Quote:
Originally Posted by astroron
Rob, I hope you are not suggesting that an O111 filter is any good for galaxy hunting 
Cheers |
For me it is as I suffer from protanopia (missing long-wavelength pigments in my eyes)
i.e. What you colour-normals would describe as red and green does not look red or green and is dark compared to other colours that are actually equally bright.
mainly Nebs though, Veil (NGC6960) (faint middle section) and the Helix (NGC7293) and the Dumbell (M27).