One big advantage of Arca-type quick release mechanism is the easy availability of customized body plates. A customized plate is built with a lip that prevents the plate from twisting while attached to the camera. This obviates massive overtorquing of the mounting screw that is often required to secure the camera in other quick release systems or directly to the tripod. The overtorquing is required because those systems rely upon the friction between the bottom of the camera body and a rubber or cork surface to prevent twisting. All too often this friction is insufficient, especially when a camera with a heavy lens without a tripod collar is flipped into a vertical aspect.
The other advantage is, of course, the sheer elegance and simplicity, not to mention the effectiveness, of the Arca system itself. The system consists of two main parts: the camera-specific plate and the clamp. The clamp is, more often than not, mounted onto a ballhead but you can buy clamps with either a female 3/8" or standard 1/4" tripod socket to affix to virtually anything including your existing tripod head.
You can buy the clamp and the camera-specific plate from a number of places. You can even mix and match clamps and plates between manufacturers because the beauty is that they're all compatibile. The most popular brands include Kirk
, Acratech
, Really Right Stuff
, Wimberley
, and of course Arca-Swiss which is available at B&H Photo
.
Lesser known brands include Foba and Linhof (both available at B&H Photo), and Markins
.
All this doesn't come without a price, and the Arca system is, indeed, pricy compared to other systems. But like the saying goes, "It pays to get the best." After all, isn't that what we do with our cameras, lenses and everything else photographic? 