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Sigma Unveils World's First 20mm f1.4 Prime Share This on LinkedIn   Share This on Google   Tweet This   Forward This

16 October 2015

Sigma has expanded its full-frame Art lens line-up with the world's first 20mm f1.4 prime. The new ultra-wide angle lens is compatible with Sigma's USB Dock, joining the other f1.4 Art primes: the 24mm, 35mm and 50mm.

The lens barrel is constructed with a Thermally Stable Composite material, which can handle a wide variety of temperatures and conditions. The lens mount is constructed from brass for long-term durability and mounting accuracy. Compatibility with the optional Sigma USB Dock provides fine-tuned control over focusing parameters and other lens characteristics.


Specifications for the new lens include:

Focal Length 20mm
Aperture f1.4 to f16
Format Full-frame, sub-frame compatible
Mounts Canon, Nikon, Sigma
brass bayonet mount
Angle of View 94.5 degrees
Minimu Focus Distance 10.9 inches
Maximum Reproduction Ratio 1:7.1
Optical Design 15 elements in 11 groups
2 low dispersion elements and 5 special low dispersion elements
Diaphragm Blades Nine rounded blades
Autofocus Hyper Sonic autofocus motor with manual override
Dimensions 3.57 x 5.11 inches
Weight 2.09 lbs.


Sigma said the $899 20mm f1.4 Art will be available in December in Canon, Nikon and Sigma mounts. It will include a case and lens cap. B&H is taking pre-orders now, as is Adorama with listings for the Canon, Nikon and Sigma mounts.

For more information see the news release below.

Sigma 20mm f1.4 DG HSM Art

The New f1.4 joins Sigma's Art line. The Sigma Corp. is pleased to announce the Sigma 20mm f1.4 DG HSM[!]the world's first f1.4 ultra-wide-angle lens for full-frame dSLRs.

Sigma has extensive experience in leveraging its advanced design capabilities and leading-edge technologies to craft large-aperture prime lenses that bring out the full potential of ultra-high-megapixel dSLRs. As its latest achievement in this category, Sigma has created an ultra-wide-angle lens with f1.4 brightness.

With a focal length of 20mm and f1.4 aperture, this lens delivers outstanding large-aperture brightness and bokeh, delivering unprecedented visual experiences. Allowing the photographer to leverage the perspective provided by the wide-angle and the shallow depth of field provided by the large aperture, this lens is ideal not only for such ultra-wide-angle subjects as landscapes and starry skies, but also for snapshots in low light, indoor photography, portraits with a natural bokeh effect and much more.

Launch: November
Accessories: Case, Cover Lens Cap (LC907-01)
Corresponding AF mounts: Sigma, Nikon and Canon

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