Stu-Wales

Sorry this is late but thank you for your help.

23 minutes ago, fozzybear said:

Hi,

According to the Manuals both Camera's Have 12.5mm back focus from sensor to M42 Flange. As you currently don't have a FF for the scope you could use a 50mm extension in it's place for now

Thank you, that's  helpfull

Hi all I have the skywatcher  Evorstar 80Ed, as yet I don't have a field flattener, I have two cameras I would like to be able to connect to it without the star diagonal their both Zwo, ASI 120mm-S and the 224MC, I cant seem to find the information regarding the correct back focus anywhere, any help will be gratefully appreciated, thanks in advance.