The OS300 is a motorized system, designed for testing cell-phone lenses and other small, short focal length lenses. Lenses with focal lengths from 0.5 mm to 50 mm can be tested. Because the OS300 has three motorized axes, pass-fail testing takes only a few seconds. For a more in-depth evaluation, the OS300 can capture through-focus data at dozens of field positions in just one minute.