A dusty Iris Nebula captured from DSW in New Mexico. I found this one quite difficult to process. Not sure I'm finished with it yet
Scope: FSQ-106ED
Mount: Paramount ME
Camera: QSI683
Filters: Astrodon Gen II LRGB, 5nm Ha, OII, SII (1.25")
Guiding: QSI OAG + Lodestar
Image scale: 2.094 arcsec/pixel
Exposures: 37x900s L, 16x900s R, 17x900s G, 15x900s B
Processing: PixInsight
High res on Astrobin:
http://www.astrobin.com/214316/
Cheers,
Rick.