Here are a couple of images through the tak..
DF subtracted other than a crap flat field on IC 434 images are native.
IC 434 - Ha 900 R 900 G600 B 650
M42 R 900 G600 B 650
http://www.perthfalcons.com.au/index...=post&id=28675
http://www.perthfalcons.com.au/index...=post&id=28674