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Hello, Are there any Linux based DVR cards out there. Last night i came across a software for linux based dvr cards named zoneminder.Can any one kindly give an outline for the software.Which cards to use with it.

Hello everyone, I have few questions pelase if any one can help. 1) If i use a high resolution camera 480 tvl ,1/3" ccd with 4mm lense,what will be the maximum distance for face recognisation? 2) What will be the diffrence between a 21" sony televsion and a 21"600tvl cctv monitor for use with above mentioned camera.(regarding details and calrity of picture) 3) Which compression fromat is the best regrading picture quality and saving space either the wavelet ,mpeg4 ,h.264 or anyother. 4) As far as the remote viewing is concerned what should be the specification of DSL line for getting maximum speed on remote viewing.(how many FPS?). Thanks.

Hello, Can any one please tell how good are the AVTECH and Korea CCTV (Sun kwang) cameras in performace and durability. Thanks.

Thank you Cooperman for replying each question. Regarding quest 2 i was looking for diffrence between picture qaulity of a cctv monitor and TV. If a good performing camera of 480 resolution, 0.1 lux minimum illumination and S/n ratio of more then 48 db at AGC off placed indoor in excelent light conditions,how it will perform on a 21 inch sony vega as compared to cctv monitor of 600 tvl and if the same camera installed outdoors with poor light conditions at night ,which of the two will give better results .

Hi, I have a c-mount camera HR , and i have lences of F1.2 or F2.0 4mm standard from different manufacturers , so which lense either F1.2 4mm , or F2.0 4mm will give the best image results and what will be the diffrence. And one more thing i have experiance that a standard fixed lense works more better in day and night as compared to auto iris lenses (VD,DD).Why is that so?