updated 06:00 pm EDT, Thu April 26, 2012
Release Candidate 2 available on Adobe Labs
Adobe is in the final stages of testing the forthcoming Lightroom 4.1 update, offering Release Candidate 2 on its Adobe Labs website for free download. The self-expiring test release corrects issues reported from the first release candidate and initial 4.1 test release. The company took the opportunity to add further RAW file format support for some additional cameras, new controls to correct color fringing and support for HDR files.
Color fringing is an chromatic aberration seen on many cameras where the lens has difficulty focusing all colors to the same convergence point. Software controls such as those added to Lightroom can help minimize the effect. The update as also added support for the Canon EOS 60Da, the Olypus OM-D E-M5, the Sony Alpha NEX-VG20 and Samsung NX1000 cameras.
The program is available for both Mac and Windows. No official release date for the final 4.1 version has been announced. Testers should report any issues to Adobe's feedback forums.