|
Nathan you have a great image of M83 the background noise is a little high but it can be removed. I don't know what the processes are in PixInsight but the fundamentals should be the same. When removing noise it's sometimes better to do a pass on each channel rather than on all three. Do you use masks to isolate star and DSO data? They help protect the good signal from the bad. Personally I think it's fine to have some background noise in an image because it looks more natural. Especially when it's a DSLR image as it's a characteristic of the technology, just like film grain is to SLR. I too like Martin find about 4-8 hours of data to be the sweet spot depending on sky quality temperature e.t.c. so I wouldn't go to crazy on the exposure time with a DSLR.
|