View Single Post
  #29  
Old 11-01-2021, 02:35 AM
billdan's Avatar
billdan (Bill)
Registered User

billdan is offline
 
Join Date: Mar 2012
Location: Narangba, SE QLD
Posts: 1,551
Quote:
Originally Posted by Bart View Post
Guys, I'm very interested in either the QHY or the ZWO version of this mono camera. Can I get away with the 36mm unmounted filters? Diagonal is about 28mm so that technically should give me about 4mm each side.
The unmounted filters sit on a 2mm (approx) shelf so your filter window is reduced to 32mm.
So you will get some corner vignetting, not enough to worry about though (depending on the focal length). A good set of flats will fix it. Plus we usually crop some of image anyway to eliminate stacking artefacts along the edges cased by dithering.
Reply With Quote