Hi all,
Just a quick question.
I'm looking to get a UHC filter for my 5" reflector.
I thought I had decided to get an Astronomik UHC from Bintel, but have recently read in past threads that the DGM NPB filters are highly thought of.
I can get my hands on a second hand one and was wondering if it is too narrow a bandwidth for a 5" reflector.
in advance to any helper.
Molly.