PRF-58
Lens Rear Cap RLCP-001
Lens Cap FLCP-58 II (flat type)
The telephoto zoom “XC50-230mm F4.5-6.7 OIS II”, which employs 13 all-glass elements in 10 groups, including 1 aspherical lens element and 1 ED lens element.
Using a glass-molded aspheric lens at the 5th element minimizes spherical aberration.