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Moon 02.25.2021 Part II

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#1 Borodog

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Posted 26 February 2021 - 02:35 AM

Sony a6000, 10" Dobsonian. Poor seeing. 128 of 200 frames stacked. Reduced 50%.

 

https://cdn.astrobin...fa8c4abe54c.png

 

Any feedback is welcomed.


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#2 Stefano Delmonte

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Posted 26 February 2021 - 05:10 AM

Very beautiful near full Moon, for me you don't need any feedbackwink.gif

 

Ste


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#3 BQ Octantis

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Posted 26 February 2021 - 05:48 AM

PM sent!


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#4 aeroman4907

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Posted 26 February 2021 - 07:24 AM

Mike, that may have been poor seeing but you have produced a very nice image.  Sized so that I can't see any issues.  Well done!

 

Steve


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#5 Borodog

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Posted 26 February 2021 - 12:38 PM

Very beautiful near full Moon, for me you don't need any feedbackwink.gif

 

Ste

Thank you, Stefano!

 

PM sent!

Received and replied! That was a fantastic color treatment of the image; I hope you post it here.

 

Mike, that may have been poor seeing but you have produced a very nice image.  Sized so that I can't see any issues.  Well done!

 

Steve

 

Yay! Thank you, Steve. It means a lot.
 


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#6 BQ Octantis

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Posted 26 February 2021 - 05:14 PM

The data is very high quality, so it's very easy to further process into a mineral moon. And posting a 16-bit PNG is practically an invite to turn this into a "process my data" thread! laugh.gif So I'll go a step further.

 

To start, just past the image on itself as a Color layer and boost the saturation. In Photoshop, a starting point of +70 brings out a lot of detail that's unnoticeable in a less saturated image:

 

(Click for full size.)

gallery_273658_12412_229078.jpg

 

At this brightness and contrast, the dynamic range for color variations is compressed. So to really make the detail "pop"—particularly in the mare when the moon is nearly full—it helps to lower the brightness and boost the contrast. To do so, I paste in the original as a Luminosity layer and use Curves to find a brightness/contrast combination I like across the histogram:

 

(Click for full size.)

gallery_273658_12412_306025.jpg

 

The nice thing about using separate layers is that I can then simply scroll through the opacity of each to find the color/luminosity combination that I like for the image scale I'm working at.

 

Here's an animated toggle among the three versions to illustrate what that does for the eye.

 

https://www.cloudyni...2412_998888.png

 

When I first did this, I discovered the Lassell crater complex.

 

Hope that's useful…

 

BQ


Edited by BQ Octantis, 26 February 2021 - 05:26 PM.

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#7 Borodog

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Posted 26 February 2021 - 09:28 PM

FANTASTIC!




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