The Phot-R® 577 quick release adapter plate gives you the freedom to remove the camera from the head without detaching it from the plate. It includes the P-501PL. A 1/4" screw and a 3/8" screw are included so you can use the plate with various cameras. Corresponding threaded holes on the side of the adapter allow you to store the screw that is not being used, so you can access it if and when you need it.
- 20 mm of sliding travel within plate to optimally balance gear.
- One 1/4" and one 3/8" female bottom mounting threads.
- The plate features an anti-twist video register pin
- 2-Stage quick release system.