Go Back   IceInSpace > Equipment > Astrophotography and Imaging Equipment and Discussions
Register FAQ Calendar Today's Posts Search

Reply
 
Thread Tools Rate Thread
  #1  
Old 11-10-2017, 12:46 PM
billdan's Avatar
billdan (Bill)
Registered User

billdan is offline
 
Join Date: Mar 2012
Location: Narangba, SE QLD
Posts: 1,551
Comparison of QHY168 Mono vs QHY168 Colour

One of QHY's Beta testers has done some comparisons with QE comparing the colour version and the debayered version. This was to test what the loss of QE is with the microlens removed.

He found the Blue channel lost 12% in sensitivity, Green lost 6%, Red increased by 32% and Luminescence increased by a whopping 60%.

Looking good for when they go into full production.

http://qhyccd.com/bbs/index.php?topic=6127.0

Cheers
Bill
Reply With Quote
  #2  
Old 12-10-2017, 02:13 PM
Camelopardalis's Avatar
Camelopardalis (Dunk)
Drifting from the pole

Camelopardalis is offline
 
Join Date: Feb 2013
Location: Brisbane
Posts: 5,460
Interesting, especially that the red channel increased after removal of the micro lenses. Maybe the Bayer filter had a strong IR-cut?

The QHY247 with the 24MP IMX193 would be more appealing to me personally.
Reply With Quote
  #3  
Old 12-10-2017, 02:30 PM
RickS's Avatar
RickS (Rick)
PI cult recruiter

RickS is offline
 
Join Date: Apr 2010
Location: Brisbane
Posts: 10,584
I read the document a couple of times and still wasn't completely clear on the test methodology.
Reply With Quote
  #4  
Old 12-10-2017, 02:32 PM
Camelopardalis's Avatar
Camelopardalis (Dunk)
Drifting from the pole

Camelopardalis is offline
 
Join Date: Feb 2013
Location: Brisbane
Posts: 5,460
I reckon you could have got away with air quotes there Rick

Sounds to me like they stuck a filter wheel with the same filters on in front of both the colour and debayered sensors and just measured...
Reply With Quote
  #5  
Old 12-10-2017, 03:57 PM
RickS's Avatar
RickS (Rick)
PI cult recruiter

RickS is offline
 
Join Date: Apr 2010
Location: Brisbane
Posts: 10,584
Sorry, Dunk. I'm old school and don't do air quotes

Quote:
Originally Posted by Camelopardalis View Post
Sounds to me like they stuck a filter wheel with the same filters on in front of both the colour and debayered sensors and just measured...
That's what I thought too, so not sure what that proves...
Reply With Quote
  #6  
Old 12-10-2017, 08:04 PM
billdan's Avatar
billdan (Bill)
Registered User

billdan is offline
 
Join Date: Mar 2012
Location: Narangba, SE QLD
Posts: 1,551
I also posted this on SGL as well and the response was his methodology is flawed and doesn't really prove anything.
I guess we will have to wait until he does some testing through his telescope before an opinion can be formed.
Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT +10. The time is now 10:02 AM.

Powered by vBulletin Version 3.8.7 | Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Advertisement
Bintel
Advertisement