I have the ASIAIR and ZWO 5 position EFW and the ZWO Focuser.
WHen I first installed my EFW, I could have sworn I saw a setting for focus offset for each filter.
am I mistaking?
If this is not this needs to be a feature that is added.
For my setup, No filter focus steps=31530, Ha filter focus=30960 steps.
It is hard to stop the automatic exposure and have to change the focus for each filter.