Features
- High performance, wide angle zoom lens
- SDM system creates smoother, quieter auto focus
- Weather resistant and dust resistant body
- Quick-shift Focus System for instant switching from auto focus to manual
- Pentax SP coating protects the exposed lens elements
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Amazon.com Product Description
Designed for exclusive use with Pentax digital SLR cameras, the Pentax DA* 16-50mm f/2.8 wide-angle zoom lens is a terrific choice for landscapes, portraiture, and just about any other application. The lens features a tightly sealed, weather-resistant and dust-resistant construction to enhance durability in rainy or dusty conditions. The lens's three aspherical elements and two special optical glass elements, meanwhile, help compensate for chromatic and spherical aberration, producing images with superior contrast, clarity, and edge-to-edge sharpness. And thanks to the lens's Pentax-original Quick-Shift Focus System, you can easily and instantly switch from autofocus to manual focus.
Specifications
Focal length: 16-50mm Maximum aperture: f/2.8 Minimum aperture: f/22 Lens construction: 15 elements in 12 groups Angle of view: 83 to 31.5 degrees (when used with Pentax digital SLR camera body) Number of diaphragm blades: 9 Metering system: TTL open-aperture metering Minimum focusing distance: 0.3 meters Maximum magnification: 0.21x Filter size: 77mm Corresponding AF mounts: Pentax KAF2 Dimensions: 3.3 inches in diameter and 3.9 inches long Weight: 19.9 ounces (without hood) Warranty: 1 year