Pentax-DA HD 21mm f3.2 AL Limited Lens - Silver
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The Pentax 21mm f3.2 AL Limited Lens Silver is a wide-angle lens designed specifically for use with digital SLR cameras that feature a Pentax K-mount. This Pentax 21mm f3.2 lens incorporates an aspheric lens element for crystal clear image quality, whilst the high-grade aluminium lens barrel ensures the lens is compact, lightweight, but robust. This ultra-slim lens is ideal for capturing landscapes, cityscapes, interior shots, night scenes, group shots and more. Being part of the Pentax "Limited" range, the 21mm f3.2 AL lens inherits a well-constructed aluminium body, exceptional image quality, High Definition (HD) coating and a round-shaped diaphragm for a beautiful bokeh (out-of-focus) effect.
The key features
- High quality finish and excellent optical performance
- High Definition Coating
- Round shaped diaphragm
- AL Aspherical element
High-grade HD coating for exceptional image rendition
All lenses are treated with HD coating,* a high-grade multi-layer lens coating that assures higher light transmittance and lower reflectance than conventional multi-layer coatings. As the result, they produce sharp, clear images free of flare and ghost images, even under such adverse lighting conditions as backlight.
* HD stands for High Definition, and signifies the lens's capacity to reproduce images that excel in transparency, definition, resolution and rendition.
Round-shaped diaphragm for beautiful out-of-focus rendition
All lenses feature a completely round-shaped diaphragm to optimize the performance of their distinctive optics. This diaphragm produces a natural, beautiful bokeh (out-of-focus) effect, while minimizing the streaking effect of point light sources.
Premium quality of the Limited Lens-series
While inheriting the design concept of the Limited Lens series, these lenses were designed by combining a series of mechanical and numerical evaluations with human assessment of test-shooting samples to assure the ultimate in image reproduction. Their optical design has been optimized for digital photography to deliver sharp, clear images with outstanding contrast, even at the maximum aperture. In addition, their lens barrel, hood and cap are all made of a high-grade aluminum material, hand-machined for perfect proportions and beautiful texture.
Product Specification
| Aperture Blades | 7 |
| Colour | Silver |
| Filter Thread [mm] | 49 |
| Focal Length ~ Tele [mm] | 21.0 |
| Focal Length ~ Wide [mm] | 21.0 |
| Hood Model | MH-RBB43 |
| Included Accessories | Lens Hood, Lens cap, Mount cap, Soft Case |
| Lens Elements | 8 |
| Lens Groups | 5 |
| Lens Mount | Pentax K |
| Lens Type | Wide-Angle Prime |
| Max Aperture ~ Tele | 3.2 |
| Max Aperture ~ Wide | 3.2 |
| Maximum Format Size | APS-C |
| Minimum Aperture | 22 |
| Minimum Focus Distance [m] | 0.20 |
| Size | 63 x 25 mm |
| Weight [g] | 134.00 |
