55mm · f/4.5
The Meyer Gorlitz Helioplan 55mm f/4.5 is an uncoated four-element lens offering decent sharpness and pleasing rendering, color, contrast, and sharpness. Its main weakness is a slow maximum aperture of f/4.5, limiting low-light use. Build and handling are typical of vintage lenses. It suits photographers seeking a unique, characterful rendering for controlled conditions, though faster alternatives exist for general use.