PTX 21590
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smcP DA 21mm f/3.2 AL Limited
With newly developed, high-performance optics, this new lens measures only one inch (25 millimeters long) and weighs a mere 4.9 ounces (140 grams). Mounted on a PENTAX digital SLR camera body, the lens protrudes very little from the camera’s front panel, making it an ideal choice for carry-everywhere, instantaneous snapshot photography. This versatile angle of view produces natural images with a moderate perspective and an expanded depth of field (or a wide in-focus area), making it ideal for many different types of subjects and occasions, including snapshots, landscape, travel photos, and architecture. The DA 21mm incorporates a hybrid aspherical lens in its eighth optical element to effectively compensate for a variety of aberrations, which cause adverse effects on overall image quality. In order to assure high-quality image reproduction over the entire focusing range, it also features a floating mechanism, which is designed to adjust the degree of aberration compensation in relation to the focusing distance
What's in The Box:
- SMCP-DA 21mm F3.2 AL Limited w/Hood (21590)
- Lens Hood MH-RBA 43mm (38748)
- DA 21mm Lens Cap (31518)
- DA 21mm Lens Soft Case (37747)
- PENTAX KAF Mount
- Equivalent focal length to 31.5mm in the 35mm format with *ist D series
- The image circle is designed to match the CCD used in PENTAX digital SLRs
- Ultra-compact pancake-type design weighs just 4.7 ounces
- Exceptional high contrast, high resolution optics with minimal aberrations
- Responsive “Quick-Shift Focus System” allows instant shift from AF to MF
- Comes with a lens hood to minimize flare and ghost images
PENTAX KAF mount
Lens Construction::8 elements in 5 groups
Angle of View::68 degrees (when used with *istD series & K100D body)
Aperture Control::Automatic
Number of Diaphragm Blades::7
Minimum Aperture::F22
Metering System::TTL open-aperture metering
Minimum Focusing Distance::0.66 ft. (0.2m)
Filter Size::43mm or 49mm
Maximum Magnification::0.17X
Dimensions::2.5" x 1.0" (63mm x 25mm)
Weight::4.9 oz. (140g) without hood; 5.5 oz. (155g) with hood