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

shiftyonthemic wrote:

Sebastien Guyader wrote:

In his tutorial, vegetaleb says to set the camera to save raw files, not joegj so DR, Film Sim, tone settings won't matter, everything is done in processing, either after stacking if the stacking program accepts RAF files like Sequator, or before if you need to feed the program with Tiff files (in this case you can minimally process the raw files for lens distribution for example, and adjust the white balance if it is off).

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.

Histogram is based off the jpeg preview baked in the RAW. This is why I am asking re: choosing a flatter film sim when shooting in the field.

I haven't done any dark sky shooting (hard to do in NYC) to test whether the DR100/DR200/DR400 affects the RAW. Many mixed opinions whether it does or doesn't from the threads I've gone through.

I will try Sequator in Linux after the trip.

I usually used Velvia when doing Fuji nightscapes just to get a boost to the colour. But you can get that anyway in post processing.

All those items you mentioned are simply not important, just 30 seconds, wide angle lens, wide open and ISO6400 RAW.

Its a physical thing. You need to capture photons and that takes time, hence stacking.

Pushing hard an image that never got many photons in the first place no matter what settings never looks that great.

Gotta catch the photons first.

Greg.