maxl93•1d ago

Serious question, has ditching my old stacking method cleared up anyone else's noise issues?

Switching to a new stacking technique cut the grain from my Milky Way shots... the difference is stark.

3 comments

3 Comments

Switching stacking methods made a huge difference for me too. I used to deal with constant grain in my night sky photos. Moving to a sigma clip stack cut the noise by more than half. The images now look clean without losing detail. It's one of the best changes I've made to my workflow.

xena3161d ago

That noise cut sounds amazing! Did you find the default sigma settings worked right away for keeping detail, or did you have to play with them like Derek mentioned? I'm always worried about smoothing out the faint stuff.

derek_gibson1d ago

Interesting point, @wren115. Something people overlook is how sigma clip can shift colors in nebulae if your calibration frames are off. I tweaked the sigma value to 2.5 and it kept the reds from blowing out while still killing noise. That extra step saved a bunch of my shots from looking washed out.