Joel Mateo 0 Posted March 25, 2011 I see a lot of new cameras on the market with some interesting features, but getting real definitions and answers is difficult at best. When I see a 3x Varifocal Sync Focus (Pan Focus) Lens Dome Camera with RS-485, my guess is that it has a 3X-Zoom that would be adjustable via RS-485, other than that, I get a little confused with the "Varifocal Sync Focus (Pan Focus) " which appears to be all one term. Does anyone have a good definition of these terms? Thanks Share this post Link to post Share on other sites
survtech 0 Posted March 25, 2011 "Varifocal Sync Focus" basically means it acts like a true zoom lens in that once the focus has initially been set, the lens can be zoomed in and out without requiring re-focusing. Share this post Link to post Share on other sites
Soundy 1 Posted March 26, 2011 I would guess from that description, that the zoom is NOT remote-controllable, either... but hard to say for sure without at least a make and model number to look up. Share this post Link to post Share on other sites
Charles Liu 0 Posted April 7, 2011 3x varifocal is that iris, focal length, focus adjustable, it is sort of "low level" camera, 2x maybe better. Share this post Link to post Share on other sites
