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 DSIc with 5.0S update rate in MaximDL (via QSI relays & APM)
Ha:9 960S un-binned subframes, dark, flat frame, bias calibration and stacking done in MaximDL. Sigma-scaled then wavelet iterative filter applied, and then exponentially stretched. Final levels adjust and slight unsharp mask in Photoshop.
Taken in one session 9-03-2011
Ha is amazing... just incredible how much is out there that you miss with the normal LRGB approach.