The Letronnes

[Luke]

It was good to get back to some lunar processing, the first one up was Letronne... All images were captured in mono and I added false colour

From the seventh image (Plato) down, I started using Lucy Richardson deconvolution for sharpening, instead of Smart Sharpen, to get some experience using the settings, the seeing was not that brill for this session. Was good to get the SCT out at last, even if the 2x barlow stayed in the case!

Schiller, fourth down, came out quite misty. I wonder if I took that capture when my SCT dewed/frosted up? I had turned the heat strip down a bit just in case it was contributing to the unstable image. I blame Jarrod for the white inverted Copernicus, as I really liked his inverted version

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3rd November, 2014

Celestron Edge 8", Grasshopper 3 camera (ICX687), red filter

[Ruud]

Wonderful. Each of them is special in its own way.

Thanks for a beautiful gallery.

[sooot]

Great shots

[Twisted Lip]

They look fantastic Luke, every one is great. Looks like the Lucy Richardson really has the edge when it comes to sharpening.

Will

[CATLUC]

Hello

Very nice images good job.

Clear sky.

Luc

[Pete Presland]

some very nice detail in that collection of images.

[Luke]

Thanks, Ruud, Craig, Will, Luc and Pete

I hope it won't be so long until the next time I can get the SCT out again!

[Blazar]

Nicely done Luke. Really like the Vallis Alpes....

[Stargazer33]

Very nice images Luke. Love that inverted Copernicus too!

[carastro]

Lovely collection of images Luke.

Carole 

[JB80]

All of them excellent Luke!

As I mentioned elsewhere I like your take on Copernicus, it has a real ivory look to it.

Out of curiosity how harsh were you with the LR sharpening, di you need to use it as much as you would for Ha solar stuff or did you scale the settings back a bit?

[Luke]

Thanks, Steve, Bryan, Carole and Jarrod!

Jarrod, I think I will tinker some more when I do my next solar shots and see if anything I have been trying with lunar works with my solar efforts (well, I have to finish off my first h-alpha animation before that,  using Smart Sharpen for speed as I've spent too long on it already!).

I am still learning but here's what I used most recently with Astra Image 4, I think. If anyone has any tips/pointers, that would be great!

So I used fewer iterations with lunar, but switched to the Sharpening version and used quite a high strength? The Cauchy method seemed to really make the lunar features "pop".

SOLAR

Menu pick: "Process / Deconvolution / Deconvolution for Deblurring"
Decon Method: Lucy Richardson
Blur Kernel: Gaussian
Iterations: 250
Blur Kernel Size: 1.34

Then a second dose, same settings but with Blur Kernel Size of about 0.62


LUNAR

Menu pick: "Process / Deconvolution / Deconvolution for Sharpening"
Decon Method: Lucy Richardson
Blur Kernel: Gaussian
Iterations: 45
Blur Kernel Size: 1.5
Decon Strength: 3.41

Then I did a 0.7x resize in Photoshop (maybe seeing or my focus was not good enough? Sometimes I also downsize solar to about 0.7x, sometimes I keep it as 1.0x...)

Then a second dose of decon:

Menu pick: "Process / Deconvolution / Deconvolution for Sharpening"
Decon Method: Lucy Richardson
Blur Kernel: Cauchy
Iterations: 10
Blur Kernel Size: 0.44
Decon Strength: 1.08