Astroart Forum

I have pre-processed a few hundred images with an exposure of 5 seconds. But when I stack them, the final image is very grained (left image). Doing the same with Deep Sky Stacker produces a much better result (right image). I use default settings in both programs. I wonder if there are any settings ...

Have repeated once again.
Luminance without dither and Green with dither.
And the problem remains.
I'm confused..
After making a new set of green frames i see that the solution is to make a lot more coloured images than luminance.
2 hours of green images are looking better

Yes I am dithering, after the green filter I have switched it on the red filted, but same results. Using PHD2. Also have about 30 dark frames. Maybe it's just that "colored" images needs more files. In this case I have made 60 images of 60 seconds (well it is one hour..!). It's strange because with ...

I am capturing LRGB with QHY174M Cooled camera.
Stacking Luminance files looks good, but
after stacking RGB images I notice some horizontal stripes.

Hello. I have just finished my first goto and center with plate solve session on AstroArt 7 and I am admired how good it works. My instrumentation: Skywatcher EQ6-R mount, Celestron 11 and TS RC6" syde-by-side on the mount QHY174 Mono Cooled camera Pegasus MotoFocuser AltairAstro GP130M guide camera...