Adobe® Photoshop® CS2 Studio Techniques

The Lens Tab

This is another collection of settings that are completely optional (Figure 9.35). I use them only when I notice specific problems with my images that have to do with the lens that I used to shoot them.

Figure 9.35. The sliders found under the Lens tab are designed to compensate for problems related to the camera lens.

Some lenses—particularly wide-angle lenses—often have the problem of focusing different wavelengths of light at different points. When that happens, you can end up with a halo of color on the edge of objects that would usually be white or black (and to a lesser extent colored objects). I'm no expert on optics, but ...