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

Reply
 
Thread Tools Rate Thread
  #1  
Old 21-07-2016, 08:40 PM
thegableguy's Avatar
thegableguy (Chris)
Registered User

thegableguy is offline
 
Join Date: Feb 2016
Location: NSW Central Coast, Australia
Posts: 337
Moon composite with ED80

Been over a month since imaging, but couldn't go without any longer... so aimed it at the Moon two nights ago, on the first clear night I'd been home for in weeks.

Orion ED80 on NEQ6 unguided. One 2x Barlow, one 5x Barlow. Shot with Nikon D3300. Four 1-min videos, stacked using the best 500 frames.

Exported them in Streamclip, stacked & edited wavelets in Reistax, stitched them together in Photoshop and did a final touch-up (mainly colour correction) in Lightroom.

Suggestions for improvement welcome.
Attached Thumbnails
Click for full-size image (Pano moon.jpg)
200.8 KB155 views
Reply With Quote
  #2  
Old 21-07-2016, 11:08 PM
Camelopardalis's Avatar
Camelopardalis (Dunk)
Drifting from the pole

Camelopardalis is offline
 
Join Date: Feb 2013
Location: Brisbane
Posts: 5,478
Nice craters and contrast Chris just need a few more panels next
Reply With Quote
  #3  
Old 21-07-2016, 11:16 PM
Atmos's Avatar
Atmos (Colin)
Ultimate Noob

Atmos is offline
 
Join Date: Aug 2011
Location: Melbourne
Posts: 7,013
Looking really good Chris! A whole moon like that would be brilliant!
Reply With Quote
  #4  
Old 25-07-2016, 10:33 AM
thegableguy's Avatar
thegableguy (Chris)
Registered User

thegableguy is offline
 
Join Date: Feb 2016
Location: NSW Central Coast, Australia
Posts: 337
Thanks guys. Whole moon would take more patience than I think the result would be worth... certainly more than I have! I'm happy with it, though a little disappointed it's not much better than single shots I took through my 8" Dob a while back.

Is anyone shooting planets using 4K video yet? Would be interested to see the results. The new Nikon D500 looks like it might be pretty spectacular in the right settings...
Reply With Quote
  #5  
Old 25-07-2016, 06:39 PM
Camelopardalis's Avatar
Camelopardalis (Dunk)
Drifting from the pole

Camelopardalis is offline
 
Join Date: Feb 2013
Location: Brisbane
Posts: 5,478
The problem with 4K video is that it uses lossy compression, at least on most consumer cameras...
Reply With Quote
  #6  
Old 25-07-2016, 11:06 PM
Stonius's Avatar
Stonius (Markus)
Registered User

Stonius is offline
 
Join Date: Mar 2015
Location: Melbourne
Posts: 1,508
It's a lovely image, Chris. Well composed and captured. I think you could get some more detail out of the brighter parts of the moon though. I hope you don't mind, but for my own curiosity, I downloaded the image and had a play with it. I hope that's not rude of me; I don't know what the etiquette is about such things. Maybe I've gone too far - it may not be to everyone's taste. Maybe it looks a little more 'fake' and less true to what you would actually see through the eyepiece.

Let me explain how I butchered your lovely image; I often find in my own photos that the moon has a lot of contrast between the highlands and the mares. When setting the contrast curves for the moon as a whole, I often find that I either get highlands that are a little too light, but if I darken them, the mares become unnaturally dark. Typically I will separate out the mares and the highlands in two separate masks so I can apply separate contrast curves to each.

So, when I had a play with your image, I decided to see if I could tweak a little more contrast out of the lighter portions of the image. In photoshop I used the wand, or 'select color range' to select only the brighter highlands and created a mask with a little feathering. Then I added some more contrast in 'curves'.

After that, I collapsed the layers and did the 'Highpass trick' to the whole image; Copy the layer on top of itself. Set the top layer to 'overlay'. Select Filter/other/Highpass. I used 1px as the threshold. The effect was a little strong, esp. around the limb, so I erased the limb area from the top layer so you see through to the original layer beneath in those sections. Then I changed the opacity of the highpass layer to 50% to lessen the overall strength of the effect.

So that's what I did. Again, I apologise for mangling one of your images, but I think it coaxes out a little more detail. But again, possibly it's a little unnatural. Perhaps others will have more suggestions on how to deal with the contrast issue between highlands / lowlands in lunar images?

Cheers

Markus
Attached Thumbnails
Click for full-size image (Pano moon01.jpg)
212.4 KB55 views
Reply With Quote
  #7  
Old 27-07-2016, 09:01 AM
thegableguy's Avatar
thegableguy (Chris)
Registered User

thegableguy is offline
 
Join Date: Feb 2016
Location: NSW Central Coast, Australia
Posts: 337
I don't mind at all! Yours is definitely an improvement, and would be considerably more so if you'd had access to the original pre-upload, less-compressed version.

I do know how to do those things in Photoshop but, well, I'm lazy and couldn't be bothered even trying... didn't think it would be worth the effort. You may have cured me of my laziness; it's clearly worth it! Thanks for showing me.
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 12:59 AM.

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