Nice one, Peter!
On Tue, Oct 7, 2014 at 3:07 PM, Peter Klein <pklein@xxxxxxxxxxxxx> wrote:
> <https://www.flickr.com/photos/24844563@N04/15285876780/in/photostream/
> lightbox/>
>
> Telescope? I ain't got no steenkin' telescope. This was taken with a
> 1970s-vintage Vivitar 300/5.5 and a Tokina teleconverter on a
> tripod-mounted Oly E-M5, so equivalent full-frame focal length is 1200mm.
> The posted picture is about 64% of the frame by linear measurement, or 41%
> by area.
>
> There was a thin haze in the air, but this being the Pacific Northwest, I
> decided to seize the opportunity of a relatively clear night anyway. The
> original image was a bit soft at 1:1. I extracted the green channel*, ran
> it through Focus Magic, which really brought out the details, then some
> conventional rotation, curves and contrast enhancement.
>
> --Peter, returning to the LEM
>
> * Drastically reduces CA-related softness, and the green channel has 2x
> more pixels than the others. This was visibly more effective than just
> using Capture One's "color fringing" compensation.
> --
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