The new AF-1100 Afocal Module is an accessory to the LP-1000 Lens Platform that provides the second rotation required when measuring afocal lens assemblies such as visual riflescopes and telescopes. The AF-1100 includes a length of linear rail with a carrier for mounting the lens under test and placing the exit pupil over the axis of rotation. A fixed decollimating (eye) lens and external aperture stop are made coincident with the plane of the exit pupil, and the separation between the two rotary axes is set to the distance reported in OpTest 7–minimizing the pupil walk across the collimated beam over the full field of view. The AF-1100 and OpTest 7 software full support both inverting and non-inverting afocal lens measurements.
AF-1100 Afocal Module for OpTest System