This is a high quality 135mm for the Nikon S mount rangefinder system. I've heard that most professional beauty shots are shot on a 135mm these days, even when the shot is wider than just a headshot. The photographer will be far away from the subject and take full body shots on a 135mm that have amazing spatial compression. If you shoot portraits, I encourage you to try the 135mm focal length.
This lens has smooth focus and aperture controls. The glass is clean and scratch-free with no haze or scratches. It comes with both caps and the cool leather case.