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HD PENTAX-D FA 28-105mm F3.5-5.6 ED DC WR - Specifications

Product data
Article Number 21297
Release date Feb 17, 2016
Technical Specifications
Focal Length


Equivalent to 35mm format


Maximum aperture


Minimum aperture


Number of Diaphragm Blades


Rounded diaphragm (28mm: F3.5-6.3   105mm: F5.6-10)

Diaphragm control : Fully Automatic

Angle of View

75-23.5° when attached to PENTAX 35mm full-frame SLR cameras,

53-15.5° when attached to PENTAX APS-C size DSLR cameras


15 elements in 11 groups

Smallest object distance




Filter size





approx. 440g / with hood approx. 463g

Dimensions (Length x Diameter)

approx. 86.5mm x 73.0mm

Kit Content

Lens Hood PH-RBC62

Lens Cap O-LC62

Lens Mount Cap K

Special Features

HD Coating, SP (Super Protect) Coating

WR (Weather Resistant)

DC Motor

Quick-shift Focus System

Optional Accessories

Lens Case S80-120

In order to discover the products which are being developped and the ones which are planned, you can download our roadmap in pdf:

To see our K-mount currently available range, please download Lenses & Accessories brochure.

Visit the PENTAX Lens Technology web page to discover more about the PENTAX lens construction.

Read more about the PENTAX Focus Function here.

You can use the PENTAX Lens Glossary to learn more about its features.

Want to know more about PENTAX lenses and how to choose the correct one ? Watch our video with professional photographer Kerrick James eplaining that there is a lens for every photographer by clicking here.

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