ZWO filterwheels

I can’t find/select the filterwheel from ZWO in the equipment list of filterwheels brands?

Hope to receive your reaction with interest.

Kind Regards and clear skies.

Arthur Wiegman.

Try downloading\installing the Ascom EFW driver from

Yep you have to download the EFW software of the ZWO website for it to show up.

I’ve been having problems with mine not changing to the correct filter sporadically but I suspect that is a PC issue not a SGP issue. TBC!