A vintage, manual-focus wide-angle prime lens designed for the Olympus OM film SLR camera system, featuring a 28mm focal length and a maximum aperture of f/3.5, with the "G" prefix indicating it uses a 7-element optical construction.Key Specifications: Uses the Olympus OM mount, accepts 49mm front filters, and is well-regarded for its compact, lightweight pancake-style build and sharp landscape or street photography performance.