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Home > Hardware Reviews > Digital Cameras

Tuesday, July 26, 2005
Sony CyberShot DSC-T33

5. Timings and Sizes

Timings and Sizes

The DSC-T33 uses the really fast Sony Real Imaging Processor™. The operation speed is really fast in both record and play modes. Auto-Focus speeds are more than adequate and on many occasions surpass many prosumer grade cameras, though its accuracy in macro mode may suffer a bit. Power on, focus and JPEG image writing and playback times are very fast when using a Memory Stick DUO Pro card. The flash on the other hand needs some time to recharge, something that's annoying considering its low power.

Test Notes:

All times are calculated as an average of three operations. All operations are made at a maximum resolution of 2592 x 1944 pixels, fine quality JPEG image. The media used for these tests was a 256MB Sony Memory Stick DUO Pro card.

Action Details Time (seconds)
Power : Off to Record   <1 sec
Power : Off to Play Image Displayed 1 sec
Power : Record to Off Lens retracted and all activity ceased <1 sec
Power : Play to Off When Buffer is empty Instantaneous

Record Preview Image displayed <1 sec
Mode: Record to Play   <1 sec
Mode: Play to Record Lens already extended ---
Mode: Play to Record Lens not extended <1 sec

Play: Magnify To full magnification (4x) 1 sec
Play: Image to Image Time to display each saved image 1 sec
Play: Image to Thumbnail Time to change to thumbnail view <1 sec
Play: Thumbnail View Time to browse through thumbnail displays <1 sec

Action Details Time (seconds)
Zoom from wide to tele   3 sec
Half-press Lag (0->S1) Wide zoom end 1~3 sec
Half-press Lag (0->S2) Telephoto zoom end 1~3 sec
Half to Full-press Lag (S1->S2) LCD Live view Very fast
Half to Full-press Lag (S1->S2) Viewfinder LCD switched off ---
Full-press Lag (0->S2) LCD live view, wide angle 1~3 sec
Off to Shot Taken LCD live view, wide angle 3~4 sec
Shot to Shot Flash off 2 sec
Shot to Shot Flash on 9 sec

Lag Timing Definitions

Half-press Lag (0->S1)

Most of the modern cameras auto-focus and calculate the exposure needed for each shot when the user half-presses the shutter release button. Half-press Lag is the time needed between half-pressing the shutter release and the camera indicating that focus was achieved and exposure was estimated on the LCD monitor and/or the viewfinder.

Half to Full-press lag (S1->S2)

The time needed to take a shot by Full-pressing the shutter release, assuming the camera had already focused and evaluated the exposure settings.

Full-press Lag (0->S2)

The time needed for the camera to take a shot when the shutter release button is fully pressed, without having pre-focused by half-pressing.

File Write / Display and Sizes

Timings shown below are the times needed for the camera to process and store the image to the storage card. The timer is started as soon as the shutter release is pressed and stopped when the activity indicator goes out. The media used for these tests was a 256MB Transcend 45x SD card.

Image Mode Time to store (secs) Time to display (secs) File Size (approx.) Images on a 256MB card
2592 x 1944 JPEG Fine 2 sec 2 sec 1.98 MB 129
2592 x 1944 JPEG Stand. 2 sec 2 sec 1.45 MB 174




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