Fujinon SW 28mm f/3.5 lens, made in Japan, aperture range from f/3.5 to f/22. - Brand: Fujinon - Model: SW 28mm f/3.5 - Country of Manufacture: Japan - Aperture: f/3.5 - f/22 - Focal Length: 28mm Lens mount is M42. This is a used item, so there is some wear and tear, but the lens functions normally.