Best amount of images for stacking

Started 5 months ago | Questions thread
Alen K
Alen K Senior Member • Posts: 1,550
Re: Best amount of images for stacking

Alen K wrote:

EricTheAstroJunkie wrote:

Alen K wrote:

EricTheAstroJunkie wrote:

When it comes to nightscape/ultra wide angle stuff I don't even bother stacking, just single tracked exposures that are long enough for good SNR without clipping highlights.

Not hard to do in Bortle 1 or 2. Much tougher in Bortle 4. I know: I should move closer to someplace really dark!

It's all about positioning and post processing, here are a bunch of images I've shot from Bortle 4/5 skies, I position myself so I'm shooting away from the most intense sources of light pollution and do a lot of background subtraction in post processing.

Speaking of background subtraction, do you personally use PI for that (ABE, DBE) or do it another way? Have you tried GraxPert? And are you doing background subtraction on each panel first before stitching or on the stitched composite? I can think of advantages either way but one is probably better than the other in practice.

Trade secrets?

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