Qbm Mount Lenses. The rolleiflex sl35 manufactured by rollei introduced yet another bayonet mount when launched in 1970. Compatible with fujifilm camera includes.
1981 1991 zeiss germany only price. The mount only has 1 pin on the lens work much like the pin in the m42 mount. This bayonet mount was used on all rollei s 35mm slrs and on most of the voigtländer vsl models.
Those are mostly my least favorite qbm mount lenses.
You can order the qbm canon bayonet here. Compatible with fujifilm camera includes. The mount only has 1 pin on the lens work much like the pin in the m42 mount. Stable precise and durable construction.