Versatile, relatively compact, and compatible with full-frame K-mount DSLRs, the HD PENTAX-D FA 28-105mm f/3.5-5.6 ED DC WR Lens from Pentax will be a perfect pairing for many shooters thanks to its wide-angle to medium telephoto range. The lens also features an f/3.5-5.6 variable aperture to help keep size down while also utilizing ED glass elements to reduce aberrations. The lens sports both Super Protect and HD multi-layer coatings in order to protect against accidental damage and reduce flaring and ghosting.
Focusing is fast and quiet thanks to the integration of a Supersonic Direct-Drive Motor and the lens has a Quick-Shift feature for fast switching between auto and manual focusing. The lens also focuses as close as 1.64' and it has a 9-blade rounded aperture diaphragm for smooth out-of-focus elements. Additionally, it is dust- and water-resistant with eight seals to protect from intrusion.
|Focal Length||28 - 105mm
Comparable 35mm Equivalent on APS-C Format Focal Length: 43 - 161 mm
|Aperture||Maximum: f/3.5 - 5.6
Minimum: f/22 - 32
|Camera Mount Type||Pentax K|
|Format Compatibility||35mm Film / Full-Frame Digital Sensor|
|Angle of View||15.5° - 53°
APS-C Picture Angle: 23.5° - 75°
|Minimum Focus Distance||1.64' (50 cm)|
|Maximum Reproduction Ratio||1:4.5|
|Diaphragm Blades||9, Rounded|
|Filter Thread||Front: 62 mm|
|Dimensions (DxL)||Approx. 2.87 x 3.41" (7.29 x 8.66 cm)|
|Weight||15.5 oz (439 g)|