Ligth Pollution Filters for a 4 inch refractorPosted By Saul Martinez |
I live in a modertaely to highliy light polluted area nad I was considering getting a light pollution filter for my 4 inch refractor.
Does anybody have any suggestions on what filter should I get?
Thanks!
Saul.
Does anybody have any suggestions on what filter should I get?
Thanks!
Saul.