9 Apr
2009
9 Apr
'09
11:25 p.m.
I'm going to add a Hydrogen-beta filter to my equipment this season, and am asking for experiences with various brands/sizes. I realize that the list of objects it is useful on is very small; I have used borrowed H-b filters in the past. I only want to purchase one size. 1.25" or 2"? I have my own opinion but would like to read others before I spend my money. TIA!