The following review written by one of the Software Informer contributors applies to version 3.6
ShiftN was created for professional photographers as a software alternative to expensive “shift lenses” that are used to correct the converging lines and incorrect angles from a photo.
It performs an optimization process on your photo in order to remove all the converging lines that it finds.
At first sight, this program might seem just another application that can be used to enhance photos by applying certain effects. But it is actually a complex tool which uses mathematical algorithms in order to change various photo parameters. Moreover, it is able to do this automatically, saving the user precious time.
ShiftN comes with a quite easy-to-use graphical interface. All the user needs to do is to add a photo or a batch of photos, and either manually adjust parameters like: focal length, radial distortion, line contrast, or use the automatic correction tool.
ShiftN is also able to save the results to graphic formats like: JPEG, TIFF, BMP, etc. Version 3.6.1 of ShiftN allows users to use the same settings for all the photos in a batch. Professional photographers will appreciate the features that ShiftN has to offer.