NGC 6960, 6974, 6979, 6992, 6995 & IC 1340: The Veil Nebula in Cygnus (SNR G074.0-08.5). Taken June
23, July 12 and July 13, 2007 with a DSI Pro II and Outback Cooler with a Pentax SMC-DFA 100 mm
lens. H-alpha subframes were 6 min at f2.8, OIII subframes were 8 min at f2.8 and f3.5 and G
subframes were 3 min at f2.8. The channels were combined to get an RGB image in the following ratios
Red = Ha (216 min): Green = G (48 min)*15% + OIII (240 min) * 85% : Blue = OIII (240 min)*85% +
Ha(216 min)*15%. Final color balance was achieved via numerically scaled channels. Captured with
Envisage, calibrated and sigma combined in Iris with other processing using FITZ, PixInsight LE and
Photoshop CS. North is up.