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ColorCorrectlyrenderthe
mostdifcultlighting
DetailEnoughfornalcrop
OpticsTocaptureeverydetail
From the labOpticaland
digitalperformance
H3DII-39,HTS1.5,HCD28
Movingbeyond35mmDSLR
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H3DII-39,HTS1.5withHCD28mm,ISO50.
H3DII-50,HTS1.5withHCD28mm,ISO50.Pictureiscroppedtoreduceimageheight(non-proportional).
H3DII-31
ISO100
Canon
ISO100
Nikon
ISO100
H3DII-31
ISO100
H3DII-31
ISO800
Canon
ISO800
NikonD3X,NikkorTS24,ISO100.
ThecolorsfromtheH3DII-31are
renderedcorrectlyatallISOset-
tings.ThecolorsfromtheCanon
andNikoncamerasshowaclear
colorshiftinseveralcolors.
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NikonD3X,NikkorTS24,ISO100.
Taking colors further
TheimageshotwiththeNikoncamera,showssomeunnaturalsatura-
tionwhereastheH3DIIimageshowtheoriginalcolorsofthescene.
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H3DII-39,
HTS1.5,
HCD28,
f/16.
NikonD3X,TS-24mm,F/11.H3DII-39,HTS1.5,HCD28,f/16.
DACcorrected.
NikonD3X,
TS-24mm,
F/11.
TheH3DIIimage
hasdetailallover
theimageareaand
thankstotheauto-
maticDigitalLens
Correctionin
Phocus,thereisno
visiblechromatic
aberrationordistor-
tionintheimage.
TheNikonimage
hasclearlyless
detailandalsoshow
someheavychro-
maticaberration
whichcannoteasily
becorrectedforas
itisnotsymmetrical
whenthelensis
shifted.
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MTFdiagramforHCD28mmandHTS1.5atf/6.3.
(10,2040lp/mm)
EdgedetailfromtesttargetimageshotwithH3DII-39using
HCD28mm+HTS1.5atf/6.3.Areaisindicatedwithared
boxinthetesttargetimagebelow
EdgedetailfromimageshotwithNikonD3XusingTS-24mm
atf/5.6.Areaisindicatedwitharedboxinthetesttarget
imagebelow.
20 30 40100
100
80
60
40
20
0
Distance from Center [mm]
MTF[%]
0 6 12 18 24 30
Distance from Center [mm]
MTF[%]
Actualtesttarget(100cm75cm)andsampleMTFdiagram.
TheMTFdiagramshowsthelensperformancefromthecenteroftheimagetotheedgeasindicatedbythetwoyellowdottedlines.
f/11
20 30 40100
100
80
60
40
20
0
Distance from center [mm]
MTF[%]
Taking details further
MTFdiagramforNikkorTS-24mmatf/3.5.
(15,3060lp/mm)
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Thephotoonthispagewasshotwitha
state-of-theart35mmDSLRsystem
comprisinga21.1megapixelbodyand
af1.2/50mmlensatISO100.
Theaperturestoppeddowntof2.0.
Therenditionoflowcontrast
detailinthecorneroftheimage
issufferingfromthegeneraldrop
incontrastneartheedgeof
theimagecircle.
Theeasilyvisibleredfringerunning
alongthelineoftheshoulderproves
thatcontrastofnedetailisun-
doubtedlycompromisedbylateral
chromaticaberration.
Sharpnessisntjustcompromised
neartheedgesoftheimage.Theanti-
aliasinglterinfrontofthesensoris
placinganupperlimitontheresolu-
tionoflensandsensorcombined.
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Lateralchromaticaberrationisnot
anissuewiththeHasselbladlens.
Theadvantageofahigherresolu-
tionsensorcontinuestobevisible
evennearthecornersoftheimage,
duetomuchbetteredgesharpness
oftheHasselbladlens.
Thehighcontrastofnedetail
thatthelensdeliverscanbefully
exploitedasthereisnoanti-aliasing
lterlimitingtheresolution.Moir
artifactsareeliminatedbythemoir
toolinPhocus.
ExtractfromVictor2008PhotokinaSpecialarticle...Thebiggerthebetter
Thephotoonthispagewasshotwith
anH3DII-31withanHC80mmlensat
ISO100.Theaperturewasstopped
downtof2.8toobtainthesamedepth
offieldasthe35mmDSLRsystems.
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Latest from the lab
FullautomaticDigitalLensCorrectionsupportforallHC/HCDlenses
FullDigitalLensCorrectionsupportforallCarlZeissCtypelenses(VSystem/HSystem+CFadapter)
FullDigitalLensCorrectionsupportforallCarlZeissF/FElenses(VSystem)
Larger sensors and higher resolution
Medium-formatCCDsaremorethantwiceaslarge
as35mmsensors.
More well-defined depth of field
Duetothelargersensor,aMediumFormatcamera
producesashorterdepthoffieldatthesameaperture,thana35
mmDSLR.E.g.f/2,8ona3648mmformatproducesthesamedepthoffieldasf/2on2436mmformat.
Thesamediameterofapertureormorecorrectly,theentrance
pupil1producesthesamedepthoffieldonbothformats
Thelargerformatrequiresalongerfocallengthforthesamefield
ofview
Thef-number=focallength/diameterofentrancepupil:Same
diametergivesahigherf-numberonthelargerformat
Thelargerf-numberreducesaberrationsandproducesahigher
imagequality
Larger and brighter viewfinder image
Comparedtoa35mmDSLR,theHasselbladview-nderimageissignicantlylargerandbrighter.
H4D-60: 53.7 40.2 mm
H3DII-39/50: 49.1 36.8 mm
H3DII-31: 44.2 33.1 mm
35 mm DSLR: 36 24 mm
Fundamentaladvantages
www.hasselblad.com
1 Entrance pupil: The aperture viewed from the front of the lens.
