The following should aid you in preventing common installation problems and help you determine if a lens is actually defective. There are two types to auto-iris lenses currently available. Many of today's cameras can accept either type of lens, but it is important to make sure that camera and lens are compatible and set up properly. All motorized functions are controlled by the lens controller.
Many zoom lenses are available with pre-position potentiometers.
The majority of lens problems experienced are auto-iris related. Verify that the lens connector is wired the same as it appears in the camera instructions. Correct connector wiring is crucial and incorrect wiring could damage the camera and lens. Reversal of the power and ground wires will usually blow a fuse or circuit inside the camera, so be careful. You can view the pin-out configuration for most cameras by going to our cable assembly applications pages and choosing the cable assembly part number that matches your camera.