Versatile zoom lens covers standard to medium-telephoto ranges. It provides a maximum aperture of F3.5 – 5.6 over the zoom range. Constructed to reduce various aberrations including color aberrations while providing high contrast and high resolution throughout the entire image field at maximum aperture.
Description
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.
- Covering wide-angle to medium telephoto perspectives, this versatile 28-105mm zoom offers a convenient option for full-frame K-mount Pentax DSLRs and is also compatible with APS-C models, where it will provide a 43-161mm equivalent focal length range.
- Variable f/3.5-5.6 maximum aperture ensures a compact size while offering a wide range of versatile focal lengths.
- ED glass elements are featured in the lens design and help to control chromatic aberrations and reduce color fringing for increased clarity and color fidelity.
- The High Definition (HD) multi-layer coating is utilized to reduce reflections, flare, and ghosting for improved contrast and color in more trying lighting conditions.
- Super Protect coating will help keep the optics safe in the event of accidental impact or if it comes in contact with water or dust.
- Supersonic Direct-Drive Motor (SDM) ensures fast, quiet, and smoother autofocus operation.
- A rounded nine-blade diaphragm contributes to a pleasing bokeh quality when employing shallow depth of field techniques. It is completely rounded between f/3.5-6.3 when at 28mm and between f/5.6-10 when at 105mm.
- A weather-resistant design features eight seals which better permit working in inclement conditions.
- Includes PH-RBS62 lens hood to limit flare from light sources.
- Optional S-80-120 Soft Lens Case is available to protect lens during transport or storage.
Specification
| 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) |
| Magnification | 0.22x |
| Maximum Reproduction Ratio | 1:4.5 |
| Elements/Groups | 15/11 |
| Diaphragm Blades | 9, Rounded |
