I attach a NGC 7000+IC 5070 astrofoto, with exposures with Moon almost full and narrow-band filters.
Corbera de Llobregat.Observatory Can Margarit. Date: 11-17 - 07-2014.
Telescope: Astrograph APM 107 f:4.9(Reduced with Riccardi reducer-flattener)
Mount: 10 MICRON GM 2000 camera SBIG STL 11000M
Exposures:
H alpha as R.
Or III as G.
S II as B
H-alpha: 12 x 900 sec bin 1.O-III: 9x 900 seg+2 bin 1.S-II: 9 x 900 seg+2 bin 1
Calibrated with darks-flats-.:
CCDStack2 + Photoshop CS6 programs.
Best Regards/ .
José Mundo