Lens Summary
Brand: Pentax
Also Known As: Pentax HD DA 21mm f/3.2 AL Limited
Lens Type: Prime Lens
Format: APS-C / DX
Focus: Autofocus
Lens Mount: Pentax K
Release Date: 2013-08-27
MSRP Price: $700
Made in: Japan
Production Status: Discontinued
Lens Description: The black HD Pentax DA 21mm f/3.2 AL Limited Lens from Pentax is a compact pancake-style prime wide-angle lens providing a 35mm-equivalent focal length of 31.5mm. The broad 68° angle of view is well-suited to all-around shooting for both interior and exterior locations. A high-grade multi-layer HD coating has been applied to lens elements to help minimize flare and ghosting for enhanced contrast, clarity, and color fidelity and a seven-blade diaphragm contributes to an aesthetic out-of-focus quality to benefit shallow depth of field imagery. Additionally, an SP Protect coating has also been applied to the front lens element to effectively protect it from dirt, oil, and finger prints.
Pentax HD PENTAX-DA 21mm f/3.2 AL Limited Specifications
| Lens Specifications | |
|---|---|
| Lens Type | Prime Lens |
| Focal Length | 21mm |
| Mount Type | Pentax K |
| Format | APS-C / DX |
| Compatible Format(s) | APS-C |
| Compatible with Teleconverters | No |
| Maximum Reproduction Ratio | 0.17x |
| Shake Reduction (Image Stabilization) | No |
| Aperture Information | |
| Aperture Ring | No |
| Maximim Aperture | f/3.2 |
| Minimum Aperture | f/22 |
| Maximum Angle of View (APS-C or smaller format) | 68° |
| Optical Information | |
| Lens Elements | 8 |
| Lens Groups | 5 |
| Diaphragm Blades | 7 |
| Focus Information | |
| Focus | Autofocus |
| Built-in Focus Motor | Yes |
| Minimum Focus Distance | 0.20m |
| Distance Information | Yes |
| Filter Information | |
| Filter Size | 49mm |
| Accepts Filter Type | Screw-on |
| Physical Characteristics | |
| Weather / Dust Sealing | No |
| Mount Material | Metal |
| Dimensions | 63.50 x 25.40mm |
| Weight | 119g |
| Other Information | |
| Available in Colors | Black |