The LensAlign Long Ruler Kit is designed to work with the LensAlign Calibration System and is intended to help measure the focusing accuracy of your lenses (with an emphasis on longer lenses). The enclosed larger target provides your DSLR with a more significant target to grab onto. In conjunction with the basic LensAlign Kit, you'll be able to check your gear for its focusing accuracy and correct for either front or back focus issues.
The larger target that is part of the kit also serves your DSLR well since it, too, is a more substantial piece to sight from the LensAlign system.
| Size | 47" (1.2 m) |