I have a Sigma 80-400mm for Nikon up for sale. The lens coating is flaking off in some spots on the lens and tripod collar, but the lens is NOT beat up at all. Optically, it's in great shape and gets some crisp shots. No haze, fungus, or whatever. Asking $500 to me plus shipping. You cover fees or as a gift. Also has the carrying case, hood, and caps. The tripod collar is on upside down in the pics.