BiGKaT 0 Posted May 13, 2009 I am new here and just looking into cctv cameras. I found some 520 and 560 line units with varifocus lens that have adjustable zoom and focus from the 3mm wide angle to the 9mm narrower field. I was wondering if anyone knew a link or place to view sample images from this type of camera to compare the 3mm to the 9mm views? Share this post Link to post Share on other sites
Soundy 1 Posted May 13, 2009 There are some samples here: http://www.planetsecurityusa.com/cctv_guide.html#fieldofview http://www.vihon.com/Vihon_Calculators/Field_of_View_Examples/body_field_of_view_examples.html http://www.ezcctv.com/cctv-lens-guide.htm There are lots of calculator apps that will let you figure out the field of view for different lenses and different focal lengths on different cameras, but there's a simple web-based one you can try here: http://dvr.videotechnology.com/lense/ Share this post Link to post Share on other sites
BiGKaT 0 Posted May 16, 2009 TYVM They were just what I was looking for Share this post Link to post Share on other sites
john_cctv 0 Posted May 22, 2009 If you go to the Supercircuits website and click resources then tools there is a FOV comparison tool. Share this post Link to post Share on other sites
