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 EOS EF 8-15mm lens with a Kenko 1.4x Teleplus Pro 300 teleconverter.
This gear is specifically for use with cinema systems; ie: Red, C200.
