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- K-Mount Lens/Full-Frame Format
- Aperture Range: f/3.5-5.6 to f/22-32
- ED Glass Elements
- Super Protect & HD Multi-Layer Coatings
- Supersonic Direct-Drive AF Motor
- Quick-Shift Focus System
- Minimum Focus Distance: 1.64'
- Dust- and Weather-Resistant Design
- 9-Blade Rounded Diaphragm
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.
- 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.
Technical Specifications:
Focal Length |
28 to 105mm |
Maximum Aperture |
f/3.5 to 5.6 |
Minimum Aperture |
f/22 to 32 |
Lens Mount |
Pentax K |
Lens Format Coverage |
Full-Frame |
Angle of View |
15.5° to 53° |
Minimum Focus Distance |
1.64' / 50 cm |
Maximum Magnification |
0.22x |
Optical Design |
15 Elements in 11 Groups |
Diaphragm Blades |
9, Rounded |
Focus Type |
Autofocus |
Image Stabilization |
No |
Filter Size |
62 mm (Front) |
Dimensions (ø x L) |
2.87 x 3.41" / 7.29 x 8.66 cm |
Length at Maximum Extension |
5.39" / 137 mm |
Weight |
15.5 oz / 439 g |
In the Box:
- Pentax HD PENTAX-D FA 28-105mm f/3.5-5.6 ED DC WR Lens
- Pentax PH-RBC62 62mm Lens Hood for Pentax SMC DA 18-135MM f/3.5-5.6 ED AL (IF) DC WR Lens
- Pentax O-LC62 62mm Lens Cap
- Pentax Rear Lens Cap (B) for Bayonet Mount Lenses
- Limited 1-Year Warranty