IC4628
GSO 10" f/4
Ha 20 X 300s
Oiii 19 x 300s
Sii 10 x 300s
focus failure cut out a lot of the Sii - image is a bit spotty and veiny - not sure if more data will fix this - cant see the issue on the small image, but astrobin shows the problem..
full res on astrobin
https://www.astrobin.com/uh25if/