I have tested quite few models of security cams and JVC makes some of the better ones.  On most of these models you can disable AGC and get a standard fixed or zoom lens.  I would recommed the auto iris unless you have 100% control of the lighting. 

Don't expect a great image compared to a DV camera since the security ones have none of the DSP for edge enhancement, skin tone smoothing and so on (a lot goes on in those things).  Using a model with S-video output will reduce the color artifacts.

On Dec 21, 2007 3:52 PM, Alexandre Quessy <listes@sourcelibre.com> wrote:
Hi,
I am shopping for a camera or an installation. :)

Detection (pix_blob, etc.) requires a camera with a pretty high
resolution, and I also need to be able to disable auto gain control
(AGC) and auto iris control (AIC). I guess disabling the auto white
balance is a good idea too. I looked at matco.com, which has pretty
afordable cameras. Their SX-920C-HR looks pretty good. It has 480 TV
lines, which gives more than 720x480 pixels. See
http://matco.com/pro-camera-1.htm and click on "Technical details"
under that part number to see the little datasheet.

I am afraid I cannot disable AGC, though at least I can use a lens
which has no auto iris. Is that correct ? Do you guys think there is a
way I can disable that auto iris control ? Otherwise, anyone has a
camera to suggest ? Thanks a lot !

--
Alexandre Quessy
http://alexandre.quessy.net
http://www.puredata.info/Members/aalex

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