The Bubble Nebula in Cassiopeia

Optics/Mount: CPC1100 with f6.3 Celestron reducer on a Milburn Wedge. Dec antibacklash set to 27/27. PEC on.
Camera: SXVR-H694
Exposure: 52 x 5 minutes Ha, 34 x 5 minutes OIII, 41 x 5 minutes SII, all bin 2x2
Filters: Astronomik 6nm Ha and 12nm OIII, Astrodon 5nm SII
Date: September 10 – October 4, 2012
Conditions: Seeing generally good, transparency average.
Image scale at capture: 0.6 arcsecs/pixel = f/5.7
Imaging automation and capture: Sequence Generator Pro

Guiding Hardware: Flea 3, Taurus Tracker III off axis guider. Guiding scale 0.72 arcsec/pixel. 1 second guide exposures.
Guiding Software: PHD. Aggressiveness 80, Hysteresis 0, Minimum Move 0.9, Max RA 1000, Max Dec 600. Dec set to auto/resist switching. Dithering set to Extreme with Settle < 1.2. Calibration steps 8 x 9.
Guiding performance: HFR of subs ~1.5 arc seconds
Focusing: Rigel Systems GCUSB/nStep on stock C11 focuser
Light pollution: Bortle 8 (white zone, NELM about mag 4.5)
Scale of presentation: 1.2 arcsecs/pixel (50%)
Processing: Bad pixel map in Nebulosity 2, stacked with Deep Sky Stacker, post-processed with Photoshop CS2.