A standard mount plate is mainly used to mount an optical tube or a lens, while allowing for micrometric rotation of 90° (on the axis corresponding to declination). The hardness of the rotation is adjusted using a brake, and the micrometric movement is controlled by a knurled screw.

The micrometric plate, equipped with a Kodak screw (1/4"-20), is detachable. It features a dovetail with 2 Congress screw holes (3/8"-16) at each end, allowing for the attachment of 2 independent photo ball heads, or one ball head and an optical tube.

It is entirely possible to use the micrometric plate on one side and a classic ball head on the other side. The dovetail, the micrometric plate, and the 2 Congress screws offer a great variety of mounts to adapt to all your needs.