Spectra IV 29X and 36X will sometimes lock up focus at zoom or wide end


The Spectra IV 29X and 36X will sometimes lose the ability to focus when zoomed in all the way or zoomed out all the way. 

Product Line

Pelco Cameras, Pelco Video Management


  • Spectra IV 
    • DD427
    • DD429
    • DD436


This appears to be an issue with firmware and a race condition that the focus motor and the lens motor get out of synch with one another. It is an intermittent issue that happens once in a while.


If you reset the camera in the camera menu this will clear this and resolve this issue.

steps to clear;

1. Use "preset 95" to get into camera menu

2. At bottom of the menu put cursor at "reset camera"

3. Press Iris open to do function.


Related article:

Access The Program Menu of a PTZ Camera sending the Preset 95 Command