QHY PoleMaster Adapter - for iOptron CEM60 Mounts - 20037 Power Hub These are used for adjusting

These are used for adjusting different distances of your astro-imaging camera to the focal plane of the telescope or the corrector/field flattener

It has a 42 mm female diameter on one side and the proper bayonet flange mount on the other

To ensure the result

The camera records these data after the frame header of each frame (replacing some pixel values in the first few lines)

It uses the well-known proven Cheshire technique for doing alignment of a reflector

QHY PoleMaster Adapter - for iOptron CEM60 Mounts - 20037 Power Hub These are used for adjustingThis adapter will attach the QHY PoleMaster (sold separately) to the following mounts listed below. Compatible mounts that we are aware of: iOptron CEM60