Olympus C-2100UZ Review
Timings & File Sizes
Timing Notes: All times calculated as an average of three operations. Unless otherwise stated all timings were made on a 1600 x 1200 JPEG image @ HQ compression (around 450 KB per image).
File Size Notes: All file sizes are an average of three files. As is the case with JPEG it's difficult to predict the size of an image because it will vary a fair amount depending on the content of the image (especially the amount of detail captured). For example, take a photograph of a fairly empty wall and you'll get a small JPEG, take a photograph of a bush with a lot of detail and you'll get a larger image. File sizes here are closer to the later, the larger size of file you should expect.
Symbols: ~ = roughly / approximately.
|OFF to REC||4.2|
|OFF to PLAY||2.8||"No Picture" displayed (empty card)|
|REC to OFF||1.8|
|PLAY to OFF||1.8|
|REC to PLAY||0.9||Image not displayed, info displayed|
|PLAY to REC||2.4|
|PLAY: Image to Image TIFF||19.6|
|PLAY: Image to Image SHQ||3.0|
|PLAY: Image to Image HQ||1.5|
|PLAY: thumbnail view||1.0||Page of 9 thumbnails displayed|
|PLAY: Zoom-in||<0.5||Virtually instant|
|Auto Focus LAG (Single AF)||0.9||Dependent on focus subject *|
|Auto Focus LAG (Full-time AF)||0.7||Dependent on focus subject *|
|AE lock (press AEL)||<0.8||Fast|
|Shutter Release LAG (pre-focused)||~0.1||Very, very fast *|
|Total LAG (Cont. AF)||0.7||No pre-focus, one complete press *|
|Total LAG (Single AF)||0.8||No pre-focus, one complete press *|
|OFF to SHOT TAKEN||5.1||Switch on + Press shutter release|
* LAG times are often misunderstood and so are described below:
Auto Focus LAG is (roughly) the amount of time it takes the camera to autofocus (a half-press and hold of the shutter release button), this timing is normally the most variable as its affected by the subject matter, current focus position, still or moving subject etc. This timing is an average.
Shutter Release LAG is the amount of time it takes to take the shot after autofocus, this timing assumes you have already focused (half-pressed the shutter release) and now press the shutter release button all the way down to take the shot. This timing is an average.
Total LAG is the total time it takes (not just the two above added together) if you haven't pre-focused, that is no finger touching the shutter release button, press it all the way down in one movement, this new timing is how long it'd take if you were in one of those spur-of-the-moment situations. This timing is an average.
An impressive performance, the C-2100UZ is fast, no niggling pauses or hiccups, startup time is respectable, focus times are fast and shutter release lag was extremely fast (nearly as fast as the Canon G1 which is our current fastest shooter). The Off to Shot Taken time was also impressive.
File Flush Timing
Timings shown below are the time taken for the camera to "flush" the image out to the CF card (when the red activity light next to the storage compartment stops flashing). The estimated number of images per 8 MB SmartMedia card is given as a guide to beginners (as that's what's bundled with the camera - differs with region).
8 MB SM card
|Store 1600 x 1200 TIFF||18.5||5,640 KB||1|
|Store 1280 x 960 TIFF||12.4||3,615 KB||2|
|Store 1024 x 768 TIFF||8.6||2,319 KB||3|
|Store 640 x 480 TIFF||4.2||915 KB||8|
|Store 1600 x 1200 SHQ JPEG||3.4||~ 1,230 KB||6|
|Store 1600 x 1200 HQ JPEG||2.2||~ 450 KB||17|
|Store 1280 x 960 SQ High JPEG||2.2||~ 640 KB||12|
|Store 1024 x 768 SQ High JPEG||2.2||~ 500 KB||16|
|Store 640 x 480 SQ High JPEG||2.2||~ 200 KB||40|
Relatively quick flush times, these timings have no effect on the 'shot to shot' time (except for TIFF where you must wait for the image to be written), you can pump the shutter release fairly quickly to take shots, your only limitation is the amount of free buffer space which is indicated by the bar display in the bottom left corner of the LCD.
|Image Type||Frames per sec
||Max no. of
|1600 x 1200 SHQ JPEG||2.1 fps||6||7.12 s|
|1600 x 1200 HQ JPEG||2.1 fps||16||4.82 s|
|1280 x 960 SQ High JPEG||2.1 fps||9||5.86 s|
|1280 x 960 SQ Normal JPEG||2.1 fps||27||3.16 s|
|1024 x 768 SQ High JPEG||2.1 fps||16||3.60 s|
|1024 x 768 SQ Low JPEG||2.1 fps||35||3.30 s|
|640 x 480 SQ High JPEG||2.1 fps||58||2.88 s|
|640 x 480 SQ Low JPEG||2.1 fps||93||3.24 s|
As we can see by the results of these tests the C-2100UZ uses the "After Image Processing" type of buffer. That is you can buffer a different number of frames depending on the selected image file size (JPEG size / quality). Frame rate appears to be limited mechanically. All in all a pretty good performance, 1600 x 1200 HQ (2.1fps, 16 frames) should be sufficient for shooting wildlife / amateur sports events.
Overall fairly good, especially considering the image stabiliser (which normally saps quite a bit of energy). In a full days shooting we only go through about one and a half sets of AA NiMH batteries.
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