[tornado33]

Hi all
A bit late for submission to last months imaging challenge, but I had a go at reprocessing an old Helix image (7x15 mins ISO 400). I used the masking technique to bring out the faint northeast arc and inner detail yet preserve the bright parts.
10 inch f5.6 scope, off axis hand guided in the wee morning hours, modded 350D, UHC-S filter and MPCC.
Sattelite has gone through one of the exposures.
Scott