Approximately 90 lenses have been added to the Lens Distortion Test Comparison Tool. Newly added lenses include most Nikon lenses and many third party lenses.
Some of you have indicated that a grid overlay would be a useful addition to this tool and I plan to make such a grid optional. If you know of an easy way to create a grid using Photoshop, would you mind emailing me instructions for doing so? Thanks!