Spiratone 400mm f6.3 T Mount Lens w/ Lens Hood and Minolta MD AdapterSpiratone 400mm f6. 3 T Mount Lens w Lens Hood and Minolta MD Adapter. The lens is in great cosmetic condition! There is a tripod mount collar on the barrel of the lens. The optics show obvious signs of dust, haze, and fungus. The optics appear to show no signs of scratches. The aperture blades function properly and appear to show no signs of oil. The Minolta MD Adapter is missing two out of three of its screws. The single screw may loosen over time.