SBIG ST4000 dual chip compatibility


I am trying to connect my SBIG ST4000 and use PHD 2 with the internal guide chip. I can connect the camera or the guide chip, but not both. I’d been under the impression that you’d implemented a “side door” that would allow me to use both. Please advise.


See the SBIG API Guider at:


And be sure to enable the guide chip in the camera setup as well as select the correct settings in PhD2


Got it! Thanks,