The Photoshop Lightroom 4 Software For Mac from Adobe is a complete photo management and editing suite for Mac OS X and Windows. Ideal for enthusiasts and professionals alike, Lightroom takes a nondestructive approach to photo editing, leaving the original files unmolested. All your adjustments and edits are stored in a database and applied to an image on the fly, so that you'll always be able to go back to the original image. This enables you to execute as many post-processing adjustments on a photo as you'd like, without making permanent changes to the original image.
Multicore Intel processor with 64-bit support
Mac OS X v10.6.8 or v10.7
2.0 GB of RAM
1.0 GB of available hard-disk space
1024 x 768 display
Internet connection required for Internet-based services
Changes in Adobe Photoshop Lightroom 4.1 RC:
New Camera Support:
* Canon EOS 5D Mark III
* Lightroom 4 did not properly open external applications when using the â€œEdit Inâ€ functionality.
* Point Curve adjustments made in Lightroom 3 have been restored.
* Addressed performance issues in Lightroom 4, particularly when loading GPS track logs, using a secondary monitor, and the controls within the Develop module.
* Ability to update DNG previews and metadata for more than 100 photos has been restored.
* This update allows for improved viewing of subfolders and stacks in folders with a large number of photos.
* It was possible that a layout of a saved book could be lost after quitting Lightroom 4.