You are considering the Nikon AF mount Sigma 400mm f/5.6 MC AF telephoto lens pictured. It is in fine shape with just a few signs of light, careful use. Mostly paint rubs on the built-in lens hood and less on the barrel. Absolutely no dents or dings that I can see. The glass is clean and clear. I used this lens with my D700 and D3 with outstanding results. The glass is clean and clear. The aperture blades are oil-free and snappy. The aperture ring clicks positively and the focus action is smooth. Very nice indeed. Features of this lens include the venerable Nikon F AF mount, a relatively fast maximum aperture of f/5.6, rugged, all-metal construction for a very luxurious feel when held and used, MC Multi-Coated glass elements for outstanding sharpness, contrast and color rendition, an filter size of 72mm and more. If you have been wanting to take the next step up (is there any other way to go?), you should consider this lens. It is tack-sharp and just a pleasure to use. This lens will work with virtually all Nikon SLRs. Digital as well as film. I'm asking $149. You've been good this year so treat yourself! It really is a gem. Both caps are included. Please check-out my other Nikon and Nikkor offerings. Shipping with Tracking to US addresses only is $12.