Hi,
I spent a few hours processing my Luminance M51, see below: -
M51 32 out of 36 2 min 2x2 subs Adv stack,
40 2 minute median stack darks subtracted from flats,
Flat Frame, blurr flat created and subtracted using 20 2 second flats and 16 2 second flat darks, 1 pixel gusian blurr applied
All put to gether in AIP, and then a Gausiaan and Poission noise filter applied after the image was gradient corrected.
(http://www.deep-sky-photography.com/Trash/M51-20070418-OAS-Final.jpg)
dialogues in AIP
(http://www.deep-sky-photography.com/Trash/AIP.jpg)
Wow! Very nice Chris. Loads of detail there.