SMC PENTAX 50mm F1.4 K-mount *No balsam separation!* (S/N: 1063641) Released in 1975. This is a manual focus standard lens with a bright F1.4 aperture and beautiful bokeh. The mount is a bayonet-type K-mount. You can also enjoy it with many mirrorless cameras using a mount adapter! - Lens construction: 6 groups, 7 elements - Minimum focusing distance: 0.45m - Minimum aperture: F22 - Number of aperture blades: 8 - Filter diameter: 52mm - Weight: 270g (actual measurement) [Appearance] There are no noticeable scratches, scuffs, or dents. The lettering is glossy, and the appearance is clean and beautiful (check the photos). [Optics] There is no balsam separation, which is common with this model. It contains a very small amount of dust, but the optics are very clear with no mold, scratches, or clouding. Focuses well at infinity. [Operation] All operations are normal. The aperture ring clicks well, and the blades open and close correctly. The focus ring rotates smoothly with the proper torque. [Mount] Pentax K-mount [Included Accessories] Front cap Rear cap *Please check the photos. ★Although it is a beautiful lens, it is a USED old lens (released in the 1970s). There may be differences in subjective opinions regarding the condition. Please refrain from purchasing if you are looking for perfection. ★We will accept returns if there is a clear initial defect that affects shooting. Thank you for your consideration! #Awajin #OldLens #SMC #PENTAX #Pentax #KMount #SingleFocus #50mm #f1.4