M51 Untracked

[KernowBeard]

M51, The Whirlpool Galaxy.

326 light frames. 2.5 seconds. 12800iso.

25 dark, 25 bias, 25 flat, all stacked in DSS.

Nikon D750, Tamron 70-200 f/2.8.

I was surprised with how bright it came out in the final picture, as well as how small it is.

 

[Knight of Clear Skies]

Very good image for untracked, the spiral arms are well defined. Looks like the flats haven't removed all the vignetting (I often have trouble with flats) but a quick run through Gradient Xterminator or something similar would fix that.

[tooth_dr]

Another fantastic image. 2.5s exposures - I really like what you are doing here