View Single Post
  #16  
Old 03-02-2016, 03:55 PM
Atmos's Avatar
Atmos (Colin)
Ultimate Noob

Atmos is offline
 
Join Date: Aug 2011
Location: Melbourne
Posts: 6,984
Quote:
Originally Posted by RickS View Post
The difference in read noise between the KAF-8300 and the ICX-814 is not as great as it seems. Scaling by pixel area, 8.5e- for the KAF-8300 is equivalent to about 4e- for the ICX-814.

The ICX-814 does beat the KAF-8300 on QE and dark noise, of course, but the tiny little pixels will only suit a short focal length scope.

Cheers,
Rick.
As the read noise gets squared, taking the QE differences in Ha and the pixel size, it equates to the ICX814 being comparable at 6.5e-. So even if the ICX814 were running at 4e- it would still have ~2.6x exposures to be read noise limited. I am working at pretty short focal lengths, not super short.
Reply With Quote