Saturday, July 16, 2011

CCTV "Prime" lens on a point and shoot digital?

Fascinating project. Couldn't find a manual on your camera so I don't know that it is a fixed aperture. Every digital camera that I know of has a variable aperture, but you seem to be saying that yours is fixed at some very small opening. Do the CCTV lenses have variable apertures? I would think so. Most CCTV cameras are set up to be run remotely, so the lens is electrically controlled for focusing and probably aperture. The chances that your camera is electrically compatible are slim, but maybe you can overcome that. If others are using the lens as a prime, they must be able to adjust it mechanically, or do they? You should find out. Zoom happens either optically or digitally. Optical zoom is a matter of mechanically moving one lens in relation to a second lens. If you remove the lens assembly you will lose that ability, but that is what to expect of a prime lens. The 12MP sensor should give you all the resolution you could possible need. If the CCTV lens can be controlled manually, I would think that this is a worthwhile project.

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