I tried some night time shots this week and ended up stacking 4 or 5 raw files together to benefit from noise reduction. I then flattened that image and applied multiple adjustment layers till I got the result I was after but of course the file was quite large (that's why I can't attach it here}. My problem is when I flatten that image a lot of the noise comes back into the image. Has anyone else experienced this? Could it be a workflow problem?
Thanks