This is a Canon tripod mount ring B, which supports stable shooting. This item is discontinued. Retail price: 15,840 yen You can quickly and easily change the composition between vertical and horizontal positions without shifting the optical axis. ◼︎Compatible lenses: EF100mm F2.8 Macro USM *Lenses that can be used without an adapter, EF180mm F3.5L Macro USM, MP-E65mm F2.8 1-5x Macro Photo ◼︎Condition There are minor scratches, but there are no problems with use. - Brand: Canon - Model name: Tripod Mount Ring B (B) - Country of manufacture: Japan - Features: Tripod mount ring #CANON #L lens #Macro lens #Tripod #SLR #Mount ring