Sigma lens for Nikon Full Frame or crop sensor cameras. Works great - quick autofocus, super bright with a 1.4 aperture, razor sharp. No scratches. No oil on the aperture blades. Very sharp picture. This is an EX DG HSM model. Cosmetically not mint as it has a bit of the gold paint worn off the logo but other wise good. I have used it for many years. 50mm 1.4. Comes with lens hood.