A general optical term to refer to a colour fringe caused by the lens having slightly different magnifications for different wavelengths of light. The D700 automatically corrects lateral chromatic aberration. Tools are also provided to mitigate lateral chromatic aberration in Capture NX 2. 1 and earlier ("Auto colour Aberration (Correction)" and "Color Aberration Control") and Capture NX 2. 2 and later ("Auto Lateral colour Aberration (Correction)" and "Lateral colour Aberration (Correction)").

Different colours of light have different wavelengths. These differences in wavelength are visible in differences in the size of the image at its periphery. Such differences in magnification are one cause of chromatic aberration. Although lateral chromatic aberration can be controlled to an extent by including elements with different refractive indices in the lens, it is not optically possible to eliminate it altogether. In addition to red and its complementary colour cyan and blue and its complementary colour yellow, some lenses may produce compound chromatic aberration that mixes these colors.

English references on axial (or longitudinal) chromatic aberration include:

http://www. Microscopyu. Com/tutorials/java/aberrations/chromatic/index. Html

http://www. Dpreview. Com/learn/?/Glossary/Optical/chromatic_aberration_01. Htm.