This Super Albinar lens is a great addition to your photography arsenal. With a maximum aperture of f/2.8, it's perfect for low light situations and creating a beautiful bokeh effect. Compatible with Pentax cameras and lenses, the Pentax K mount makes it easy to use with your existing equipment. The 28mm focal length is versatile and can be used for a variety of photography styles. Made with durable aluminum, this lens is built to last. In good shape appears to be clean and has no scratches! See pictures! I am no professional photographer and if I missed something please let me know! Thanks!