Sigma 17-70mm F2.8-4 DC Macro OS HSM Lens Zoom Gear SC1770OS Z - Compatible with DSLR Cameras for Professional Photography & Videography

Limited stock is available. 

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 Sigma 17-70mm F2.8-4DC Macro OS HSM (Canon mount) lens.

Product Manual PDF