From the category archives:

Pentax

Pentax 17-70mm f/4 DA SMC AL IF SDM Lens for Pentax Digital SLR Cameras

Pentax DA 55-300mm f/4-5.8 ED review

Extreme telephoto range zoom lens
PENTAX SP coating protects the exposed lens elements
ED elements compensate for chromatic aberration
Developed specifically for PENTAX digital SLRs
Focal length equivalent to 82.5mm to 450mm in the 35mm format

The lens is outfitted with multiple ED glass elements, which are designed to minimize chromatic aberration and makes images [...]

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Pentax SMC DA* 60-250mm f/4 ED IF SDM Telephoto Zoom Lens w/ Case for Pentax Digital SLR Cameras

Pentax DA 55-300mm f/4-5.8 ED review

The lens is outfitted with multiple ED glass elements, which are designed to minimize chromatic aberration and makes images [...]

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Sigma 70-300mm f/4-5.6 DG APO Macro Telephoto Zoom Lens for Pentax and Samsung SLR Cameras

Pentax DA 55-300mm f/4-5.8 ED review

The lens is outfitted with multiple ED glass elements, which are designed to minimize chromatic aberration and makes images [...]

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Pentax SMC DA* 55mm f/1.4 SDM Prime Standard Lens w/ Case for Pentax Digital SLR Cameras

Pentax SMC DA* 55mm f/1.4 SDM review

Lens Mount – PENTAX KAF3
Aperture – F1.4
Angle of View – 28.6 degrees
Minimum Aperture – F22
Minimum Focusing Distance – 17.76 inches

Boasting such features as super-low-dispersion optical elements, extra-low-dispersion (ED) optical elements, and Pentax original lens coatings, the Pentax DA* 55mm f/1.4 lens delivers crisp high-contrast images even at the [...]

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