28 Apr
2011
28 Apr
'11
2:14 p.m.
I have two filters that, as far as I can tell, do the same thing. One is an O-III filter, and the other is an UHC filter. Both of these seem like they do the same thing. Can some one help me out in understanding what these are good for, and if both do the same thing? Thanks. ++++++++++++++++++ Troy Davidson, KF7MTE www.istroyworking.com