I'm into Astrophotography lately.

I'm using a Canon 550D with kit-lens.

1) I found there was a displacement of stars (obviously) in the picture that I stacked. How to solve this as I don't use a Star-tracker/telescope 2) Also, is it necessary to use Deep-Sky-Stacker while taking pictures of Milkyway? Is there a good tutorial to follow?

Also, what will the correct exposure settings? I read somewhere about 500/focal-length calculations that I couldn't comprehend.

Thanks for your time.

marked as duplicate by drfrogsplat, Esa Paulasto, Michael C, MikeW, mattdm Feb 27 '14 at 5:47

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