Lens Plate for Nikon 80-400 mm. Zoom Lens At 4.3" the NP 26 is just long enough to cover the balance point. It has a double cut dovetail to accommodate flash arms using the ARCA style mount. Features our unique improved anti drop function. ARCA compatible like all 4th Generation Designs products. Wrench, mounting, and limit screws provided. Weight: 2.6 ozs.