Before Canon's RF mount, there was the EF mount, and before the EF mount, there was the FD mount. The FD mount is over 50 years old, but it had some groundbreaking lenses, and with the ability to adapt them to mirrorless lenses, we are seeing a real resurgence in popularity. This awesome video review takes a look at one of the most legendary FD lenses, the 55mm f/1.2 S.S.C. Aspherical.