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[OM] IMG: Gibbous moon

Subject: [OM] IMG: Gibbous moon
From: Peter Klein <pklein@xxxxxxxxxxxxx>
Date: Tue, 07 Oct 2014 15:07:50 -0700
<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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