Archived posting to the Leica Users Group, 2014/10/07
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]<https://www.flickr.com/photos/24844563 at 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.