[tilbrook@rbe.ne (Justin Tilbrook)]

Hi,

Wanted to do two things with the Witch Head.

1. Try out the baader fringe killer, to remove the violet/ magneta from the ster halo's. It works, but does make the background on individual subs a little green.

2. Push my unmodded canon 1100D, I went for twelve minute exposures. As it turned out it was too long without cooling, it was a bugger to process out the noise and gradient. In future I'll stick to my usual 8 minute subs unitl I get the camera modded with cooling.

Anyway, worth a try and I'm reasonably happy with the result cosidering how noisy the image was.

Equipment.

Skywatcher ED80, orion field flattener, baader fringe killer, HEQ pro 5 mount.
Camera, Unmodded canon 1100D.
7 x 12 minute subs, darks, flats and bias frames applied.
Stacked in DSS, median stack, median noise removal.
Processed PS7.

Cheers,

Justin.