[AZ-Observing] Re: TouCams Available

>Jeff,
>
>I checked the one I have and it's the Philips ToUcam XS (PCVC720K/17).
>According to website www.pc-cameras.philips.com, under manuals, the XS has a
>CMOS chip with 352X288 pixels and resolution of 640x480. Illumination is <10
>lux. The ToUcam Pro (PCVC740K) has a CMOS chip with 640x480 pixels and
>resolution of 1280x640. Illumination is <1 lux. Whether the extra resolution
>and illlumination is going to make a difference on the screen for bright
>objects remains to be seen. 640x480 should give me some good pics. Neither
>one is good for dim objects so I wonder about the 1 lux claim.
>
>Jack Jones
>Saguaro Astronomy Club
>Public Events
>Phoenix AZ
>spicastar@xxxxxxxxxxxxxxx
>

Thanks Jack.

Actually you can get some faint objects with the camera. While have 
have not tried the ToUcam I have used some of the older less 
sensitive QuickCams. The QuickCams can be cooled to increase 
sensitivity and can take dark frames to have them subtracted from the 
main frame.

I've been working on a dry ice cooler for my QuickCam. I may be doing 
some work with it once I get Mars out of my system.

Jeff
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