P120-F Focus Gear ~for Mamiya 120mm f/4 Macro and Phase One 120mm f/4.0 Macro extension This optical-glass wide-angle dome port

This optical-glass wide-angle dome port has a diameter of 180mm and is part of the N100 port system

It fits perfectly into the supported housings

Effective length: 20mm

Depth Rating 100m Port System N85 to N100 Conversion Weight Port Opening Diameter Port Diameter Body Material Anodized Aluminum Alloy Port Material Port Coating Port Shade Material Removable Port Shade Spare O-ring 90143 split

Does NOT include bulkhead

P120-F Focus Gear ~for Mamiya 120mm f/4 Macro and Phase One 120mm f/4.0 Macro extension This optical-glass wide-angle dome portFocus gears allow access to the mechanical zoom function of many lenses. Use of these gears may require specific port extensions and may not be available for all housings and lenses. This focus gear is specifically made for the Mamiya 120mm f 4 Macro lens and Phase One Digital 120mm f 4. 0 lens.