l hnh nh ri (hi hichc l khng phi nguyn con photoshop CS6 !), khi bn la chn th loi nh nh chp hay thay i cc thng s hnh nh trn my nh th xem nh bn chn hay to thm 1 Preset trong phn mm x l nh, my s t ng p Presets ny vo nh trc khi Save vo th nh, c th coi y cng l 1 bc hu k v vy nh nguyn bn c chp t my nh k thut s ra th cng c 5, 7 ng nguyn bn.Cng ngh my tnh pht trin nh v bo, cc phn mm x l nh ngy cng gip ngi dng can thip su hn, nhanh hn, d dng hn vo hnh nh nn vic t hu k bng cc phn mm x l nh nhanh chng tr nn ph cp trong gii yu nhip nh. Chc khng phi l s ngu nhin khi Adobe t tn Lightroom cho mt phn mm x l nh.S cnh tranh nhau quyt lit gia cc nh SX my nh l c hi cc thng c chiu chung ti bn lun. Khng phi ngu nhin sau khi yn n chn nh dng JPEG lu nh vo th nh, my nh sau ny li c thm Raw. Khi chn Raw, hnh nh t sensor s c ghi thng vo th nh m khng qua x l trong my nh nn cc bn s cm thy thoi mi hn khi c tha h ko ln ko xung khi lm trn my tnh :DC hi thy c nh nguyn bn c l ch l lc c file Raw trn my tnh cn nu c xem trn my nh th hu nh a phn l b la tnh ri :D.Gi y vn cn khng t ngi coi vic hu k nh sau khi chp l vic ph, ty thch, thm ch cn cho rng hu k ch l cu cnh ca nhng ngi tay ngh chp nh cn yu. Th vui nh nguyn bn khng ch ca nhng ngi ch thich ng sau my nh ch khng thch ngi trc my tnh m cn l hoi nim ca nhng ai l c mt my nh t ci thi cun phim ch c 36 kiu, bm my ri coi nh l xong, phi n o lm trc mi ln bm my . Gi th ngi ta c th lp nhm yu thch nh nguyn bn chi nhng chc chng ai dm m 1 Studio dnh ring cho nhng khch hng yu thch nh nguyn bn!Trong mt dy chuyn, kt qu ca cng on trc s nh hng rt nhiu ti cng vic v kt qu ca cng on sau. Vi mt bc nh c chp tt, ng thi th cng on hu k rt nhe nhng v mun nng tm cho n cng rt d. D rng khi hu k c th khc phc c nhiu li khi chp nhng ng vo n chp cu th v y l cch d nht bn b i c hi c c nhng bc nh khin ngi xem phi trm tr. Ci phng chm th bt lm hn b st cng ch l bt c d trong trng hp bt kh khng thi, ch c bn th dn ri li mit mi xa th cng thy thng ci gng lt v ci th nh lm.Cng vic hu k c th coi nh cng vic hon thin cn nh xy, nu cn nh c xy cn thn theo mt thit k hon chnh th vic hon thin rt thun li khi xong n l ngi nh p.Nu lm ch c cng on hu k ngi chp s cm thy thoi mi, yn tm khi gp nhng tnh hung nh sng, mu sc hay BG phc tp (Chng s my nh khng nhn c nh sng ging mt mnh hay my ch bit nhn i bng mu xm. !) ch tp trung vo vic la chn gc my, sn bt cc khonh khc p, khi hu k bn s c cch lm cho bc hnh ging nh bn chng kin bng mt!. Cng on hu k s l tht bi khi cht lng hnh nh khng c ci thin m cn t hn so vi cha lm.Khc vi lc chp, khi hu k ta c th bnh tm phng to, thu nh, ngm ngha k bc hnh v thy r s khc bit gia ci nhn ca mt ngi v ng knh. S khc bit gia 2 ci nhn dn ti hai trng hp tri ngc: tm nh c nhng ng nt k th truyn cm nhng tnh mi l m lc ngm cnh ghi hnh khng thy c. Tri li nhng hnh nh lng ly ca cnh vt lm cho ta ngn ng n run c ngi lc ra nh li bin u mt!. Hu k chnh l lc lm ni ln nhng ng nt k th m ta mi pht hin, ng thi ti hin li cnh vt lng ly m ta chng kin.Vi s tin b ca cng ngh my tnh (c phn cng ln phn mm), hin nay ngoi nhng cng c h tr t ng rt hu hiu n cn cho ngi lm hu k ci cm gic ca ngi ha s cm cy c hon thin mt bc tranh c phc ha t bc nh chp bng chut v bn phm.Lightroom l mt cng c x l hnh nh, cng c c tinh xo th no vn ch l cng c nu khng nm trong tay ngi bit dng. Vn l ngi dng mun lm g v trnh s dng ca h ti u (cng ch vn vn my mn ca, bo, khoan c trong thng ngh th mc nhng trong tay ng ny th ra cc sn phm m ngh nhng cn ng khc th hihich lm chung g!).2 phn mm x l nh ca Adobe l Photoshop v Lightrom c s dng nhiu hu k nh sau khi chp. lm ch mt cch hiu qu cng on hu k nh nn kt hp s dng c 2 phn mm: Ligghtroom l phn mm chnh trong workflow gip qun l d liu v thc hin phn hu k c bn (correction), Photoshop dng lm su hn, k hn nu c nhu cu can thip vo ni dung bc nh (Edit, retouch v design.)Hu k c bn vi LrI/ Devolop(Cc chc nng v cng c chnh sa nh - tng t Camera Raw trong Photoshop)Giao din chnh ca Develop1. Cc Chc nng chnh sa nh trong Develop1.1. Histogram:Lr cho php biu th cc thng s v nh sng, sc ca bc nh ang duyt di dng th, trn Histogram bn c c s phn b mu v sc ca tm nh hin duyt. Mt bc nh chp ng sng s rt trong tro, ti tn, khi Histogram ca n cng tri kn t tri qua phi khung biu (nu nh sng hi ha th th s cn i vng gia nu chp High key hoc low key th th s lch v 1 pha ty tng trng hp).t bitHistogram ca Lr l mt giao din tng tc, c th chnh nh sng ca nh trc tip trn .Trn Histogram, ton di nhy nh sng (Dynamic Range) c chia thnh cc vng: Blacks, shadows, Exposure, Whiters v Highlights khi r chut trn th, vng sng c gi tr tng ng s sng ln. Mun iu chnh gi tr vng sng no ca nh, ta gi chut tri iu chnh (di di) vng th qua li (hiu nm na l ta di di vng nh sang vng khc ca Dynamic Range), ng thi theo di, cm nhn s bin i trn nh cho n khi thy va . C kh nhiu cch chnh sa v nh sng cho nh nhng y l mt cch lm rt hiu qu (c l ch c c Lr?).1.2. Chnh Basis (cc thng s c bn)a/ Chnh cn bng trng (WB): c c s cho cc bc cn chnh khc, ta thc hin Cn bng trng. Cn bng trng l mt qu trnh thay i mu sc ca ton b bc nh sao cho ng vi thc t nht, hay ni cch khc l chnh sa sao cho mu trng trn hnh ng chnh xc l mu trng m mt ngi cm nhn, t cc mu khc cng ng.Vi WB, Lr cho ta rt nhiu la chn (nu chp JPEG ch c 3 la chn: As shot, Auto v Custom), Thng th khi t trn my nh ch AWB ri th ta chn AS Shot ly theo kt qu t chnh ca my nh nhng bn nn th ht v cm nhn, nu mun ty chn th chnh Temp, Tint sao cho ra kt qu mong mun.C th nhn W ri ch dng c ly mu vo vng mu trung tnh trn nh (R=B=G), nn lm th c kinh nghim nhn din vng mu trung tnh; Nu chp vi graycard th sau khi chn vo s c ngay kt qu chnh xc, nhn W ct dng c ly mu i.Trong v d ny ta chn th Daylight.b/ Chnh sng:Ngoi sng trung bnh ca nh (Exposure), Lr cho php chnh ring r 4 mc sng khc (Blacks, shadows, Highlights v Whiters ), trong phn ny Lr h tr sn 1 ch t ng, khi click vo Auto, Lr s t ng chnh cc thng s cho bn, nu cha va bn iu chnh li.Giai on u mi lm, cha c kinh nghim trong vic thay i cc thng s, ta nn tn dng cc Presets m chng trnh c nh mt s gi t rt kinh nghim.Pha trn 2 bn Histogram c 2 tam gic nh, khi click vo s i thnh 2 hnh vung sng, khi ny h thng cnh bo ca Lr hot ng, nhng vng sng xut hin mu cho bit vng sng ny mt chi tit, bn cn gim Whiter (c th l c Highlight) xung cho ht mu ; Nhng vng ti xut hin mu xanh cho bit vng ti ny mt chi tit, bn cn tng Shadow ln cho ht mu xanh.Trong cc trng hp khc: nu bc nh m m nh ph 1 lp sng (pha bn u tri th c mt on c gi tr =0), bn gim Blacks xung; khi bc nh c v m u, mu trng ch xm xm (pha bn phi cui th c mt on c gi tr =0), bn cn chnh Whiters ln sao cho 2 u th va chm vo 2 mp khung biu .Trn y ch l nhng nt c bn, bn nn t tm hiu thm ngha ca cc thng s ri t iu chnh cc thng s cm nhn s thay i v chn cho mnh mt cch lm, mt trnh t ring.c/ Chnh Clarity:l chnh s r rng chi tit ca bc hnh, c th tng Clarity ln cho hnh phong cnh ni r chi tit nhng li phi gim bt Clarity vi nh chn dung khi mun lm cho ln da ngi mn mng, mm mi.d/ Chnh Vibrance v Saturation: thay i mc m nht mu sc trn bc hnh. Khi tng thng s Vibrance tc l chng ta ch tng s bo ha cho mu cn yu, cha bo ha. Khi tng Saturation l tng bo ha ca tt c cc mu. Thng ch nn chnh Vibrance ko nhng mu yu ln cho ng u. Khi chp Raw, bc nh thng rt nht mu, ta phi tng Vibrance v Saturation ln.1.3. Tone CurveCng nh trong PS, Tone Cuver Lr l chc nng iu chnh kt hp c nh sng v mu sc rt li hi: sng, tng phn trn ton b tm nh (Tonal Range), bao gm mt di gi tr th hin mc sng/ti, chy t im mu c gi tr ti nht ti im mu c gi tr sng nht ca tm nh , hoc trn mt phm vi (min) sc ; sng, tng phn trn tng khu vc ring ca tm nh, hoc trn mt phm vi (min) sc ca khu vc ; Chnh mu sc (nh l Color Balance) . vn dng ht cng nng ca Tone Cuver cn hiu r mt s khi nim v nh sng v mu sc, tm thi gii thiu s b v chc nng ny cng cc giao din s dng ca n dng th, dn s tm hiu k hn s dng hiu qu hn.Thng thng im mu c gi tr ti nht ca mi tm nh cha chc l mu en, v im mu c gi tr sng nht cha chc l mu trng; tuy nhin mt tm nh tt th im ti nht thng l mu en v im sng nht l mu trng. Khi tng phn cao th tm hnh tr nn r rng, trong tro, d nhn hn. Ngoi cch chnh nh sng phn Basis ta c th dng Curves gii quyt vn ny.Tng quan v gi tr gia ccvng Highlight, Light, Darks v Shadows bc nh ban u c biu din l 1 ng thng trn th:Lr cho php thay s tng quan bng cch un th thnh ng cong (Cuver) trn ton th hay tng on, to nn s thay i tng phn v sng khc nhau (trn ton bc nh hay gia cc vng phm vi sc hoc trong 1 vng phm vi sc ) mt cch du dng, mm mi hay t ngt gp khc. C th dng chut tri un cong trc tip tng on v cng c th dng cng c Stop directly adjrusting chnh trc tip ti vng sng c th trn nh.Trong Tone Cuver, Lr cho sn 3 la chn c mc tng phn khc nhau (linear, Medium Contrat v Strong Contrat) trong tng knh cho c 4 knh (RGB, R, G v B). vo iu chnh Cuver cho cc knh mu ta lm click chut vo biu tng gc phi, pha diNguyn tc chuyn mu trn tng knh nh sau:Knh Red: tng sng c mu , gim sng c mu Xanh ngc (Cyan)Knh Green: tng sng c mu Xanh l, gim sng c mu Tm (Magenta)Knh Blue: tng sng c mu Xanh dng, gim sng c mu vngng dng nguyn tc trn, Tone Cuver cn c th dng kh m sc trong nhiu trng hp khi chp b nh sng phn chiu vo ng knh gy lch sc thi mt mu no kh hiu qu;Ngc li, cng da vo nguyn tc trn ngi ta c th Blend thm mu bt k vo mt mu hay mt mt vng sc trn nh kh d dng.1.4. Chnh mu sc (HSL-Color- B&W)Lr cung cp cho ta tnh nng chnh mu sc ca bc hnh qua mt giao din kh n gin v trc quan, c th chnh ring r tng thuc tnh c bn (Hue, Saturation v luminance) ca 8 mu chnh sa hoc to ra mt b cc mu sc ty cho bc nh :HSL (Hue, Saturation, Luminance):HSL cho chnh ring tng thuc tnh Hue, Saturation v Luminance vi cc mu.Ngoi cch chnh thng s trn cc thanh trt, ta cn c th tng tc v mu sc ngay trn bc nh. Dng cng c Stop directly adjusting iu chnh trc tip cc thng s Hue, Saturation v Luminance ca mt vng mu c th trn nh (dng chut tri iu khin ln, xung). Vi cng c ny mu sc ca bc nh c ty chnh d dng theo cm nhn v gu mu sc ca ngi chnh.Color:Chnh cc thuc tnh ca ring tng mu, V d: chnh 3 thuc tnh ca OrangeB&WKhi iu chnh B&W Mix, ta c th iu chnh sng ca cc mu to tng phn (B&W) ty gia cc vng nh. C th chn Auto (pha di) Lr gip bn. phn chnh B&W, Lr cng cho ta tng tc trn chnh bc nh chnh sng trn tng vng c th ca bc nh (dng chut tri iu chnh cng c Adjust B&W ln, xung)1.5. Split Toning:y l tnh nng cho php thay i v ha trn Tone mu gia vng sng v vng ti ca bc nh, vi tnh nng ny c th to hiu ng (blend) mu sc rt hp dn cho bc nh. C th ln lt tng Saturation ri chnh Hue cho phn Highlinght v Shadow v chnh Balance cn bng gia 2 vng.1.6. DetailL tnh nng chnh nt v gim nhiu (noise) cho bc nh.sharpness:Lr cho iu chnh vi bin kh rng tng thuc tnh ca sharpness (Amount, Radius, Detail v Masking) kin sot sc nt ca bc nh, khi chnh c th dng cng c Adjust detail zom area ri click chut vo phng ln tng vng nh c th kim tra.Noise Reduction:Trong trng hp nh chp thiu sng phi chnh li cho ng sng hoc chp vi mc ISO cao thng b noise (nht l vng Shadow), tnh nng gim nhiu (noise) ca Lr t ra kh n tng, Lightroom gim noise bng cch gia tng "soft" (gim sharpen v contrast) cho vng nhiu v vy khi gim nhiu phi ngn nga mt nt, Lightroom c nhng bin php ring cho tng loi nhiu:Luminance Noise: (cn gi l Monochrome Noise hoc grayscale noise) l nhiu do ht nhiu en, trng v xm (khng c mu) ging nh nhng ht mui tiu lm chm. Khi tng mc gim Luminance Noise ta phi kt hp chnh Luminance Detail kim sot mc mt nt v chnh Luminance Contrast tng gim tng phn cho nhng ht mui tiu lm chm lm mt noise mt cch hp l.Color Noise: l nhng ht nhiu c mu, khi tng mc gim nhiu Color Noise ta phi chnh Color Detail ngn nga bt mu v mt nt .1.7. Lens correctionsy l tnh nng hiu chnh hnh nh cho cc trng hp nh chp b hin tng mo phi cnh, quang sai, hoc b ti 4 gc...do Lens gy ra.Profile la chn ny, trong trng hp chp bng cc Lens i mi c Lr cp nht th khi chn Profile, chng trnh s t ng hiu chnh theo lens c dng v cng c th iu chnh thm trong phn Amount theo .Chn Remove chromatic Aberration loi b hin tng quang saiManualTrng hp chp bng Lens c, MF, hoc cc Lens m Lr cha cp nht Profile, khi chn Manual, Lr s cung cp mt giao din hiu chnh li mt cch chi tit cc trng hp mo hnh hc, ti gc v vin mu do len gy ra.Trong hnh trn, nu chn Constrain Crop, khi crop, Lr s t loi b phn mo ra khi khun hnh.1.8. EffectsLr c tnh nng to hiu ng Vignetting, Grain lm cho bc hnh ca bn c thm s mi l1.9. Camera CalibrationCamera Calibration c th hiu l hiu chun cc thng s bc nh chp t camera ging vi cm nhn trc quan bng mt.Trong Lr 4, Process ca Camera Calibration cp nht 2012 (Current) v i vi file RAW c nhiu Profile la chn (cn JPEG ch mc dnh l Embedded), ngoi ra Camera Calibration cn cho php iu chnh trc tip cc thuc tnh Hue, Saturation ca 3 knh mu R,B,G c s (Primary) nn mc thay i mu sc cho bc nh rt ln.1.10. Navigator:Navigator cho bn cch duyt nh, phng to, Lr c sn mt s t l phng thng dng.1.11. Snapshot:Tng t nh Snapshot trong palette History ca Photoshop. Bn c th lu bao nhiu snapshot ty thch, lu cc chnh sa nhiu thi im.1.12. HistoryMt c im ca Lr l phn mm bin tp nh theo phng php"nondestructive edit" do khng lm thay i cu trc ca pixel trong file nh s hin hu.History nhng tinh chnh bn thc hin trong module DEVELOP u uc ghi li trong History ny, v bn c th quay li tng bc ghi li qu trnh chnh sa nh. a nh v trng thi ban u, bn c th click vo nt "Reset" hoc chn hng di cng trong History l Import.1.13. Collections:Khi bn mi khi ng Lightroom ln u s khng c tn mt th mc no c. Bn c th to ra nhiu b su tp (Collections), v mt nh c th nm nhiu b su tp khc nhau. thun tin cho vic qun l cng nh x l hng loi, khi Import hnh vo Lr cn to ngay cc Collections.Cch to Collections: chn nh /nhn (+) trn thanh Collections/ chn loi Collections/ t tn/ Nhn Create;Xa Collections: nhn (-) /Delete;Thm nh vo Collections ( to): Chn nh ri dng chut tri ko vo CollectionsQuick Collection:l mt tnh nng tin ch, cho php ngi dng chn nhanh cc nh chnh sa trong 1 phin lm vic. Bn ch cn g phm B a nh vo Quick Collection, g B ln na xa nh ny khi Quick Collection.B su tp ny chnh l th mc tm ca cc nh " x l ch tc v tip theo: in, gi mail, to trang web v.v..1.14. Chnh sa hng lot nh :Mt c im khc ca Lr l Chnh sa hng lot nh (Streamline photos edit).Lr khng ch cho php ta chnh sa nhng thng s trn tng bc nh m cn cho php p dng cc chnh sa cho hng lot bc nh khc. Sau khi chnh sa c mt bc nh ng (ng sng, ng mu, ng phi cnh), ta c th p dng kt qu chnh sa ny cho nhiu nh khc bng nhiu cch:a. Copy & Paste:cho php chuyn cc chnh sa t nh ny sang nh khc, hoc mt lot nh nu bn chn trc . Copy cc setting thc hin trn 1 nh ri Paste cho 1 hay nhiu nh khc ta Click vo nt "Copy" trn Panel bn tri, trong hp thoi "Copy Setting" chn thnh phn thng s m mnh mun copy, Click vo nt "Copy" trong hp thoi. Chn nh di "Filmstrip" v click vo nt "Paste" trn Panel bn tri.b. PresetsSau khi chn, chnh sa hon chnh mt bc nh ta chn (+) trn thanh Preset, khi ca s hin ra ta check chn cc Setting lm, mun a vo Preset, t tn cho Preset ri nhn Create. Trong Lr 4 cng c sn kh nhiu Presets cho bn.Mun chnh cc bc nh khc c tnh trng tng t ra kt qu nh bc chnh ta ch cn chn trong "Filmstrip" ri nhn vo Preset va to.c. Previous/Sync v ResetCc nt PREVIOUS/SYNC v RESET nm cui Panel bn phi. Nu bn chn nhiu hn mt nh trong "Filmstrip" bn di, ch SYNC s xut hin.Chn PREVIOUS khi bn mun p dng cc tinh chnh nh k trc cho nh ny.Chn SYNC khi bn mun p dng cho lot nh chn (Chn, chnh sa hon tt mt bc nh, sau chn tip nhng bc c tnh trng tng t trong "Filmstrip" bn di, click vo nt "Sync" (hoc "Auto Sync"), nhng bc c chn s c chnh sa nh bc chn u tin).Nhn RESET nu bn mun quay li cc ty chn mc nh.Trn y l cc tnh nng c trnh by theo ng trnh t sp xp ca Lr. Vi nhng tnh nng ny ta c th chnh sa cc thng s v nh sng, mu sctrn tng th ca mt bc nh v c th p dng cho hng lot bc nh khc. V gii thiu Lr vi nhng ngi mi lm quen vi Lr, hoc l ngi bt u tp x l hu k nn trnh by cc tnh nng ca Lr, nu ngha ca cc thng s v nu cch thc hin chnh sa trc quan, c th, nhm gip cho ngi c c ci nhn tng quan v kh nng chnh sa ca Lr; nhng thng s nu ra ch mang tnh minh ha cho bi vit, cha phi l nhng thng s ti u.Hy vng nhng ngi quan tm c th hiu, t lm ri tm hiu k hn rt kinh nghim v tm ra cho mnh cch lm cng cc thng s ph hp ty theo s cm nhn v s thch ring lm nn cc tc phm ngh thut ca ring mnh.y c th xem nh l giai on chnh sa s b trn tng th cho mt series nh, ni cho c u c ui th kh di nhng nm c ri th thc hin rt nhanh v kt qu ca n cng rt ng k nu l nh s kin, lu nim (v d nh vi vi trm bc nh chp tic ci chng hn, bn ch cn kim tra li ni dung, kt hp vi Crop b i phn tha l c th xut ra in c ri).Qua gia on ny, d ta cha dng n mt cng c chuyn su no nhng c mt Collection nh t tiu ch ng (ng sng, ng mu, ng phi cnh), kh ng u v c th s dng c. t c kt qu tt, ngoi k nng s dng phn mm th nhng kin thc c bn v nh sng, mu sc, phi cnh l iu khng th thiu ngi lm hu k (nh mt ngi thy thuc) c th tm ng bnh, cha ng cch v quan trng l xc nh c nhng bnh chung ca tng nhm p dng cch cha tp th cho hiu qu.Trong phn tip theo s trnh by cch dng cc cng c ca Lr thc hin vic chnh sa ring cho tng bc nh v tng vng c th ca mi bc nh nhng bc nh t tiu ch ng t n tiu ch p.Cm n s quan tm.

2. Cc cng c chnh sa nh ca Lr2.1 Trc ht cn ti thanh cha mt s cng c pha di bc nh, trong ny c kh nhiu mn (tin ch), d cc cng c ny khng trc tip to ra cc hiu ng trn bc nh nhng gip ta phng to, thu nh; so snh s thay i so vi bc nh ban u v Soft Froofing (gi lp kt qu in)., N khng ch gip cho cng vic thun tin m cn cho ta s hng th vi cng vic hn. Mi ngi nh tn dng nh.Trong phn trc ta dng chut m ca s gii thiu cc tnh nng l chnh, sang phn thc hnh cn tp thi quen s dng cc phm tt cho nhanh (phm tt trong Lr hu ht ging nh Ps nn lm chung c 2 khng tr ngi g).Khng nh Ps, Thanh cng c ca Lr ch c vn vn 5 mn. Ngoi 2 cng c Spot Removal v Red Eye Correction c v nh c mt cho th tc cn Crop Overlay(R), Graduated Filter v Adjustment Brush thc s l nhng ci inh ca Lr:2.2 B cc li vi Crop Overlay(R):Trong nhip nh, b cc ng vai tr quyt nh.Lc chp, ng trc khung cnh hu tnh, nhiu khi m mi tranh th chp khonh khc qu m b cc thiu cn nhc, lc hu k cn ct xn, sp xp cho ch v bi cnh cn xng, ngon mc, gi li hoc tn ln nhng phn p, ng thi gt c mi rm r, gy ri mt ngi xem.Nhn R hoc nhp chut vo biu tng chn cng c Crop 1 khung trng xut hin, ngoi t l ca khung Original ra Lr cn c sn nhiu khung hnh c t l khc nhau v cho t nhp thm (chng hn cn Crop theo t l 13x18 in), ta nhn Enter custom ri s liu vo, khi chn t l ta c th di chuyn, thay i kch thc v xoay crop li bc nh theo t l chn, nu chn Custom v m kha ra ta c thay i lun t l khung hnh ty . Nh Crop ta c th b cc li bc nh, ct b nhng phn tha hay chn nhng vng nh p d dng.Trong Crop, nhn O nhiu ln ta c cc khun thc chun b cc bc nh cho ng lut. thy c giao din crop nh ca Lr3 thi th ngi dng Ps phi i n Ps CS6.Mt v d: Ton b Collection ang lm c khung hnh t l 4x6, mun in ra khung hnh t l 13x18 bn ch cn Crop 13x18 trn mt bc, Ctrl+A (Chn tt c) ri nhn Sync. Tuy lnh Sync c th p c gc xoay v v tr khung Crop chung cho tt c nhng cn kim tra, di chuyn khung Crop chn vng hnh nh ph hp vi tng bc.2.3 Spot Removal (Q):Mc d cng c Clone v Heal xa cc chi tit nhng vic thao tc khng tin bng cng c tng ng ca Ps nn nu phi x l nhiu nn chuyn qua Ps d kt hp cc cng c khc trong nhm.2.4 Red Eye Correction : kh hin tng mt . S c mt ca cng c ny ny xem ra cho b, phng x l cc trng hp chp bng my nh Compact, in thoi ch chp bng my DSRL cho ra mt cng hi kh: D2.5 Hu k nh phong cnh vi Graduated Filter (M)y l mt cng c v cng li hai khi hu k nh, hiu ng chuyn dn dn (Graduated) trong Ps ch yu p dng cho mu sc cn trong Lr (c bit Lr4) c p dng vi tt c thng c bn ca hnh nh, gip gii quyt cc trng hp c s chnh lch (cc thng s) kh nhiu gia cc pha ca bc nh. Vi bc nh di y bn ch cn trong vng 3 nt nhc l cc vn c gii quyt n tha:D .Trn hnh nh v c trn Histogram ta thy vng shadows b thiu trm trng, ta chnh phn Basis s c kt qu nh sauTuy nhin cng cha c n tng lm, ta s dng Graduated. Graduated ln th nht ta c bu tri cao xanh trong:Mt Graduated na ta c nng vng ri di chn :Dy l s so snhTt nhin l ta cn c th dng thm Brush nhn nh thm vao 1 s ch trong bc nh cho thch mt hn , ba sau s gii thiu tip cng c Brush, gi e kt cng vic ri :))2.6 Retouch Portrait vi BrushHy vng phn ny s gip cc bn c nim say m nhip nh d l mi chi, b gear ch mc tm tm tr li nhng nu nm c k tht chp c bn v vi phn mm Lr vn c th yn tm, t tin chia s nhng tc phm chn dung ca mnh.nh retouch c th l jpeg hay raw. y l bc nh lc mi Import:Sau khi cn bng trng, chnh ng sng, nu chp Raw th chuyn Profle trong camera calibration v camera portrait, kh nhiu (c th c chnh hng lot cho c collection) nh trnh by phn trc, by gi l lc thc hin nhng chnh sa cho tng bc chn dung ring l:Crop li mt cht cho b cc cht hn (trng hp ny c l khng crop p hn :D)Bm M, dng Graduted Filter l ni bt hng sng chnh, chnh ratio cho ph hp.C th t ngi ch vic ny nhng y li l vn cn lu i vi chn dung nh.Bm K, dng brush (y l cng c ch yu cho nh chn dung),vi Graduted Filter v brush ngoi cch chnh ngay bng cch di chuyn cc thanh trt, c th vo menu ca Effect s dng v to ra b ngh ring ca mnh, cc gi tr a ra mang tnh cht minh ha, mi ngi t to theo cm nhn ring:Lm mn da(y l vn vn nhiu ngi rt quan tm v ln tn vi 1 ng Plug-ins, thc ra th y li l chuyn nh :D):To brush (Clarity -100, Shapness > 40), qut nn cc phn da (e dng brush ln t khp ngi ri nhn Atl+ qut Brush vo phn khng phi l da nh qun o, mt mi, mt l do e khoi chp mu bo v mi trng l lm da sng lun:D)Nu cn thn hn c th p dng nhiu loi Brush (thay i gi tr Clarity, Sharpness) cho tng vng da, nhiu ln Brush trn mt vng da cho ra kt qu c khc bit chi tit, bo tn nhng nt p t nhin ca ln da nht l nhng vng da nhy cm; c th tng noise nu c noise do chp as yu vi ISO cao.Nhn Save Current setting, lu vi tn Mn da s dng sau ny.Xa so, mn:Sau khi lm mn da, cc vt nhn, so gim thiu, ta c th dng Spot removal xa, nu nhiu hoc phc tp th nn li sau, chuyn qua Ps kt hp lm Liquify hoc lm khung lunRetouch mi:To brush T moi c cc gi tri: Exposure 0,5, Saturation = 40, thm t color (H=340; S=12%) t ln phn mi. Nu k hn nn th chnh Brush c contrast =-40, Highlights = 20 t vo phn sng to s cng mng cho mi v brush c contrat =30, Saturation = 20 k ng vin mi, m bo l mu s c mt i mi rt gi cm:DRetouch mt:nn to 2 brush lm mtBrush (Contrat = 20, Shadows =20, Clarity =15, sharpness=15) k chn my , vin mi mt;Brush (contrat =-25, shadows =20 v highlights= 15 lm sng (long lanh) trng en trong mt.Lm m hng, Burn, dodge to s khi cho khun mt, thn th:sau khi Retouch da, mt v mi nn dng brush (exposure=0,5, saturation= 30 , c t mu (ty thch) v chnh Flow 60% t nh ln g m; dng Brush Burn (Exposure=-0,3) ph thm vo phn Shadows; brush Dodge (Exposure=0,25) im thm vo sng mi, phn sng trn mt tng thm hiu ng khiHiu chnh li thng s ca cc Brush, Graduted lm: y l bc ng dng cc tnh nng edit Graduted, brush rt hu ch ca Lr ng hiu chnh cc thng s ton b cc Graduted, brush thc hin to nn s hi ha trn bc nh.ln lt bm K, M, cc hnh trn trng hin ln, mi hnh trn nh du mt Graduted, hay brush p dng, click chut vo n, bng thng s brush hin ra, ta nn tinh chnh li cc thng s cho tng th c s hi ha nht.Vi nhu cu bnh thng, phn Retouch trn Lr coi xong, ta c th bm Ctrl +E lm tip mt s retouch na trn Ps hoc Color efex nu thy cn.Vi Lr4 th kh nng retouch kh hon chnh k c Blend mu, nu c qua Ps cng ch cn dng thm Liquify (chnh hnh dng), Patch Tool (xa chi tit tha) v lm khung hay Album design na thi.Nh vy ch cn trong khong thi gian vi t pht, kt qu thu c ngoi vic chnh xong 1 bc nh ta cn to c mt b Brush nhng ln sau ch cn vi nt nhc l ta Retouch xong 1 bc chn dung, qu n gin phi khng cc bn :D.Nu mun chuyn qua BW th bm chn B&W trong mc HSL/Color/B&W ri chnh Black& White Mix bc nh c tng phn B/W tt nht.Nu mun c Sepia tone th dng thm Split Toning:mun Split Tone th ko i hue ca shadows i mt t:Mun Blend mu th tr li HSL/ color/W&B chuyn li color v s dng tone cuver hay cc mc thuc nhm mu sc chnh (ty theo nhu cu mun thay i mu u). Nu mun Style mt cht (gi s y ch n gin l mun lm ni i mi ca mu), ta ch cn gim temp chung cho n lnh i mt cht ri v channel Blue chn c nh vng highlight (phn sng ca mi v da) ri p thm mt cht blue cho vng Shadows l xong thi.Vi khon mu sc th Lr cng c mn chi tha sc vui v hoa l cnh. D rng ch c mt layer v khng c c t mode blend nh Ps nhng nu c mt cht c bn v mu sc th ch cn vi ba ln ko ln ko xung l cng ra ., tt nhin t y mun c ci sng cao hn th nn qua Ps cho ci qu trnh "xo nu" n lu hn, bc no thch "thng thc" th c do u vi Lr ri ln nh vi Ps cn mun nhanh gn th c t A ti Z vi Lr cng c, Hi hi.Nh vy cui cng th vn cn li l ty thuc vo tng v con mt thm m ca ngi lm hu k thi nh, trn giy trng mc en, e chia s vi mc chi tit c th, nu bc no mun chi tit hn th mang latop off cfe vi e nh.Chc cc bc c nhiu bc nh p.

H h... e mi c cm ca bc l e bit b ri, bi v ci v mu m ny bit th n rt d cn nu lm i kiu hn xui th xc xut thng l khng cao u tr khi l lm th chi, n mun ra g cng c, thy thch th dng li !, e ngh l c nhiu ngi lm ging bc, d nu c Temp, tint th cha chc dng v d b cho l ci ny cn bng trng v mun n ra mu cam th t mu cam (ch ng khi t vo ch trng), t 1 ln ko c th lm nhiu ln...Thy bc quan tm tm hiu cch i mu c ch , c nh ng dng thm v gii thch r trng hp ny e nhc li my th ny, hy vng n hu ch cho nh ca bc v nhng ai cng quan tm:Trc nht khi chnh mu nn nh ci bnh xe mu, nhm mt li l thy n n hin ra trc mt mi c.Trong lnh vc ha, truyn thng in t ngi ta dng h thng mu RGB, tc l dng 3 ngun mu c s l R, G v B to ra tt c cc mu cn li.Trong Lr, ngi ta dng 4 knh tn hiu (RGB), R, G v B kim sot vic iu chnh as v mu sc bc nh; v mt mu sc tt c cc giao din m h cung cp u s dng 4 knh ny iu chnh 3 thuc tnh c bn ca mu sc:hue (tn gi mt mu c th, mt v tr c th trn bnh xe mu) v d nh , vng, xanh;Luminace: l sng hay ti ca mt mu;saturation: c gi l bo ha, hay l vic o s khc bit ca mt mu nh th no so vi mu xm. N c xem nh l tinh khit ca mt muKhi kt hp trong h thng 3 chiu, cc thuc tnh ny s xut hin nh khi mu, vic iu chnh cc gi tr ca chng s dn ti s thay i mu hay sc thi, sc ca mu nh di y:Khi di chuyn quanh bnh xe mu ta s c nhng mu (hue) khc nhau. ngi ta thay i t l ha trn ca 3 knh R, G v B ra cc hue.Mu sc cng gn nht trung tm hoc cc cc cng kh phn bit. Mu sc c cng bo ha nhng c sng ti khc nhau c sc thi (tints) khc nhau nh Tint, tone, Shade.Nu hiu cc c s trn cc bc s hiu ngha ca cc thng s v mu sc trn Lr, cn c vo cc c s trn m ta a ra cch lm cho trng hp a ra:mun i ring mu tm ca hoa thnh mu cam, trc tin s ngh n vic chnh Hue ca Purple, chc chn l khng c v 2 mu ny cch nhau gn na vng tri t (trn bnh xe mu) nn ngoi kh nng iu chnh ca n, ch cn cch iu chnh local bng brush thi.Mu tm to bi R v B, nm vng lnh cn mu cam to bi R v G, nm vng nng nn phi tm cch lm nng v i B thnh G (tng temp ti a, chnh tint xung v chn color l G); Chnh Saturation lm thay i bo ha ca mu trong vng p dng ca brush cho va .n gin ch vy thi.

H h. E cn n cc bc phn chi tit ca tone cuver (nu bc no dng Tone cuver bn Ps ri th v t), theo ngh ca nhiu bc c trn topic v qua email, sn nhc li mt s khi nim v mu sc trn, e i su mt cht v Tone cuver:Ni n Tone cuver, ngoi ci tn ni nn s mm do ca giao din ny, mt c im khc l cng dng a nng ca n. Mi knh (RGB), R, G v B c biu din di dng th:Ton b Tonal Range (Phm vi sc ) ca mt tm nh, bao gm mt di gi tr th hin mc sng/ti, chy t im mu c gi tr ti nht ti im mu c gi tr sng nht ca tm nh (khi cha chnh) c th hin l mt ng thng (linear) gi tr (y) t 0 n 100 tri sut trn trc ta (X) l ton b Dynamic Range (di nhy sng) c ngm chia thnh nhiu vng sc White, Highlights, Exposue, Shadows v Black. Khi iu chnh, ng thng ban u ny s b un thnh 1 ng cong(cuver) hay nhiu on cong phc tp ty theo s im iu chnh.Tone Cuver cho php 14 im iu chnh (khng k 2 im u cui) nn kh nng iu chnh rt chi tit, ti im iu chnh Lr hin th cho bit gi tr ban u/ gi tr iu chnh. Ta c th xc nh chnh xc im iu chnh bng cch chm Adjust Point cuver vo vng nh mun chnh, Lr s hin th im iu chnh trn th.Trng hp mun cuver trong 1 phm vi hp ta nh du 2 im (khng chnh) 2 bn khi iu chnh im gia s khng cuver qua c, iu ny gip kim sot c s iu chnh AS v mu vi bin rt ln trong mt phm vi sc nht nh, khng nh hng qua vng ln cn, to ra s tng phn rt cao phc v cho ngh thut khi cn.V phng din nh sng:Vic iu chnh knh (RGB) c tc dng chnh sa v mt nh sng (nht l trong cc trng hp nh chp trong mi trng nh sng phc tp); iu chnh tng phn ca hnh nh. Ta c thay th vic iu chnh v as phn basic bng cuver trn knh (RGB) mt cch rt mm do, uyn chuyn v chi tit hn. Hy s dng th mt s dng Cuver ch S thun, ch S ngc, hay C thun, C ngc. cm nhn hiu qu ca n, c bit l i vi file nh Raw.V phng din mu sc:Trong k thut pha mu, ngoi vic chn mt hue c th hay pha trn vi mu khc ta cn quan tm vic pha trn mu vi mu trng/ en. Ta xem 1 v d v mt s sc thi ca mu xanh khi c pha:Khi cuver trn knh (RGB) cn c gi l knh trng/en v c to bi s ha trn ca 3 knh mu (R=G=B), vic iu chnh s tc ng ng thi ln c 3 knh mu c s, nh vy l ta iu chnh thuc tnh luminace ca cc mu trong vng iu chnh ca cuver, ni tm tt l ta c th to ra cc sc thi Tint- Tone- Shade bng cch iu chnh knh (RGB).Nu Cuver trn tng knh R, G v B th ch tc ng ring r tng knh, qui lut bin i ca n. Lr mc nh knh (RGB), mun chuyn qua cc knh khc phi click vo nt pha di (bn phi).Knh Red: tng sng c mu , gim sng c mu Xanh ngcKnh Green: tng sng c mu Xanh l, gim sng c mu TmKnh Blue: tng sng c mu Xanh dng, gim sng c mu vng.iu ny c ngha Tone cuver c th ng vai tr nh Color Balance ca bn Ps . chnh mu th vi cuver trn tng knh mu ring r ta c th thay i mu sc trn tng vng sc ty thch, nh vy cng c ngha l Tone Cuver c th thay th Split Toning c.Tm li, nu kim sot c Tone cuver v cc giao din chnh mu trong Lr cc bc c th i trng, thay en hay i mu cho tng vng mu, vng nh kh d dng cn mun thay hnh i dng th mi phi qua Ps thi. Tt c cn li ch ty thuc vo v trnh ca ngi chnh thi.

Cm n bn quan tm, Ring v khon chnh sa nh sng v mu sc cho nh th ch cn Lr l tuyt ri, chu vc th c nhiu tr lm, khng bit bn mun lm ra kiu g gp . E hi ny khng thch Blend lm, ch thch mu Lo ra mu thui :DNu bn thch Blend mu th c dng Lr chnh cho chun ri dng thm Color Efex Pro na l xong, trong Lr4 cng c sn kh nhiu Presets. mnh ang dng Color Efex Pro 4.

Vng, Lr dng cho gii chuyn nghip nn mc tin dng ca n theo e l rt tuyt vi. Cp i PS v LR l s phi hp v b sung cho nhau rt hon ho.E cng mi th Lr4, cng ty theo nhu cu m s quan tm n ci mi ca n khc nhau, Vi e th vic kim sot thm 5 thng s ca hnh nh trong cng c Brusch l rt c ngha v vic chuyn hnh nh t Lr qua Email l mt tin ch cn vic thm 2 Module (Map, Book) e cha c nhu cu nn cng khng quan tm lm.Khng Ch Lr hay PS m phn mm x l ha no cng vy cng nhiu RAM cng tt v cn thm card mn hnh ha na, ni chung l tn thc la lm:)))

Cho cc bc, cho bc quangnhan.Cm n s quan tm ca cc bc. Sau khi chia s v Lr trn topic, e cng c nhn nhng kin ca nhiu bc qua email, trong c kin tng t nh kin bc nu nn e mn php tr li chung cc bc t chn cch x l thch hp (e mi i lm v c thy bc trng nn tr li lun:)).Cng nh bt k lnh vc no, mun qun l th cng vic u tin l phi nhp d liu to h s ring ca i tng cn qun l.Khi Import, Lr s dng ngay metadata ca bc nh (hiu nm na n l d liu v d liu) c my nh to ra mi khi chp. Trong metadata, c hai nh dng JPEG v RAW u c phn EXIF (Exchangeable Image Format) cha nhng thng tin v thao tc chp nh nh kiu my nh, s sri ca my, tc , khu , tiu c, ch flash... v Lr cn cho ngi dng nhp thm mt s thng tin khc c lin quan ca bc nh metadata vo d b qun l hn. s dng Lr, vic import l bt buc.Trong mt catalog, 1 bc nh ch c th import 1 ln duy nht , Lr s cnh bo Already in Catalog (khi c nh trng lp trong Catalog).i vi file nh gc, trnh lu tr trng lp tn cng cn lu :Nu Import t ngun bn ngoi (th nh, USB) th c 2 la chn: chuyn qua DNG hoc gi nguyn format, lu vo mt ch (ty chn) trong my tnh v add thng tin vo catalog (copy as PNG, copy).Nu file nh c lu trong cng (k c cng di ng), ngoi 2 la chn trn, Lr cho thm 2 la chn na l Move (chuyn ti v tr mi), add (gi nguyn v tr) v add thng tin vo catalog.Ta nn chn Move hoc Add khng b trng.Trong qu trnh lm vic, cc file nh gc phi c gi yn v tr, nu thay iLr khng x l c s cnh bo Missing files (gm cc nh gc mt lin kt, khng tn ti), bn bnh tnh tr qua Library, dng chut tri bm vo k hiu photo is missing ch v tr n mi di ti hoc a n tr v v tr c theo ng dn.Lr l phn mm bin tp nh theo phng php"nondestructive edit" do khng lm thay i cu trc ca pixel trong file nh s hin hu. Trong qu trnh x l chnh sa nh, Lr ch gi lp cho ta thy kt qu iu chnh trn bc nh gc, trong History ghi li ni dung cc tc v m Lr thc hin cng cc gi tr (gi tr iu chnh thng s, ta v tr p dng), cc d liu ny c ghi vo Profile ca n trong catalog. Ch khi no export hoc edit cc chng trnh xl khc th n mi p cc thay i vo file nh gc ri xut ra theo nh dng mi chn.nh c qun l trong catalog khi xut ra edit c th hiu n gin l Lr m dm file phn mm khc; khi lm xong , ng file li n li t ng Import li v History bt u ghi li qu trnh mi.Trc khi xut ra edit, Lr c a ra 3 la chnCn cn nhc cc la chn ny cng nh thi im xut ra edit phn mm khc cho ph hp va bo tn c nh gc, va c th x l thun li c bc nh va li va tit kim c cng. V d chn mc trn cng th Lr s xut ra 1 file nh mi (cng tn, c thm ci ui .edit) c p cc chnh sa bng Lr ri; sau khi sa trn Ps xong ng li n s cp nht ngay vo Lr, trng hp mun tip tc sa na trn Ps th ta m file trc tip bng Ps v khi ng li bn Lr cng cp nht lun cc chnh sa mi, nu lu bng PSD th ta vn lm vic vi y cc lp nh thng. Nh vy ta c 2 file nh , c 2 history cho 2 giai on nhng phi chu tn cng thm mt cht :D

c gi biNaanB

Thi e nh chu vy.. Thanks bc nhit tnh chia s , tin th e hi bc lun l bc c bt v module WEB ca LR ko?? Bc c th vit 1 bi chia s v phn c ko ah?? E thc mc v vn a nh ln WEB qa ci module . Thanks bc nhiu v chc bc sc khe..))

Cm n quan tm ca bc.S dng Module WEB cng n gin thi, y c cc cng c cn thit to cc trang web nh, c th save ti my ca mnh hoc upload ln server.Sau khi chnh sa hon chnh, a nhng hnh c chn vo cc collection.Vi mi Collection c th to ring mt kiu trang: chn 1 kiu trong Layout Style, chn 1 mu trong Template,Sa li cc ni dung trong Site Info, Trong Idenlity Plate c th chn l logo ca mnh (edit ging nh trong Watemarks).La chn mu cho cc thnh phn trong trang (Click chut vo khung ch nht ri chn trn bng mu);Ni chung l c th thay i cc la chn trn Panel bn phi ty thch., cc bc c vic voc cho mau ht ngy di!E lm cng mt ci cho vui.Nu thy thch th:Nhn (+) Preset c th p dng cho cc Collections khc.Nhn Export (pha di Panel bn phi) xut vo mt ni trong my tnh ca bn ri Share trn Network.Nhn Upload a vo website (ring) trn Server (khi phi thay i cc FTP server settings cho ph hp)Hy vng phn chia s ny gip cc bc c th chia s nhng hnh nh ca mnh theo mt giao din Web kh l Pro

c gi bithechinhcdt

Em thy hi v l khi trn Histogram LR sp xp Exposure l phn midtone ca nh, trong khi phn Help th li gii thch l tng ng vi tng Exposure trn my, tc l dch chuyn ton b Histogram.Cm n bc. Em vn cha phn bit c s khc nhau ca 2 cng c, th d em mun gim sng vng sng cho bc nh du mt hn th em chnh trong Highlights/Whites trn basic panel th c tng ng vi ko curve vng Lights/Highlights khng?V cn cu hi u tin ca em:0.Em mi down v xi th LR4 th thy chc nng kh vin tm Lens Correction nay ch cn li 1 du tch ON/OFF v hu nh khng c tc dng. C bc no gp trng hp nh em khng , hay do em ang xi bn trial nn n vy??

Vi kin ca bc th e thy nh th ny :Cch gii thch trong phn hng dn v thc t khng c g mu thun c v khi thay i Exposure trn my nh tc l ta thay i gi tr phi sng (ci ny s lien quan ti khu , tc v ISO ) lm thay i sng chung ca bc nh, cn trong Lr, Exposure l tn ch vng c gi tr trung bnh (nm trung tm v c phm vi rng nht trong di nhy nh sng (Dynamic Range); Khi chp mt khung hnh c nh sng hi ha v o sng ton khung th phn ln Histogram ca bc nh nm phn ny ln khi thay i n th sng chung ca c nh s thay i nhiu.S khc nhau gia cch chnh sng trong phn Basis v Tone Cuver, v nguyn tc th ging nhau, ch khc nhau cch lm. Trong Basis th phm vi chnh tng vng rng hn , s nh hng qua nhau nhiu trong khi Tone Cuver th c th chia vng nh hn (ti 14 im iu chnh), linh hot hn, kim sot c mc nh hng gia 2 vng k nhau nn tc dng ca n mnh hn rt nhiu. c bit trong Tone Cuver khng ch chnh c 1 knh (RGB) m cn chnh ring cho tng knh R, G v B nn c th ch chnh mu sc, pha trn mu rt linh hot.Gi s nh adobe bn Lr theo gi tng chc nng, nu khng c tin e ch mua ring phn Tone Cuver l :D.E khng thch chnh tm lum, mt cng lm, trc khi lm e xc nh mun lm j, cn thay i ch no ri e ch chnh ch thi.E thy bn trial ca Adobe pht hnh l bn y ri, ch khc l cho dng trong thi gian gii hn thi.Trong Lens Correction, nu Profile th Lr s chnh theo Profile ca Lens nu chn Enable cn Manual th c ty chnh th m.

Cm n s quan tm ca mi ngi. V ch ch vit by ny nhm chia vi cc bn mi s dng nn mnh c gng trnh by c th v trc quan d t thc hnh. trong qu trnh lm vic vi Lr nu cc bn c tr ngi hay pht hin thm nhng tnh nng hay ca n xin chia s chung vi mi ngi trn Topic cng nhau hc tp. Nhn y xin b sung thm mt s iu v Brush:Size ca Brush iu chnh c bng roll ca chut (rt tin).Khi mun xa bt 1 phn Brush qut c th chn Erase hoc nhn Altt ri chnh Feather, flow..., qut ln phn Brush ny qut.Cc thng s trong Brush sau khi p dng trn nh ri vn c th iu chnh li c (tng t vi c Graduated). Khi nhn K hoc biu tng brush cc du trn trng hin ln cho bit cc brush p dng trn nh, click chut vo du trn no th vng p dng ( mu ) sng ln, bng thng s ca Brush chuyn sang trng thi edit (sng ln), ta c th chnh li cc thng s hoc xa bt 1 phn ca Brush.Brush rt hu dng khi hu k nh chn dung:Trong Effect ca n Lr to sn mt s brush chuyn lm mn da, trng rng , t mi..., c th t to thm cc Brush ring ca mnh (t chn my, lm trng en mt...): Sau khi chn cc thng s cho Brush nhn chn Save current settings as..., ri t tn cho brush.Trong Lr4, Brush c chnh c Noise, rt tt khi lm gim noise cc b mt s vng (ti) m khng phi gim noise chung lm gim nt ca c bc nh.

Cc cng c trong LR 4 (tip theo)Brush AdjustmentLR dng Brush adjustment tc ng 1 khu vc c th ca nh.p dng mt Brush adjustment hoc Gradient adjustment1 chn Brush adjustment hoc Gradient adjustment trong tool strip panel module develop2 chn loi iu chnh bn mun thc hin hiu ng t menu pop-up , hoc ko thanh trt di y:Temp/ nhit iu chnh nhit mu sc ca mt khu vc ca hnh nh, lm cho n m hoc mt. 1 di Graduated filter vi nhit ph hp c th ci thin nh sng nh c chp trong iu kin nh sng phc tp/ hn hp.Tintb p cho nh vi mu xanh l cy hoc mu ti.Exposure/ phi sngThit lpphi sng cc b (1 vng ca nh) c th t c kt qu tng t nh dodging (lm sng vng sng) v burning (lm ti vng ti).Constract/ tng phniu chnh tng phn hnh nh, ch yu l nh hng n midtones.HighlightsKhi phc chi tit vng sng b mt do hin tng overexposed (cliping (xem histogram) - tm gi l chy sng)ShadowsKhi phc chi tit vng ti b mt do hin tng underexposed (cliping (xem histogram) - tm gi l chy ti)ClarityThm chiu su cho hnh nh bng cch tng tng phn cc bSaturationiu chnh sng ng ca ca mu sc. theo mnh th n ging nh bo ha mu. nhng m nguyn vn english n th ny:EN: Adjusts the vividness of the color.. sc ntgi tr > 0: Nng cao kh nng nh ngha ng vin ca chi tit./ nghe c v c chui nhng ti phn panel detail s hiu r hn v sc nt v ng vin - edge l nh th no. nm na l 1 chi tit s c 1 ng bin bao bc n. chi tit nh nh 1 vng trn 1 mu th ng vin l ng trn bao quanh n.gi tr < 0 lm m chi tit.NoiseGim sng ca ht nhiu nh. ci ny hiu qu vng ti.MoirRemoves moir artifacts, or color aliasing. - ko bit dch th noColorp dng mt mu cho cc khu vc b nh hng bi Brush adjustment.Specify options for Adjustment Brush:SizeXc nh ng knh ca u c. n v: pixel.FeatherTo ra mt s chuyn tip mm gia cc khu vc b t c v cc im nh xung quanh. Khi bn s dng c, khong cch gia cc vng trn bn trong v bn ngoi i din cho Feather.Flowiu khin mc p dng cc hiu ng ca cy c. nu bn t mu . v flow l 50% th ch t 1 na/ ch phi t gi tr flow trc khi t th flow mi c tc dng. theo mnh test nhiu ln th flow cng ko sa c sau khi t. nn dng n phi xc nh k bn mun p dng hiu ng bao nhiu % cho nt c. ch ny rt tinh t.ngoi i thc t mu hi dy 1 t. tm 1mm th ly dao co i cn 0.5 mm th c. cn phn mm ny th n cha cho php lm chuyn .Auto Masknt c ch nh hng n cc khu vc c mu sc tng t.DensityControls the amount of transparency in the stroke - ci ny mnh rt phn vn ko bit stroke l ng vin ging nh edge hay ko. nn.... dch n c khoai qu. ko dm dchmi im trn i din cho 1 brush adjustment.click vo cng c cy c hin th s im trn p dng.vng mu tng trng cho khu vc b nh hng bi nt c. check vo nh hnh bn gc tri pha di quyt nh t thm hoc xa bt.//1 s hiu ng ban u ca LR gip ch kh nhiu giai on u s dng brush adjustment:burn (darken): lm ti vng tidodge (lighten) lm sng vng sng.....teech whitening lm trng rng..... etc//1 hiu ng c gi l custom khi s dng nhiu hn 1 thanh trt.gi tr mc nh ca thanh trt l 0 hoc 50double click vo tn ca thanh trt reset gi tr ban u ca thanh trt.nhn Shift v di chut tng hoc gim 1 n v.

Cm n s quan tm ca mi ngi. V ch ch vit by ny nhm chia vi cc bn mi s dng nn mnh c gng trnh by c th v trc quan d t thc hnh. trong qu trnh lm vic vi Lr nu cc bn c tr ngi hay pht hin thm nhng tnh nng hay ca n xin chia s chung vi mi ngi trn Topic cng nhau hc tp. Nhn y xin b sung thm mt s iu v Brush:Size ca Brush iu chnh c bng roll ca chut (rt tin).Khi mun xa bt 1 phn Brush qut c th chn Erase hoc nhn Altt ri chnh Feather, flow..., qut ln phn Brush ny qut.Cc thng s trong Brush sau khi p dng trn nh ri vn c th iu chnh li c (tng t vi c Graduated). Khi nhn K hoc biu tng brush cc du trn trng hin ln cho bit cc brush p dng trn nh, click chut vo du trn no th vng p dng ( mu ) sng ln, bng thng s ca Brush chuyn sang trng thi edit (sng ln), ta c th chnh li cc thng s hoc xa bt 1 phn ca Brush.Brush rt hu dng khi hu k nh chn dung:Trong Effect ca n Lr to sn mt s brush chuyn lm mn da, trng rng , t mi..., c th t to thm cc Brush ring ca mnh (t chn my, lm trng en mt...): Sau khi chn cc thng s cho Brush nhn chn Save current settings as..., ri t tn cho brush.Trong Lr4 Brush c chnh c Noise, rt tt khi lm gim noise cc b mt s vng (ti) m khng phi gim noise chung lm gim nt ca c bc nh.

Cm n quan tm ca bc.S dng Module WEB cng n gin thi, y c cc cng c cn thit to cc trang web nh, c th save ti my ca mnh hoc upload ln server.Sau khi chnh sa hon chnh, a nhng hnh c chn vo cc collection.Vi mi Collection c th to ring mt kiu trang: chn 1 kiu trong Layout Style, chn 1 mu trong Template,Sa li cc ni dung trong Site Info, Trong Idenlity Plate c th chn l logo ca mnh (edit ging nh trong Watemarks).La chn mu cho cc thnh phn trong trang (Click chut vo khung ch nht ri chn trn bng mu);Ni chung l c th thay i cc la chn trn Panel bn phi ty thch., cc bc c vic voc cho mau ht ngy di!E lm cng mt ci cho vui.Nu thy thch th:Nhn (+) Preset c th p dng cho cc Collections khc.Nhn Export (pha di Panel bn phi) xut vo mt ni trong my tnh ca bn ri Share trn Network.Nhn Upload a vo website (ring) trn Server (khi phi thay i cc FTP server settings cho ph hp)Hy vng phn chia s ny gip cc bc c th chia s nhng hnh nh ca mnh theo mt giao din Web kh l Pro.