DayStar does not recommend using a UV/IR cut filter (or any other internal one) on any refractor over 120mm, as too much heat is involved to bounce back up the scope.
You really need the ERF for safe operation!
Search found 1 match
- Wed Jan 04, 2017 6:17 pm
- Forum: Commercial Solar Filters/Cameras/Hardware
- Topic: Problems with Quark and Baader filters
- Replies: 17
- Views: 10459