The Manfrotto 577gives you the freedom to remove the camera from the head without detaching it from the plate and put it on any other support. Compatible with the 501PL (old 3433PL) camera plate (supplied with the 3433, 3460, and 3465 heads) and the special 501PLONG accessory plate.
Manfrotto 577 Rapid Connect Adapter with Sliding Mounting Plate (501PL)
501PL Sliding Quick Release Plate with 1/4"-20 & 3/8" Screws
1/4-20" & 3/8" Screws