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This is data combined from 2010 with the Vixen ED103s and 2015 with the AstroTech 65EDQ. 5 hours 30 minutes total. There is some chromatic aberration issues from the Vixen, and the crop is because the field of view of the Vixen can't get the whole galaxy in, but overall I think it's an improvement on both the 2011 shot and the 2015 shot.
Scope: AstroTech AT65EDQ, Vixen ED103S
Mount: Orion Atlas EQ-G with GoTo
Guiding: Meade DSI Pro and PHD Guiding
Guide Scope: ATM 60mm f/4.1 Achromat
Camera: Canon EOS 1000D (Modified)
Special Settings: None
Exposure: 5.5 hours (66 x 300)
Processing Software: Acquired in Nebulosity, Calibration and Stacking in PixInsight, Levels/Curves/Enhancements in PixInsight & Photoshop CS5
Support Files: 30 darks, 40 flats, 40 bias