The used Pentax HD DA 16-85mm f/3.5-5.6 ED DC WR is a high-quality standard zoom for APS-C Pentax DSLRs.
Great general-purpose zoom
24.5-130mm equivalent focal length after sensor-crop factor
Smooth, nearly silent autofocus with full-time manual focus
High-quality optics for excellent image quality
Standard Zoom. With a focal length equivalent to 24.5-130mm after sensor-crop factor, the Pentax 16-85mm is a great zoom option for general-purpose use. Its f/3.5-5.6 aperture isn’t anything to write home about, but it’ll get the job done in good lighting. If you’re shooting indoors or in low light, you’ll want a flash and/or tripod.
Direct Current Autofocus Motor. The in-lens direct-current autofocus motor enables smooth, nearly silent performance for both still and video use. This lens also features Pentax’s Quick-Shift Focus System for instantly switching from autofocus to manual focus.
Optics. The twelve group/sixteen element design features one extra-low dispersion (ED) element and three aspherical elements that work in tandem to help keep chromatic aberrations and distortion at bay throughout the zoom range. Additionally, the SP (Super Protect) coating on the front and rear lens elements repels dust, water, and grease.
HD Lens Coating. This high-grade, multi-layer coating reduces reflections while optimizing light transmission and image contrast.