The Pentax-DA 21mm F3.2 LTD HD BLK Lens 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.
The compact form-factor of this lens integrates Pentax's Quick-Shift Focus System, which allows manual focus control over the lens at any time, even in AF mode, for precise handling over the focal plane.
Brand | Pentax |
---|---|
Focal Length | 21mm Comparable 35mm Focal Length: 31.5 mm |
Lens type | Prime lens |
Aperture Range | Maximum: f/3.2 Minimum: f/22 |
Max Format size | APS-C/DX |
Camera Mount | Pentax K |
Lens Format | Pentax Digital (APS-C) |
Lens mount | Pentax KAF |
Minimum Focusing Distance | 7.9“ (20.07 cm) |
Focus Type | Autofocus |
Minimum aperture | F22.0 |
Diaphragm Blades | 7 |
Angle Of View | 68 |
Elements | 8 |
Groups | 5 |
Groups | 5 |
Diaphragm Blades | 7 |
Filter Size | Front:49 mm |
Autofocus | Yes |
Elements | 8 |
Motor Type | Screw Drive from camera |
Weight | 140 |
Dimensions (DxL) | Approx. 2.5 x 1“ (63.50 x 25.40 mm) |
Diameter | 63 mm |
Weight | 119 |
Length | 25 mm |
Filter Thread | 49 mm |
Focal Length | 21mm Comparable 35mm Focal Length: 31.5 mm |
Dimensions(DxL) | 63.50 x 25.40 mm |
Weight | 119 g |
Filter Thread Size | Front: 49 mm |
Autofocus | Yes |
Aperture | Maximum: f/3.2 Minimum: f/22 |
Camera Mount Type | Pentax K |
Format Compatibility | Pentax Digital (APS-C) |
Angle of View | 68 |
Minimum Focus Distance | 20.07 cm |
Magnification | 0.17x |
Maximum Reproduction Ratio | 1:5.88 |
Optical Design | 8 Elements in 5 Groups |
Diaphragm Blades | 7 |