Overview
Compare
Accessories
Specs
Protection

Reviews about this item

Review Summary

Sigma 12-24mm f/4.5-5.6 EX DG Lens for Pentax, USA Specifications

  • Construction

    12 groups /16 elements

  • Angle of view

    122.0°-84.1°

  • F stop range

    F22 / F4.5-5.6

  • Closest Focusing Distance

    11 in. (28cm)

  • Maximum Magnification

    1:7.1

  • Filter Size

    Rear Type (gelatin filter insert)

  • Dimensions (Length x Diameter)

    3.42 in. (dia) x 3.94 in. (length) / 87mm (dia) x 100mm (length)

  • Weight

    21.6 oz. (615g)

  • Notes

    Fixed Type Petal Hood

    Focusing System : Inner Focus

0 Accessories for Sigma 12mm-24mm f/4.5-5.6 EX DG Aspherical Autofocus Super Wide-Angle Zoom Lens, for Pentax AF Cameras - USA Warranty

About Sigma 12-24mm f/4.5-5.6 EX DG Lens for Pentax, USA

The large angle of view of the Sigma 12-24 4.5/5.6 Ex DG ASPH Zoom (122 degree super wide angle of view at 12mm along the diagonal axis) is ideal for shooting indoors as well as landscape photography. It has a variable angle of view from 122 degrees to 84.1 degrees.

Four Special Low Dispertion (SLD) glass elements are provided for effective compensation of color aberration, which is a common problem with super-wide angle lenses. Two pieces of Glass Mold and one-piece Hybrid aspherical lenses offer excellent correction for distortion as well as all types of aberration.

By effective arrangement of lens elements and advanced technology this lens has Super Compact dimensions of 100mm full-length, and 87mm Maximum Diameter. It is equipped with an Inner Focusing System that will keep the length of the lens unchanged, while controlling aberration.

The models which are equipped with the HSM (Hyper Sonic Motor) System (only in Nikon, Canon and Sigma Camera Mounts) offer Full Time Manual Focusing. It has a minimum focusing distance of 28mm at all focal lengths. This lens is equipped with an integral Petal-Type Hood, to block out extraneous light.

Sigma 12-24mm f/4.5-5.6 EX DG Lens for Pentax, USA Features

  • First Zoom lens that has 122 degree Diagonal Angle of View at 12mm Focal length !
  • Variable Angle of View, from 122 degrees to 84.1 degrees
  • Equipped with 4 piece SLD glass elements and 3 pcs. Aspherical lenses, producing a high level of optical performane.
  • Inner Focusing System insures the length of the lens remains unchanged, whilst controlling Aberration.
  • HSM System (in Sigma Nikon & Canon Camera mounts only) with Full Time Manual Focus.
  • Minimum Focusing Distance of 28cm at all focal lengths.
  • EX DG Series , the Ideal lens for Digital SLR Cameras

What's in the box:

  • Built in Petal Shaped Lens Hood, Sigma Four-Year Warranty (Sigma One-Year Worldwide Warranty plus Si