Spacing for new CCD

[Diddykong]

Hi all,

 

Just picked up an ATIK 414EX OCS CCD and am trying to get it working with my SW 200PDS scope.  What adapters will I need to connect the CCD to my Coma Corrector and the focuser?

And also what spacing will I need?  Is there a way to work this out?

 

Thanks in advance.

[MarkAR]

If you can find the specifications for your coma corrector it should might have the back focal distance listed. I think they are normally 55mm.

The Atik 414EX has 13mm back focus so deduct that from the 55mm gives you 42mm for spacers and filter wheel.