Video Conference camera sensitivity

[jujutujujutu]

Hi all,

I need to be able to specify for a new building what the lighting needs are in a video conference room. To do this I need to know:

(a)  what minimum light level is needed for a Cisco PrecisionHD camera to produce a good quality image without amplified video noise; and 

(b)  how large a brightness contrast between foreground and background can be compensated for by the "backlight" setting on an SX20.

I cannot find this level of detail in the Cisco documents I have read. Does anybody know of a more detailed performance specification for these two items?

Julian 

[Patrick Sparkman]

I've never seen that level of detail in any document, if this is a requirement and you can't get around not having this data, you'll more than likely need to contact Cisco and see if you can get the information from an engineer.