I'm getting a Quark and already have a 2" Astronomik 12nm Ha Filter. I'm wondering if I can use this in front of my Quark & 2" diagonal for my 90mm refractor instead of buying a Baader UV/IR block. It seems functionality it would be the same as it rejects all UV & IR:
Anyone know of any gotchas to doing this?
Edited by moshen, 25 May 2019 - 05:00 AM.