The smc PENTAX-DA 16-50mm f/2.8 ED AL[IF]SDM wide angle zoom lens delivers the highest level of optical quality and includes SDM technology for fast, accurate, quiet focus. Bringing together advanced optical technologies, including aspherical elements, special optical-glass elements and original lens coatings, these new interchangeable lenses are superior to any existing lens series in terms of contrast, clarity and edge-to-edge sharpness.

Designed for exclusive use with Pentax digital SLR cameras, the Pentax DA series 50-135mm telephoto zoom lens makes it easy to capture close-in sports shots or intimate wildlife photography. The lens is distinguished by its aspherical elements, special optical-glass elements, and original glass coatings, which help produce a high contrast, unmatched clarity, and edge-to-edge sharpness. The lens also boasts a tightly sealed weather- and dust-resistant housing that stands up to rainy or dusty conditions. And users will love the new SDM system, which produces smoother, quieter autofocusing using a built-in supersonic motor. Other details include a Pentax-original Quick-Shift Focus System that switches instantly to manual-focus operation, a Pentax SP coating that protects the exposed lens elements, and a focal length equivalent to 76.5-207mm in the 35mm format.

• Lens mount: Pentax KAF2
• Lens construction: 18 elements in 14 groups
• Angle of view: 31.5 to 11.9 degrees (when used with Pentax digital SLR camera body)
• Aperture control: Automatic
• Minimum aperture: F22
• Metering system: TTL open-aperture metering
• Minimum focusing distance: 1 meter
• Filter size: 67mm
• Maximum magnification: 0.17x
• Dimensions: 3 inches in diameter and 5.4 inches long
• Weight: 24.2 ounces (without hood)