Hi Bob,
Good to hear from you.?
I'm using Antlia's dual narrow band filter with a OSC camera.? The bandwidth's are 5nm for Ha and Oiii.? I use the red channel as Ha, combine the blue and green channel for Oiii.? A third channel is synthesized with some pixel math.? The foraxx pallet and the pixel math is explained in the link below.? I do find it more interesting than hubble and so far all of you agree.
My first results with the dual narrow band filter were disappointing.? I was about to sell my OSC gear fund a mono setup.? With some practice and longer integration times the results have really improved and I'm happy with OSC for narrow band imaging.? Oscar's shot of the quintet did have me thinking about mono again..
Greg
