Classic Pentax Super-takumar manual focus 55mm f1.8 - f16 prime standard lens . M42mm screw mount . Auto / manual iris . In FULL working order , smooth focus , crisp , accurate and clean iris . The optics are free from optical fungus , scratches and separation , just the usual minor tiny dust specks you get in all vintage lens . Supplied with generic caps . Uses 49mm Filters . Free UK P&P . 057