I bought the Sirui quick release plate for my Nikon D700. For use, the plate comes to a head Sirui ball. The plate fits perfectly on the D700, budge and is quite thin. You can therefore always remain at the camera. The build quality is excellent, it could not be better. Since the plate Arca-Swiss compatible, they can thus be used for other ball heads with Arca-Swiss system. A very clear buy Tripp.