#1  
Old 26-04-2013, 06:31 AM
LewisM's Avatar
LewisM
Novichok test rabbit

LewisM is offline
 
Join Date: Aug 2012
Location: Somewhere in the cosmos...
Posts: 9,316
NB with a OSC CCD

Never done NB imaging of any quality before, so seeing we have full moon and PERFECT skies, want to add some H-a and OIII to some of my images.

I have a Starlight Xpress SXVR-M25C one shot colour CCD. If I do a run of NB images, what is the preferred way to integrate them into the OSC results - do I stack them with the colour FITS, or do I stack seperately, then restack, or seperately and add as a layer in Photoshop, or?

A little confused on the matter, and want to get to the bottom of it. Appreciate the help.Now need to buy an SII filter too
Reply With Quote
  #2  
Old 26-04-2013, 12:15 PM
Shiraz's Avatar
Shiraz (Ray)
Registered User

Shiraz is offline
 
Join Date: Apr 2010
Location: ardrossan south australia
Posts: 4,787
if not already read, this is worth a look.
http://www.stark-labs.com/craig/reso...rRecon_API.pdf
Reply With Quote
  #3  
Old 26-04-2013, 01:31 PM
LewisM's Avatar
LewisM
Novichok test rabbit

LewisM is offline
 
Join Date: Aug 2012
Location: Somewhere in the cosmos...
Posts: 9,316
Thanks Ray - VERY helpful!
Reply With Quote
  #4  
Old 26-04-2013, 01:37 PM
multiweb's Avatar
multiweb (Marc)
ze frogginator

multiweb is offline
 
Join Date: Oct 2007
Location: Hinchinbrook
Posts: 18,138
I think it's best to think of your OSC as a mono when doing NB. So you calibrate your subs with the bayer matrix intact. Then debayer in separate directories to Red, Green then Blue. Stack and combine each channel separately then do a final colour combine to get your palette.

So Ha and Sii will go in your red pixels (1/4). Oiii is a turquoise colour. You'll get a lot in the blue pixels and some in the green. Because there's 2 greens for one blue it's likely the green will be smoother than the blue.

Having said that you're best to use a mono for NB. An OSC will lose a lot of resolution.
Reply With Quote
Reply

Bookmarks

Thread Tools
Rate This Thread
Rate This Thread:

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 07:56 PM.

Powered by vBulletin Version 3.8.7 | Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
Advertisement
OzScopes Authorised Dealer
Advertisement
Meade Australia
Advertisement
Bintel
Advertisement
Celestron Australia
Advertisement
SkyWatcher Australia
Advertisement
Lunatico Astronomical
Advertisement
NexDome Observatories
Advertisement
Astronomy and Electronics Centre
Advertisement