The issue with depth of focus is due to the low light level. to be small
enough any leds that illuminate the scene are going to be very weedy.
Brian

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The Sofa of Brian Gaff...

Blind user, so no pictures please
Note this Signature is meaningless.!
"GB" wrote in message
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I want a little camera to put through holes in floorboards, to check for
leaking pipes and the like. USB, attached to the laptop should do the
trick, but I have tried one before and it was pretty crappy with a very
small depth of focus.

Can anyone recommend one that actually works well? Preferably not too
expensive.