TAMRON Tamron AF18-250mm F/3.5-6.3 Di II LD Aspherical [IF] Macro (Model A18) for Pentax Autofocus and zoom operation confirmed. Although it's a zoom lens, there is some dust, but it's clean with no mold or clouding. The zoom ring torque is also normal. Stored in a dry box for peace of mind. Brand: TAMRON Di Lens Type: Zoom Focal Range: Wide-angle, Standard, Telephoto, Super-telephoto Focus: Autofocus Mount: Pentax K Compatible Sensor Size (Max): APS-C Focal Length (Wide): 18.0 mm Focal Length (Tele): 250.0 mm Open F-value: 3.5 F Minimum Shooting Distance (m): 0.45 m Lens Features: Macro, High-magnification Zoom Image Stabilization: None Filter Compatibility: Yes Filter Diameter: 62.0 mm Dimensions (Maximum Diameter): 74.4 mm Color: Black系 (Black)