Comes with 8 shims and a baffle tool .
Allows you to change the flange focal distance of PL lenses .
Allows you to use PL lenses with cameras that have a different flange focal distance .
The set of eight PL Mount Shims from Blackmagic Design is a set of shims designed to change the flange focal distance of PL (positive lock) lenses mounted on URSA Digital Cinema Cameras.