lukater1974

* For network cams .. If it is not specified, will it be safe to assume it uses interlaced scanning? Actually one of the advantages of IP cams is they have a progressive scan sensor Lag in IP Cam * What is the cause of the lag in IP Cam? (Actual motion vs actually seeing it on screen) This happens especially with cheap cams using (pseudo)H.264 codek in facts this codek in some cases requires a lot of processing power from PC side (read Pentium 4 or 5 processor) * Is there anyway to tell from spec sheet if there will b a lag? High quality IP cams don't have this problem since the producer was able to create a lighter codek or a camera that can do the biggest part of the job requiring less work from computer side Size of sensor I understand that size of sensor affects the image quality of the video. It seemed like the specs of most of the reputable brands have the following trend: - Below 1MP : 1/4" - 1 to 2MP: 1/3" - 2 to 3MP: 1/3" or smaller Actually most of the "reputable brands" use 1/2 C-MOS (or 1/3 ccd)sensor since C-mos sensor (vs ccd) has problems with working under low light conditions so a bigger size of the sensor means a brighter image

Hi i'm Luca from Italy i work in the safety market (cctv,bulglar systems and fire detection)in a technical assistance role since almost 10 years Have some esperience in cctv both analog and ip systems Hope i can sare my knowledge and help and learn from other users here