handshake and super steadyshot
TRANSCRIPT
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Handshake and Super SteadyShot
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AGENDA
PART1: What is Hand Shake?
- What is Hand-Shaking Image?- Mechanism of Hand Shake
- Measurement for Hand Shake
PART2: How to Prevent Hand Shake?
- Image Stabilizer and High Sensitivity
- Sonys Strategy
PART3: DSC-T9 Optical Image Stabilizer
- Worlds FIRST!
- Slim + Image Stabilizer
- STAMINA, High Performance Stabilization
- Double Solution for Anti Blur
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PART1 : What is Hand Shake?
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What is Hand Shake?
Hand shake occurs when
- taking pic in a dark place,- with slow shutter speed,- camera moves while theshutter is open
It happens more often with compact cameras,for they are light-weighted and not fixed when shooting.
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Hand Shake and Object Shake
Hand shake is different from Object shake
Object shaking image
Hand shaking image
- happens when camera moveswhile shutter is open
- overall image is blurred- lacks sharpness
- sometimes looks doubly pictured
- happens when object moves whileshutter is open
- only object is blurred- background is sharp and stable
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Mechanism of Hand Shake
When does it happen?
-It happens when shutter speed goes lower than 1/f (35mm)
ex) DSC-T7
- Hand shake happens when the shutter speedgoes slower than 1/40 for the wide end.
(1/120 for the tele end)
- How dark you can go depends on the F
number / ISO sensitivity.
f = 38mm (W) ~114mm (T)
Shutter Speed
1/40 1/80 1/120 1/2501/161/8
Limit forWide end
Limit forTele end
Limit with ImageStabilizer (2steps)
1Step 1Step1/160
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Mechanism of Hand Shake
Hand shake is measured by
Yaw
Pitch
+0.3 -0.3 +0.3 -0.3
-Average angle of hand shake is around0.3~ 0.5.
Angle
- 1Hz refers 1 stroke in 1 second.(ex:5Hz= 5 stroke in 1 second.)
-General hand shake is around 5-10HzOne sec
One
stroke
Frequency -Speed of the hand shake
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PART2 : How to prevent Hand Shake?
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How do we prevent Hand Shake?
There are two ways to prevent Hand shake
Image Stabilizer- Cancel out the Hand shake by movingthe lens to adjust the light angle
Higher Sensitivity- Keeps the shutter speed higher byincreasing the sensitivity (ISO)
-The risk of hand shake is lesser when the sensitivity is high,but the noise increases along with the sensitivity and tends to
destroy the picture quality.
http://konicaminolta.jp/products/consumer/digital_camera/dimage-x1/index.htmlhttp://konicaminolta.com/index.htmlhttp://www.casio.com/index.cfm?fuseaction=home.homepagehttp://panasonic.co.jp/pavc/global/lumix/index.htmlhttp://home.fujifilm.com/index.htmlhttp://panasonic.co.jp/pavc/global/lumix/fx9_8/index.htmlhttp://panasonic.jp/ -
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Image Stabilizer
Sonys Strategy
Our Strategy for DSC-T9 is
Image Stabilizer Higher Sensitivity
High Sensitivity
Double Solution for Anti-Blur
DSC-T9
+
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Optical Image Stabilizer Super SteadyShot
1. Gyro Sensors detectthe angles and the
speed of hand shake.
2. Moves the shiftlens and adjust the
light angle.
Hand Shake
Gyro Sensorsdetect
hand shake
Moves theshift lens
Adjust thelight angle
NoBlur!
Image Stabilizer *Please see PART III for more details on Image Stabilizer.
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High Sensitivity
High Sensitivity
Clear RAW NR Realizes high sensitivity pictures with less noise
DSC-T9 ISO320(Auto) / 640(Manual)
Clear RAW NR
RAW Data
Noise Reduction JPEG
File
Clear Luminance NR Reduces the luminance noiseClear Color NR : Reduces the color noiseClear RAW NR : Reduces the noise at RAW data,
effecting both on luminance and color noise.
Encoding
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Whats good about High Sensitivity?
1. You can shoot object brighter in dark places.
ISO64
ISO100
ISO200ISO400
ISO800
Unnatural, black-out at the back.
Picture get blurred without flash.
No Handshake andnatural picture!
2. Prevents from handshake with higher shutter speed.
*The picture brightness will not change in lighter environment.
(Shutter speed will adjust the total light amount)
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Double Solution
Optical Image Stabilizer High Sensitivity
FX9
T9
High Sensitivity Image Stabilizer
T9 works DOUBLEY GOOD with both features!
(Effective Shutter Speed)
(2-3 steps)
(3 steps)
640/800
320/640
Auto/Manual)
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PART3DSC-T9 Optical Image StabilizerSuper SteadyShot
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2) Slim and No Blur!
Slim body realized by the newly developed anti shake unit
DSC-T9 Optical Image Stabilizer
1) Worlds FIRST!
Shift lens Optical Image Stabilizer as Folded Path Lens
3) STAMINA & High Performance
240 Pictures with quick and high performance stabilization
4) + High Sensitivity!
Higher success rate with high sensitivity
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1) The Worlds FIRST!
Lens Unit
- DSC-T9 is the first Shift-lens optical image stabilizer withFolded-path lens unit.
Anti-shake Unit
Lens-Shift Optical Image Stabilizer
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Different Types of Optical Image Stabilizer
-Moves the lens unit itself accordingto the hand shake
No degradation in opticalperformance
Consumes higher power, andtends to make the body bigger
Lens Unit ShiftLens Shift
- A linear motor shifts a single lensto adjust the incoming light
Smaller in size, and consumesless power.
Possibility of chromatic aberration
DSC-H1
T9
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2 Slim + Optical Image Stabilizer
T7 Lens Unit T9 Lens Unit
Shift lens
New lens unit achieves higherresolution, while keeping almostthe same size as T7 lens unit.
Realized both slimness and image stabilizer!
- Developed new lens unit by utilizing the T7 lens unit- Smaller and Higher resolution
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3 High Performance and STAMINA
T9 FX9
*Image of the shift lens
Quick and high performance
Newly developed small lens unit
Small
Need less powerHigh STAMINA
Moves horizontally(back/forth/right left)
to the body
Unique design (slim) Made the body slimmer!
Lens
Coil to drivethe shift lens
*Moves vertically
(up/down/right/left)
to the body
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DSC-T9 (SSS ON) DSC-T9 (SSS OFF) Current (W/O SSS)
4) + High Sensitivity
Tele End Success rate for shooting in low light *Sony Research, this data doesnot guarantee the performance
Candle Bed room Bar Town light Restaurant Living roomSuccess
Rate
No Blur
Dark
Blur
Bright
Neither of them
(current Sony)
Only High
Sensitivity
Image
Stabilizer and
high sensitivity
Image Stabilizer + High Sensitivity works the best!
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DSC-T9 (SSS ON) DSC-T9 (SSS OFF) Current (W/O SSS)
4) + High Sensitivity
Wide End Success rate for shooting in low light *Sony Research, this data doesnot guarantee the performance
Candle Bed room Bar Town light Restaurant Living roomSuccess
Rate
No Blur
Blur
Dark Bright
Neither of them
(current Sony)
Only HighSensitivity
Image
Stabilizer and
high sensitivity
Image Stabilizer + High Sensitivity works the best!
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Effect Sample
Optical image stabilizer plus
high sensitivity enables you
to take natural picture withouthand shake!
Picture comes out unnatural and
black out at the back with flash
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Effect Samples
Twilight Scenes
Restaurant
T9 works better with SuperSteadyShot plus high sensitivity,even in low light conditions!
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Material edited by GMC, DIG-MK, Sony 2005