What settings would you suggest for many very short exposures?

[ggbutcher (Glenn Butcher)]

Took a bit to find it, recalled a thread back in 2020 about a DSO image from 18,000 1sec subs:

M63 with 16" Dobson , A7s and 19000 images

Hello, Please find my M63 image processed with latest Siril version, stacked 18000 full frame RAW with A7s on Orion Dobson XX16g at 1800mm focal length: [m63_stack_18000_p59_nocrop] Optics and sensor: Telescope: Dobson Orionx XX16g 16" with 1800mm focal length and coma corrector Capture: 19000 full frame RAW of 1 second duration with Sony A7s at 6400 ISO Siril processing: FITS compression: Used 32Bits float Rice FITS compression with a quantification factor of 32: the 18800 full frame R…