12-24mm F4.5-5.6 II DG HSM

Ultra wide angle zoom lens compatible with digital SLR cameras with 35mm full frame image sensor

This ultra wide angle zoom lens incorporates the latest optical design provides superior performance. FLD (“F” Low Dispersion) glass elements, which have performance equal to fluorite, and SLD (Special Low Dispersion) glass elements provide excellent correction of color aberration. Aspherical lenses give advanced performance with a compact and lightweight construction. The Super Multi-Layer Coating reduces flare and ghosting. High image quality is assured throughout the entire zoom range. Incorporation of HSM ensures quiet and high speed autofocus as well as full-time manual focus capability. This lens has superior peripheral brightness and provides sharp and high contrast images even at the maximum apertures.

Sigma designed and produced the first wide-angle zoom lens, the “zoom gamma 21-35mm F3.5-4”, in 1979. Sigma has since introduced a number of wide angle zoom lenses. The SIGMA 12-24mm F4.5-5.6 II DG HSM is the successor of the SIGMA 12-24mm F4.5-5.6 EX DG ASPHERICAL / HSM which was launched in November 2003. This ultra wide angle zoom lens is ideal for digital SLRs with a 35mm full frame image sensor and incorporates the latest optical design.

Superior image quality

The ultra wide angle zoom lens is possible due to large diameter of the front lens. Four FLD (“F” Low Dispersion) glass elements, which have performance equal to fluorite, and one SLD (Special Low Dispersion) glass element provide excellent correction of color aberration. Three glass mold elements and one hybrid aspherical compensate for all types of aberration and ensure high optical performance.

*FLD glass is the highest level low dispersion glass available with extremely high light transmission. This optical glass has a performance equal to fluorite glass which has a low refractive index and low dispersion compared to current optical glass. It also benefits from high anomalous dispersion. These characteristics give excellent correction for residual chromatic aberration (secondary spectrum) which cannot be corrected by ordinary optical glass and ensures high definition and high contrast images.

Super Multi-Layer Coating With Super Multi-Layer Coating

Due to the ultra wide angle, the front of this lens is very large. Sigma’s Super Multi-Layer Coating reduces flare and ghosting which could otherwise create problems when extraneous light hits the lens’ front element. It also provides sharp and high contrast images throughout the entire zoom range.

Superior peripheral brightness

The design of front lens group minimizes light fall off and increases peripheral brightness.

Exaggerated perspective

The wide-angle of view produces striking images with exaggerated perspective, enabling photographers to emphasize the subject.

Compact construction

Incorporation of four aspherical lenses provides a compact construction with a diameter of 85mm (3.3″), overall length of 120.2mm (4.7″) and weight of 670g (23.6oz.). The compact construction makes this lens ideal for travel photography.

Quiet and high speed autofocus

Hyper Sonic Motor Incorporation of HSM (Hyper Sonic Motor) ensures quiet and high speed autofocus, while allowing full-time manual focus override.

Inner focusing system

This lens incorporates an inner focusing system, which eliminates front lens rotation which also minimizes fluctuation of aberration caused by the focusing system. Petal-type hood This lens is equipped with a Petal-type hood to block out extraneous light and reduce internal reflections.

Ultra wide angle zoom lens compatible with digital SLR cameras with 35mm full frame image sensor

Lens construction

Specifications

Others

12-24mm F4.5-5.6
II DG HSM

Lens Construction 17 Elements in 13 Groups
Angle of View (for SD1) 122 – 84.1 degrees
Number of Diaphragm Blades 6 Blades
Minimum Aperture F22
Minimum Focusing Distance 28cm / 11in
Maximum Magnification 1:6.4
Dimensions Diameter 87mm x Length 120.2mm / 3.4in. x 4.7in.
Weight 670g / 23.6oz.

Corresponding AF Mounts

Barcode No.

Sigma 00-85126-204563
Canon 00-85126-204624
Nikon 00-85126-204556
Sony 00-85126-204617
Pentax 00-85126-204549

Ultra wide angle zoom lens compatible with digital SLR cameras with 35mm full frame image sensor

MTF chart

12mm

24mm

Distortion

12mm

24mm

Vignetting

12mm

24mm

Ultra wide angle zoom lens compatible with digital SLR cameras with 35mm full frame image sensor

In the news

‘Combined with the solid, silky-smooth feel of the whole lens it does give the impression of quality. …this is a professional tool for commercial, architectural, landscape, creative and social applications. Overall, I would rate this as an indispensable lens for full frame systems if you don’t already own anything wider than 16mm. At around £800 inc VAT it is very affordable and has to get a five-star recommendation.’

‘Sharpness is noticeably better than with the original edition of this lens that we’ve used. A staggeringly wide angle of view, good performance and it’s reasonably compact. High quality glass elements ensures that this extremely wide-angle lens delivers sharpness.’

‘General improvement in sharpness and coverage. ‘For the most extreme coverage, Sigma leads the field’

‘Sigma has done a remarkable job and performance is a lot better than you might expect, in fact, it stands shoulder to shoulder with the very best, despite it’s relatively low cost. This is an amazing lens. In short, it is sharp, built to a very high quality, has a smooth operation and, all things considered, reasonably priced. And at 12mm, the field-of-view in incredibly wide, producing a unique style of image unmatched by any other lens, zoom or prime.’

‘We really put the 12-24mm through its paces. Looking at the image sharpness we found it performed brilliantly, maintaining sharp edges through the aperture range – even out to the edges of the frame. Flawless construction and great performance make it a beauty to use. All in all, this is a real corker of a lens!’

Ultra wide angle zoom lens compatible with digital SLR cameras with 35mm full frame image sensor

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