pkoi 0 Posted December 3, 2012 I wish to clear some misconception I have about TVL-resolution, Correct me if I'm wrong Most analog DVR cannot record to more than 480 vertical line, That would mean a 700tvl equal to a 700x480 resolution. Is there a point where horizontal resolution is too high compared to the vertical ? I was interested in purchased these 960H Sony Effio cameras but I find it very hard to search for DVR that can record this higher resolution. What do you think of thes 960 x 576 cards ? http://www.ebay.ca/sch/i.html?_nkw=960x576&_sacat=0 Also why are sone camera advertised as 700tvl when , for example, highest resolution Pelco FD2-V specs show : http://www.pelco.com/documents/product/en/shared/analogcomparisonguide.pdf Sensor : 960H Resolution : 976 (H) x 494 (V) Horizontal resolution : 650 TVL Since most-all cameras and DVR can both work in NTSC and PAL mode, Shouldn't all CCTV be using PAL only ? Share this post Link to post Share on other sites
