Thread: M8
View Single Post
  #12  
Old 07-07-2021, 07:48 AM
gregbradley's Avatar
gregbradley
Registered User

gregbradley is offline
 
Join Date: Feb 2006
Location: Sydney
Posts: 18,185
Quote:
Originally Posted by alpal View Post
Hi Greg,
I am not convinced about QHY-600 star colors yet although
this QHY-600 pic seems to be quite strong in that regard:
https://www.flickr.com/photos/terryh...n/photostream/




cheers
Allan

I agree, I noticed a while ago that you could instantly tell if an image taken used a CCD or CMOS by the saturation of the star colours. I posted that on CN and got attacked with others saying its all about the processing. So not everyone notices it. Nothing new in that. Not my experience so far. You do need to pay special attention to colours in stars during acquisition and processing.

My CCDs though you don't really need to worry about it. Not sure why the star colours tend to be weaker. Perhaps a consequence of smaller pixels and coloured filters attenuating the light further so best suited to larger pixels.

Greg.
Reply With Quote