Canon 100mm Macro EF USM Chart for our Tele Extension Ring Specifications
Canon 100mm Macro EF USM Full Chart for its Gear, Focus, and Teleconverter Extension Rings
Our Canon 100mm Macro EF USM Tele Extension Ring in conjunction with a Canon 100mm Macro EF USM Focus Ring and our Canon 100mm Macro EF USM T2 Gear ONLY (sold separately) makes up a complete Focus Gear using either a 1.4X or 2X TeleConverter for the Canon 100mm Macro EF USM lens . It is designed to fit with approved DSLR housings for Canon cameras. The Extension Ring is constructed of impact resistant ABS plastic. Its color is Red. It has been designed to fit with either the Tameron SP AF or Kenko Pro 300 DG brand teleconverter.
Refer to Xit 404's Chart of Verified Housings to determine if your particular housing and lens combinations are supported. Xit 404 continues to add new lenses to its line of gears. If you do not see your lens/housing on the list contact us - it may be coming.