View Single Post
  #3  
Old 05-05-2019, 03:56 PM
Merlin66's Avatar
Merlin66 (Ken)
Registered User

Merlin66 is offline
 
Join Date: Oct 2005
Location: Junortoun Vic
Posts: 8,904
Do the ZWO filters have any UV-IR coating?
How does the B image compare (bloat wise) with say the R image?
(I had to fit a UV-IR filter to my DMK cameras when I set them up with the 60mm f3.8 electronic finder)
Have you tried to refocus the B filter??
Reply With Quote