peterj 0 Posted June 10, 2008 Still figuring out a few things as I design a home system. If I buy a camera with a zoom lens attached, I notice they have a cable going to back of camera for the auto iris control. So this will give the correct exposure depending on the zoom position right? How is the zoom controlled? Are they typically done manually, or do some lenses have another cable to connect to a control system? Thanks! Share this post Link to post Share on other sites
coolie11 0 Posted June 10, 2008 Standard Vari-Focal Lenses are manually adjusted. If you're referring to motorized zoom lens, yes they have an additional connection for an external controller. Here's a little info on one I used a long time ago. \http://www.accentalarms.com/faq/attachments/100/Pelco_MLZ6DT_Motorized_Zoom_Lens_Control_manual.pdf Share this post Link to post Share on other sites
peterj 0 Posted June 10, 2008 Thanks a bunch for the info coolie11. I will read the pdf (just printing it out). PeterJ Share this post Link to post Share on other sites
