Thread: Qhy23 ccd
View Single Post
  #7  
Old 05-10-2017, 08:39 PM
gregbradley's Avatar
gregbradley
Registered User

gregbradley is offline
 
Join Date: Feb 2006
Location: Sydney
Posts: 17,877
Quote:
Originally Posted by Camelopardalis View Post
I use a ZWO ASI1600 mono with my Esprit 100 and the combo, at 1.41”/pixel, seems to make the most of the seeing, as it is in SE QLD

You can always dither with a sufficient number of subs.

Given the low read noise of the Sony sensors the shallow wells aren’t such a big issue as you can take shorter exposures and still conquer the read noise, but like Greg says, expect stars such as Alnitak to have a ball if they’re in the shot.

Its early days but it seems these types of cameras are likely to take over within a few years.

Now if only Sony would release its 36mp or 42.4 backside illuminated full frame sensors from the A7r and A7R2 (the 36mp one is also used in the Nikon D800, D810 and the Pentax K1). That would be something.

The 42mp backside illuminated sensor is still the highest rated sensor in digital cameras and at higher ISO has something like .3 electron read noise - crazy numbers.
QE is up around 65-70% despite a Bayer matrix, imagine what the mono version would have - 90%+.

Greg.
Reply With Quote