'At 1.7 inches thick and weighing 12 ounces, the A640 is a bit too bulky to just slide into a pocket'
'It adds interesting features like a digital tele-converter and tethered remote shooting – items that are fairly new to the PowerShot line.'
'a 4x optical zoom lens (35-140 mm equivalent), with an additional 4x digital zoom for 16X overall.'
'On the bottom of the camera you'll find the battery and memory
battery/memory compartment is of average quality.'
'auto white balance is bad with tungsten lighting'
'auto white balance is bad with tungsten lighting.'
'it sometimes failed to focus quickly enough'
'It does not rotate in a camcorder-like fashion, but simply tilts outward for a better viewing angle'
'no practical shutter lag'
'The large grip is comfortable'
'The function menu itself remains largely unchanged, granting easy access to such settings as white balance, ISO sensitivity, exposure compensation, image size, and compression level.'
'most of the picture was very overexposed--except for some areas near the bottom of the image, where a dark shadow appeared because of the extended lens blocking the flash.'
'Canon redesigns the SD500's compact outer shell.'
'ISO 400 images are so noisy they look almost mushy, which is somewhat off-putting.'
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