PENTAX SMC 55mm f/1.8 Working condition: OK Aperture: No issues. Exterior: The front element is clean. The rear element has some haze when a strong light is shone on it. Front cap: Third-party product. Rear cap: Not included. Please understand the above before purchasing. Focal length...19-70mm Maximum aperture...f/1.5-2 Other features...Old lens, with front lens cap