Lens Summary
Brand: Pentax
Also Known As: Pentax 16-50mm f/2.8
Lens Type: Zoom Lens
Format: APS-C / DX
Focus: Autofocus
Lens Mount: Pentax K
Release Date: 2007-02-21
MSRP Price: $997.99
Made in: Japan
Infrared Rating: Good
Production Status: In Production
Lens Description: A versatile standard zoom characterized by its bright f/2.8 constant maximum aperture, the smc DA* 16-50mm f/2.8 ED AL (IF) SDM Lens offers a 24-75mm equivalent focal length range and is compatible with Pentax APS-C-format DSLRs. The optical design incorporates a pair of aspherical elements and three extra-low dispersion elements to control chromatic aberrations and distortions throughout the zoom range and contribute to a high-degree of sharpness and clarity. A Super Multi-Coating has also been applied to reduce lens flare and ghosting for increased contrast and color neutrality. Complementing the optical assets, this lens also features a Supersonic Drive Motor (SDM) to provide smooth, quiet autofocus performance and the Quick-Shift Focus System permits instant switching from AF to manual for fine-tuned focus control. Additionally, an internal focusing design maintains the overall lens length during operation and quickens focusing speeds. Benefitting working in a variety of climates, the lens also sports a weather- and dust-resistant construction as well as a Super Protect (SP) coating to repel dust, dirt, moisture, and grease from the front and rear elements.
Pentax smc DA* 16-50mm f/2.8 ED AL SDM Specifications
Lens Specifications | |
---|---|
Lens Type | Zoom Lens |
Focal Length | 16-50mm |
Mount Type | Pentax K |
Format | APS-C / DX |
Compatible Format(s) | Pentax Digital (APS-C) |
Compatible with Teleconverters | No |
Zoom Ratio | 3.12x |
Maximum Reproduction Ratio | 1:4.76 |
Shake Reduction (Image Stabilization) | No |
Aperture Information | |
Aperture Ring | No |
Maximim Aperture | f/2.8 |
Minimum Aperture | f/22 |
Maximum Angle of View (APS-C or smaller format) | 83°-31.5° |
Optical Information | |
Lens Elements | 15 |
Lens Groups | 12 |
Diaphragm Blades | 9 |
Extra-Low Dispersion Glass Elements | 2 |
Aspherical Elements | 3 |
Focus Information | |
Focus | Autofocus |
Built-in Focus Motor | Yes |
Supersonic Direct-drive Motor (SDM) | Yes |
Internal Focusing | Yes |
Minimum Focus Distance | 0.30m |
Distance Information | Yes |
Filter Information | |
Filter Size | 77mm |
Accepts Filter Type | Screw-on |
Physical Characteristics | |
Weather / Dust Sealing | Yes |
Mount Material | Metal |
Dimensions | 8.38 x 9.91cm |
Weight | 565g |
Other Information | |
Available in Colors | Black |
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