View Single Post
  #7  
Old 17-09-2020, 07:58 PM
Merlin66's Avatar
Merlin66 (Ken)
Spectroscopy Wizard

Merlin66 is offline
 
Join Date: Oct 2005
Location: St Leonards, Vic
Posts: 7,923
More frames in the stack, the better the SNR.
It really depends on the possible movements (within the target) across the total amount of frames.
Consider a solar prominence.....how much internal movement across 2000 frames vs say 500.
The quality measure is based on the quality of the total frame count- you could have good quality at frame 100 and frame 900 but with different image content.
That's the compromise. I now do my solar in 500 frame videos to minimise the effect.
Reply With Quote