Nauticam C1740-Z Zoom Gear for Canon EF 17-40mm f/4L USM

SKU # 19528


Zoom gears allow access to the mechanical zoom 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 zoom gear is for the Canon EF 17-40mm f/4L USM lens.