Sigma 15mm F2.8 EX DG Fisheye Lens SC15 F Focus Gear - Compatible with DSLR Cameras for Stunning Wide-Angle & Creative Photography, Perfect for Landscape, Architecture, and Artistic Shots

Limited stock is available. 

Focus 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 specific for the Sigma 15mm F2.8 EX DG Diagonal Fisheye (Canon mount) lens.