Night Sky Shooting / Astrophotography on X-T2 : ETTR? ISO 1600?

JakeInChicago wrote:

Sebastien Guyader wrote:

By the the way I just tried Sequator in Linux (using wine) and it works great! I found it best for me to process raw files in RawTherapee (adjusting white balance, lens distortion, vignetting, choice of demosaicing algorithm) and let Sequator stack 16-bit Tiff files (using "accumulation" for composition computing options). Then I save the result as linear Tiff which I process in RawTherapee for final result.

I just took a look at Sequator to try to process a milky way shot from an Oregon visit last year and the results appear to be pretty incredible.

This was the my base image straight out of camera, 20s, ISO 1600, probably f/2 on the Rokinon 12 f/2.

Here is Sequator's results using 2 additional Star exposures. Note that I was on a little table top tripod when I shot these and my framing appears to have shifted slightly; I can only assume what is going on in the bottom part of the image is part of the "Reduce Distortion Effects: Complex" setting I chose, but I don't have time to mess around further with this tonight.

You can clearly see how my framing shifted a bit on the right hand side of the frame.

That's one heck of a starting point! That's with Star images: Unify exposure checked, Align stars, Accumulation, Sky region: Partial, Auto brightness On, Reduce Distortion Effects: Complex, Reduce Light pollution, Uneven.

Might as well turn this up to 11 while we're here. Slapped a preset on it in On1 and I'm calling it a night.

I can't wait to see what you guys produce when on proper tripods without the frame shifting between stacking inputs.

Jake

There is an option in Sequator to mask the landscape and it does not do that blurring and stacks them accurately on top of each other with no motion blur. I use that all the time and it works well.

You are going to get motion blur without that setting.

Greg.