ANZAC Day
Go Back   IceInSpace > Beginners Start Here > Beginners Astrophotography
Register FAQ Calendar Today's Posts Search

Reply
 
Thread Tools Rating: Thread Rating: 2 votes, 5.00 average.
  #1  
Old 18-04-2014, 07:39 PM
Astro_Bot's Avatar
Astro_Bot
Registered User

Astro_Bot is offline
 
Join Date: Jun 2012
Location: Brisbane
Posts: 1,605
Mars at 50 ... again

Just goes to show ...

I had a final video lurking from my last session. I'd discarded it because cloud came over and, whilst I picked a gap in the clouds to shoot, I was pretty sure it was/would be affected since cloud occluded the last few seconds. Well, leason learned: stack every video, because that turned out to be the best one!

Taken on 16 Apr 2014, 1434UT. Everything is the same as before, except slightly more aggressive sharpening and a little more post-processing.

Advice welcome. Particularly, as I'm still faffing about with processing, if any of the "master planetary imagers" have some tips, I'm all ears.
Attached Thumbnails
Click for full-size image (Mars_16Apr_2.jpg)
5.4 KB120 views
Reply With Quote
  #2  
Old 19-04-2014, 11:35 PM
Shiraz's Avatar
Shiraz (Ray)
Registered User

Shiraz is offline
 
Join Date: Apr 2010
Location: ardrossan south australia
Posts: 4,918
that's a corker image. not sure that you need any tips - your main limitation is probably the seeing and there is not much that you can do about that.
Looks like you have the other issues - thermal control, exposure, collimation, focusing, processing etc. under control.
Reply With Quote
  #3  
Old 20-04-2014, 03:40 AM
Astro_Bot's Avatar
Astro_Bot
Registered User

Astro_Bot is offline
 
Join Date: Jun 2012
Location: Brisbane
Posts: 1,605
Thanks, Ray. I think it's more blind luck than anything. Still, the vote of confidence is appreciated.

Seeing - yes, definitely need some of that. Also, more aperture, better quality optics, high-speed camera, filter wheel, bigger mount to put it on, observatory ...
Reply With Quote
  #4  
Old 24-04-2014, 05:05 PM
rustigsmed's Avatar
rustigsmed (Russell)
Registered User

rustigsmed is offline
 
Join Date: Mar 2012
Location: Mornington Peninsula, Australia
Posts: 3,950
that is a really great effort.
keep 'em coming!
Reply With Quote
  #5  
Old 24-04-2014, 07:06 PM
Astro_Bot's Avatar
Astro_Bot
Registered User

Astro_Bot is offline
 
Join Date: Jun 2012
Location: Brisbane
Posts: 1,605
Thanks, Russell.
Reply With Quote
  #6  
Old 24-04-2014, 07:40 PM
nebulosity.'s Avatar
nebulosity. (Jo)
Registered User

nebulosity. is offline
 
Join Date: Jul 2013
Location: Cecil Plains QLD
Posts: 1,228
The planetary images you have taken over the last few weeks have been absolutely incredible Astro_Bot!!

Great work with the DSLR, haven't seen many DSLR images as good as these

Jo
Reply With Quote
  #7  
Old 24-04-2014, 09:08 PM
Astro_Bot's Avatar
Astro_Bot
Registered User

Astro_Bot is offline
 
Join Date: Jun 2012
Location: Brisbane
Posts: 1,605
Thanks, Jo. The encouragement is appreciated.

I plan to upgrade the camera when budget allows, but will keep plugging away with the DSLR in the meantime.
Reply With Quote
  #8  
Old 24-04-2014, 10:30 PM
edwardsdj's Avatar
edwardsdj (Doug)
Doug Edwards

edwardsdj is offline
 
Join Date: Sep 2007
Location: Brisbane
Posts: 677
Very nice Mars for OSC. Do you decompose the colour video into separate RGB channels or just process the whole thing in colour?
Reply With Quote
  #9  
Old 24-04-2014, 10:43 PM
Astro_Bot's Avatar
Astro_Bot
Registered User

Astro_Bot is offline
 
Join Date: Jun 2012
Location: Brisbane
Posts: 1,605
Thanks. I don't decompose: I process in colour throughout.

As far as I know, the advantages of a mono camera and RGB filters include being able to focus in each band, as well as sharpening and denoising each band separately (for better results), so I'm looking forward to that. With the DSLR, though, I don't see any point in decomposition - more work than it's worth, I think, assuming I understand it right.
Reply With Quote
  #10  
Old 24-04-2014, 10:55 PM
edwardsdj's Avatar
edwardsdj (Doug)
Doug Edwards

edwardsdj is offline
 
Join Date: Sep 2007
Location: Brisbane
Posts: 677
It is definitely more work to decompose the colour into separate channels. I have found you can get a maybe 20% improvement though this is obviously subjective. The idea is that you can use different wavelet settings on each channel for the best result.

That is a very nice image though. What aperture do you have?
Reply With Quote
  #11  
Old 24-04-2014, 11:38 PM
astronobob's Avatar
astronobob (Bob)
Casual Cosmos Capturer

astronobob is offline
 
Join Date: Jun 2010
Location: Gold Coast SE QLD
Posts: 4,190
Now one understands that quirky similin Avata Astro bot, , Id be stoked with a Mars shot as yours, youve come forward in Leaps & Bounds
Reply With Quote
  #12  
Old 24-04-2014, 11:46 PM
Astro_Bot's Avatar
Astro_Bot
Registered User

Astro_Bot is offline
 
Join Date: Jun 2012
Location: Brisbane
Posts: 1,605
Thanks, Bob. I'm enjoying the learning process.

Doug - If I get the time, I might give that a go. I have a 10" LX200-ACF. For this image I used a 2x Barlow and 2.5x Powermate to give f/50 and a focal length of 12.5m.
Reply With Quote
  #13  
Old 25-04-2014, 11:42 PM
SimmoW's Avatar
SimmoW (SIMON)
Farting Nebulae

SimmoW is offline
 
Join Date: Jan 2014
Location: Tamleugh, Victoria, Australia
Posts: 1,384
Really nice result! Wow, those barlows and PMs are working well. And a fl of 12.5metres!!!!

I'm thinking of trying a 3 Barlow and 5 PM with my new Tak which only has a fl of 430mm, for lunar work. You've convinced me it'll be worth a go!
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 07:50 PM.

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