New in Lightroom 3 is the ability to make lens corrections similar to those possible with an articulated view camera. I’m absolutely loving this feature. Below is an example of a snapshot processed through Lightroom without any compensation for the distortion of the buildings caused by misalignment of the film plane to the buildings. Mouse over the image to see the corrected image. The lens corrections feature allows you to straighten vertical lines and correct for pincushioning or barrel distortion.
The lens on the Lumix LX3 un-corrected, adds a wicked amount of distortion all by itself. Lightroom corrects for this when it converts the RAW file. Jpegs from the camera have this distortion corrected in the camera as the Jpeg is prepared. The only time you would even notice it is when using a RAW convertor that doesn’t automatically correct it. The distortion I’ve corrected for in this photo was caused by how I held the camera as I took this picture. I like seeing the buildings straightened out instead of leaning into the street. Using this feature does chew up some of the image. Shooting wider or looser is one defense or I could have held the camera parallel with the vertical lines in the scene.