Vivitar wide angle 21mm lens

Vivitar 21mm F3.8 Auto Wide-Angle Lens Nikon F Mount Case included! The optics are clean free of fungus, haze, or separations. The lens barrel shown in the photos is in great condition with very minor use wear. Smooth focus, snappy aperture. There is no oil on its aperture blades. A nice lens with a rear cap and lens case. Had been stored in the original case at all times. Please look at all photos carefully as they are a part of the description as well. If you have any questions, please ask. Thank you for looking!