The MH-656 quick release system with matching camera plate is compatible with style of plates and components that fit the "Arca Swiss" standard such as Arca-Swiss, Graf/Studioball, Wimberley, Foba, etc.
It is an ultra-compact "clamp" style quick release system, which features both horizontal (on the base of the adapter) and vertical (incorporated into the locking knob) bubble levels, as well as anti-twist reversible tabs on the plate that prevent slippage when using the head in a vertical position.
This sliding camera plate locks down by turning the side-mounted locking knob. A safety push-button lock found on the side of the adapter is designed to add additional security.
The Giottos MH-656 is popular because customers like the following qualities of the Giottos MH-656: Attaches firmly, Stable and Strong clamp
Reviewed by 4 customers
have purchased several to use on lense, extra trypod, and monopod
using it on boty my tripods
Got this Quick Release plate to work with a L-Bracket from another brand, works very nicely, no loseness,is tight,secure,well made and easy to use, though not as fast as a lever QR. Very good Deal, great price. So Far no problems Encountered. Does the job I needed it to do.
Mounts beautifully to Giottos 1001 ball head and replaces the "stock" circular top plate, leaving a low profile, clean look. Comes with special screw and allen wrench for that purpose. Very firm and steady with no play or wobble. I also bought an extra plate, which works well. Flip-up tabs on plates (red and shown in down/flush position in photo) are handy and keep my Nikon SLR body from rotating. Mounting screw on bottom of plates has a large flat screw with integrated flip-up (C-shaped) winding tab that allows you to get a lot of torque for a tight attachment without using tools. The safety catch is useable, and it will save your gear. Only quibble is that the main tightening screw is not as smooth or as well damped as those on the head itself, which are excellent. A little grease should fix that. Overall, I was pleasantly surprised by this "value" product; it is a very good value.