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Wide Angle 21mm f/3.2 AL Limited Series Autofocus Lens

Part #: 21590
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The Pentax Wide Angle 21mm f/3.2 AL Limited Series Autofocus Lens is a 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.

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Lens Information
Camera Mount Pentax K
Focal Length 21mm
Aperture Range f/3.2-f/22
Minimum Focusing Distance 0.66 ft.
Filter Size 43mm or 49mm (depending on lens hood used)
Groups 5
Elements 8
Diagonal Angle Of View 68°
Length 1 in.
Maximum Diameter 2.5 in.
Weight 4.9 oz. (140 g) without hood; 5.5 oz. (155 g) with hood
  • Front Lens Cap (#37747)
  • MH-RBA Lens Hood (#38748)
  • 21mm Soft Lens Pouch
  • 1-Year Warranty
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