Olympus's compact OM wide prime — 35mm f/2.8 with G.Zuiko designation.
The Olympus G.Zuiko 35mm f/2.8 is a vintage wide-angle prime from the Olympus OM system. The G.Zuiko designation indicates an early Olympus naming convention where the letter prefix encoded the element count (G = Go = 5 in Japanese alphabetical notation). Olympus OM mount.
f/2.8 maximum aperture. 35mm focal length (full-frame). G.Zuiko designation (5-element optical formula). Manual focus. Olympus OM mount.
The G.Zuiko naming convention predates Olympus's later simplified naming. 'G' encoding '5 elements' in the Japanese alphabetical system for element count was used on early Zuiko production. The 35mm f/2.8 provides a standard-wide field of view. Olympus OM lenses are commonly adapted to modern mirrorless cameras.
On the used market the Olympus G.Zuiko 35mm f/2.8 is a vintage wide prime for OM cameras or adapted mirrorless use. Condition checks: front element for marks or haze, aperture blade condition (oil common), focus ring damping. Olympus OM mount — requires OM-to-mirrorless adapter.