I have them press the button all the way down and don't move until they have silently counted to three.
Casio makes two cameras with 0.1 second shutter lag:
Z750 and Z55
The Canon SD550 has the same shutter lag.
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Any recommendations on a digital camera that doesn't require the user to press the shutter button half way first to focus? I've handed my camera to people to take pictures of us and every time I do, the picture is totally out of focus because they don't understand the reason or the concept of pressing the button ''half way'' to let the camera focus first. And yes, my camera (Canon) has both audio & LED cues, but I can't explain that to someone who doesn't speak my language.

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