Hi all , I was wondering if someone could tell me what my options are filter wise. I have bought a starshoot 5 filter wheel. I have an Orion LRGB filter set , a televue Nebustar filter, and a Lumicon Hydrogen Alpha filter. I wanted to load the Nebustar and Hydrogen alpha, along with the RGB`s . I only have 5 spots , so I was wondering if I could use the Hydrogen alpha in place of the Luminance , and also , can the Nebustar be useful in Imaging or is it really just for visual use ? Thanks to all