TMB 80/480 Piggybacked on a 8" Meade LX-90 GPS with standard wedge QSI 583ws with Tele Vue TRF-2008 Focal Reducer spaced at 57mm. Baader LRGBHa Filter set. Tccd -25C.
Autoguided using LX-90 with Meade 3.3 FR and DSIIc with 1.0S update rate in MaximDL (via QSI relays & APM)
Ha:12 960S un-binned subframes, RGB:8 480S 2x2 binned subframes, dark, flat frame, bias calibration and stacking done in MaximDL. Ha frame sigma-scaled, wavelet iterative filter applied, and then gammalog stretched. RGB frames sigma scaled, and K-Sigma noise filter applied. HaRGB image formed in AIP4Win2.2 using the join colours tool. Final levels adjust and slight unsharp mask in Photoshop.
Taken in two sessions RGB 28-09-2011 and Ha 15-10-2011
Notes: re-processed again, correct colour balance this time...