Nauticam N10.5-F Focus Gear ~for Nikkor 10.5mm 1:2.8G ED
Focus gears allow access to the mechanical manual focus function of supported lenses. Use of this gear may require the use of additional port extensions or adapters. Check the Port Chart for more details. This focus gear is for the Nikon AF DX Fisheye 10.5mm f/2.8G ED lens.