View Single Post
  #7  
Old 01-06-2021, 07:15 PM
pkinchington's Avatar
pkinchington (Peter (Kanga))
Registered User

pkinchington is offline
 
Join Date: Jan 2013
Location: Melbourne,Australia
Posts: 303
Quote:
Originally Posted by Craig_ View Post
If you're using a field flattener that suits your scope (no idea if that one does or does not), it's likely a backspace issue you need to work through. Someone else may be better placed to comment on whether you need to add or remove backspace to improve things though, I believe the distortion pattern can tell you this but I am not sure.
Hi Craig,
I'll investigate the backspacing issue further. I think I may have to add a couple of mm of extension. Can you exceed the recommended backfocus extension is exceeding the recommended extension allowable?
Cheers Kanga

Last edited by pkinchington; 02-06-2021 at 07:48 AM.
Reply With Quote