M 101, three hours, April 2009
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Improved everything for this try at a favorite subject. Most of the flexure is gone, and the sky is much better.
Eighteen 10-minute subs acquired on April 18th, 2009 with the 12 inch Meade Classic at f6.8. Acquired, calibrated, and stacked in
Nebulosity 2.1.1, final color and sharpening in Photoshop CS3.

guided through the Vixen ED80 (synta) , DSI pro I, and PHD via Shoestring GPUSB adapter

enjoy