This is not a Manfrotto product but is compatible with many Manfrotto systems. Suitable for Photo or Video Cameras.

Upgrade most heads and tripods to a quick-release system. The locking handle can be repositioned by pulling outward.

Features: * Camera plate includes 1/4"-20 and 3/8"-16 screws. * Sliding adaptor plate includes a built-in, spring-loaded, camera alignment pin. * Push-button safety lock prevents accidental release of adaptor plate.

Total Size - 90 x 75 x 23mm. high.

Camera Plate Size - 90 x 40 x 12mm with both 3/8" and 1/4" camera screws with sprung video pin. The base plate has both 1/4" and 3/8" mounting threaded holes in the base.

The CT577 Quick Release Adaptor's camera plate is compatible with Manfrotto Video Heads 500 / 501 / 502 / 503 / 504 / 509 / 519 / 701HDV, plus all heads using this sized camera plate.