Released by Pentax:
Pentax Markets a Compact 16mm-45mm DA-Series Zoom Lens for its Digital SLR Cameras
Pentax Corporation is proud to announce the marketing of the smc PENTAX-DA 16mm-45mm F4 ED AL lens for exclusive use with PENTAX digital SLR cameras. When mounted on Pentax digital SLR cameras such as the *istD, this compact, high-performance interchangeable zoom lens features a three-times zoom ratio with focal lengths covering ultra-wide to moderate-telephoto ranges for the angle of view equivalent to 24.5mm-69mm in the 35mm format. The responsive "Quick-Shift Focus System" allows the photographer to instantly switch the focus mode from auto to manual with a slight twist of the focus ring. Coupled with a simple, functional design and the elimination of an aperture ring, this new mechanism considerably improves the camera's operability. The lens also incorporates an Extra-low Dispersion (ED) glass lens element and two aspherical lens elements for true-to-life image reproduction and overall size reduction.
The image circle in DA-series lenses, including the smc PENTAX-DA 16mm-45mm F4 ED AL, is designed to perfectly match the 23.5mm x 15.7mm size of the CCD used in Pentax digital SLRs, optimizing camera performance. The new design also contributes to a drastic reduction in size, weight and production cost, compared to 35mm-format counterparts with similar specifications.
Web Address:
www.pentax.co.uk
Specification
| Product Name | smc PENTAX-DA Zoom 16mm-45mm F4 ED AL |
| Lens Constructions (group-element) | 13 elements in 10 groups |
| Angle of View | 83 - 35° (with *istD body) |
| Diaphragm | Fully Automatic |
| Minimum Aperture | 22 |
| Photometric Method | TTL open-aperture metering |
| Minimum Focusing Distance | 0.28m (0.92 ft.) |
| Maximum Magnification | 0.26 x |
| Filter Diameter | 67mm |
| Maximum Diameter & Minimum Length | 72mm x 92mm (2.8 inch x 3.6 inch) |
| Weight (Wo/hood) | 365g (12.9oz.) |
