Optics look bright with no fungus. There is some moderate dust - which I have attached pictures of, but these have no effect on images. The aperture is snappy and works perfectly. The lens autofocuses fine on my D700, but seems to hunt after finding focus - as if always in continuous focus mode. So selling ‘as seen’. Manual focus is nice and smooth. Some of the ‘Sigma Zen Coating’ paint lifting on the body, but not too bad - see pictures.
eBay