M35 star cluster, Monkey head and Jellyfish nebulae
This is the same data as previous image processed differently. The previous image took a long time to process because it had dark streaks in the data (walking noise). Reading up on this it was almost certainly the difference in noise of the dark frames with the light frames. This was confusing because the dark frames were made 10 minutes after the light frames. Then it occurred to me that perhaps the camera sensor cooled in those 10 minutes so I decided to remove the first 10 dark frames. This did the trick. Was able to stretch the data a little more and get some more detail.
Modified Nikon D750 (sensor filter removed)
Nikon 70-200mm with TC-14: 280mm
Optlong L-Pro filter, LXD75 mount
50x30" iso1600 shots stacked with DeepSkyStacker, processed in Ps
M35 star cluster, Monkey head and Jellyfish nebulae
This is the same data as previous image processed differently. The previous image took a long time to process because it had dark streaks in the data (walking noise). Reading up on this it was almost certainly the difference in noise of the dark frames with the light frames. This was confusing because the dark frames were made 10 minutes after the light frames. Then it occurred to me that perhaps the camera sensor cooled in those 10 minutes so I decided to remove the first 10 dark frames. This did the trick. Was able to stretch the data a little more and get some more detail.
Modified Nikon D750 (sensor filter removed)
Nikon 70-200mm with TC-14: 280mm
Optlong L-Pro filter, LXD75 mount
50x30" iso1600 shots stacked with DeepSkyStacker, processed in Ps