Quote:
Originally Posted by JA
If you have a look at the white paper for it, here:
https://s3.amazonaws.com/celestron-s..._paper_web.pdf
There is a filter holder for a clear filter (see 1st pic) , which can be replaced by their own light pollution filter (I think possibly the one you purchased, not sure). In any event according to their specifications the thread for the filter is a very unhelpful M75 x 0.75 (see 2nd pic: Appendix A excerpt). Only problem would be finding such a 75mm filter size. 72mm and 82mm are a dime a dozen. Maybe a stepdown or stepup ring can be found or an extensive search.
Best
JA |
i bought that but didn't realise it doesn't do the uv/ir