The Sigma EX 105mm f2.8 DG Macro HSM OS is a macro lens for Nikon F mount cameras, with a built-in image stabilizer and magnification up to 1:1 without the use of extension tubes. Not a lightweight- this lens is almost 800g by itself- but the results are excellent. Clean glass, good function, light cosmetic wear. Includes hood, APS-C lens adapter (basically a lengthening tube), case, and original box.