● Mount: M42 mount (X mount adapter included) ● Lens Construction: 6 elements in 5 groups ● Aperture Blades: 6 blades ● Minimum Aperture: F16 ● Minimum Focusing Distance: 0.45m ● Filter Diameter: 49mm ● Size: 57 x 36mm ● Weight: 190g ● The lens barrel has small scratches and scuffs appropriate for its age. ● Slight cleaning marks on the rear element (no effect on shooting). ● No yellowing of the lens due to it being an early model (non-thorium lens). ● Focus ring, aperture ring, and M/A switch lever all function well. ● Beautiful rainbow-colored ghosting appears when shooting into the light. ● Serial Number: 1030252 ● Accessories: Genuine front cap, genuine metal hood, M42 mount adapter (K&F CONCEPT) ● The camera body in the reference images is not included. ● Please understand that this is an old lens produced in the 1960s before purchasing (no returns). #oldlens #pentax #takumar #oldlens #pentax #takumar