Sigma 12-24mm f/4.5-5.6 II DG HSM Autofocus Super Wide-Angle Zoom Lens, for Pentax AF Cameras - USA Warranty


About Sigma 12-24mm

Sigma's new 12-24mm F4.5-5.6 II DG HSM is an update to the 12-24mm F4.5-5.6 EX DG ASP HSM, which has been a photographer favorite since it was first introduced in 2002.

Revisions to the lens include the splash-proof design, as well as the inclusion of one Special Low Dispersion (SLD) glass element and four of the company's new "F" Low Dispersion FLD glass elements to compensate for color aberration and provide high imagequality. FLD glass is the highest level, low dispersion glass available with extremely high light transmission and performance equal to fluorite glass.

The new 12-24mm contains three glass mold elements and one hybrid aspherical lens for advanced performance and compact and lightweight construction. It also features Super Multi-Layer Coating to reduce flare and ghosting, and a Hyper Sonic Motor (HSM) to ensure quiet and high-speed autofocus, while allowing full-time manual focus override. Its minimum focusing distance is 11 inches throughout the entire zoom range; its maximum magnification ratio is 1:6.4.

Sigma 12-24mm Features

  • Designed for use with full frame digital cameras. May also be used with smaller APS-c size sensors with a corresponding effective increase in focal length to about 17-35mm with most cameras
  • A splash-proof design allows for use in harsh conditions.
  • One SLD and Four FLD glass
  • Minimum focusing distance of 11 inches

Sigma 12-24mm Specifications

17 Elements in 13 Groups
Angle of view
F stop range
F22 / F4.5-5.6
Closest Focusing Distance
11 in. (28cm)
Maximum Magnification
Filter Size
Rear Type (gelatin filter insert)
Dimensions (Diameter x Diameter)
3.3 x4.7 in / 85 x 120.2 mm
23.6 oz. (670g)
Fixed Type Petal Hood

Focusing System : Inner Focus
Mfr #

Sigma 12-24mm Reviews

Reviewed by 2 customers


Great lens for landscape and weddings


from Pittsburgh, Pa  -  Pro Photographer

I've been a professional photographer for about 14 years now and do a lot of wedding/portraiture but have been getting more requests for real estate work and landscape art. A great telephoto, wide lens was definitely necessary and I've been trying few different ones throughout the years. This 12-24 seems to fit the bill nicely. Not a lot of distortion but it's more noticeable when I'm using it in smaller rooms of houses. TAKE THE LENS HOOD OFF when zoomed wide (12mm-16mm) to avoid seeing the dreaded black ring around your image. It's not a pretty vignette. All my other lenses are f2.8 or lower but this lens is going to be used at higher f-stops for the most part so it doesn't matter that it's a 4.5-5.6 for me.

(2 of 2 customers found this review helpful)


I love this lens.


from Houston, Texas  -  Pro Photographer

I used this lens on a trip to Boston, it was great. Sharp, easy to focus,I am very pleased with the performance of this len. I was wanting one for a long time and finally broke down & bought it..

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