Lateral Color

Displays the lateral color as a function of field height.

For focal systems, the lateral color is the y-distance between the chief ray intercepts of the two extreme wavelengths measured in lens units.

For afocal systems, this is the angle in afocal mode units between the chief rays of the two extreme wavelengths.

Plot Scale Defines the maximum scale for the plot in lens units. Enter zero for automatic.

Use Real Rays If checked, real rays are used, otherwise paraxial rays are used.

All Wavelengths If checked, then data for all defined wavelengths will be displayed. Each wavelength will be referenced to the primary wavelength. If not checked, then the difference between the shortest and longest wavelength rays will be used. See the discussion.

Show Airy Disk If checked, then the Airy disk radius at the primary wavelength will be plotted on either side of the reference line to indicate the extent of the Airy disk.

Next:

• Chromatic Focal Shift