Go Back   IceInSpace > Images > Deep Space
Register FAQ Calendar Today's Posts Search

Reply
 
Thread Tools Rate Thread
  #1  
Old 07-04-2009, 08:00 AM
Paramount
Registered User

Paramount is offline
 
Join Date: Apr 2008
Location: Harrogate UK
Posts: 341
M 82 reprocessed due to bad weather

Hi all
Sometimes bad weather can be a blessing in disguise as it allows a bit of catch up time in the processing department. I posted this image here and then tweaked it a bit but following some suggestions from Neil Fleming from http://www.flemingastrophotography.com I had a complete reprocess at it using colour combining in Photoshop CS2 (which I have never tried before), rather than combining as a straight forward LRGB image which I did previously using Maxim DL he suggested blending 66-100% Ha with the Red channel and 15-20% Ha with the Blue channel and then processing the resulting channels along with the Green channel as a normal RGB image. I chose 100% Ha with the Red channel and 20% Ha with the Blue channel using lighten as the blending mode for the Red channel and normal as the blending mode for the Blue channel. I am much happier with the end result as the red jets associated with this subject are more evident. Just as a reminder of the details
20x5 minutes for Ha
20x2 minutes each for RGB
All unguided with the Takahashi BRC-250 on a Paramount ME with Starlight Xpress H9 and Astronomik filters
Simple auto dark subtraction inMaxim DL, no flats or bias frames used. The original image, tweaked image and this reprocessed image can be seen together for comparison on my website http://www.imagingtheheavens.co.uk

Thanks for looking yet again
Best wishes
Gordon

http://www.imagingtheheavens.co.uk/U...S/M82HaRGB.jpg
Reply With Quote
  #2  
Old 07-04-2009, 09:57 AM
Tamtarn's Avatar
Tamtarn
Barb and David

Tamtarn is offline
 
Join Date: May 2006
Location: Warragul. Victoria.
Posts: 2,293
Your reprocess has certainly made a big difference Gordon Well done
Reply With Quote
  #3  
Old 07-04-2009, 12:32 PM
jase (Jason)
Registered User

jase is offline
 
Join Date: Sep 2006
Location: Melbourne, Victoria
Posts: 3,916
Very enjoyable image Gordon. Don't think you'll get much more from the data. Sounds like you've worked it over for sometime. Its now time to collect more - and with longer subs
Reply With Quote
  #4  
Old 08-04-2009, 03:25 PM
atalas's Avatar
atalas
Registered User

atalas is offline
 
Join Date: Mar 2005
Location: Sydney
Posts: 5,148
Looking better Gordon.
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 11:01 AM.

Powered by vBulletin Version 3.8.7 | Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Advertisement
Bintel
Advertisement