SIGMA 20mm F1.4 DG HSM | Art Launch: November. Accessories: Case, Cover Lens Cap (LC907-01). Corresponding AF mounts: SIGMA, Nikon and Canon
PRESS RELEASE
Sigma Corporation Announces World’s First 20mm F1.4 Lens for Full-Frame DSLRs
October 16, 2015
Newest Global Vision Art lens makes debut at PhotoPlus Expo 2015 live from Sigma booth #337
RONKONKOMA, NY — October 16, 2015 – Sigma Corporation of America, a leading DSLR lens and camera manufacturer, is setting new benchmarks for wide-angle image quality with the announcement of the newest Global Vision and market’s first full-frame 20mm F1.4 lens, the Sigma 20mm F1.4 DG HSM Art lens. The lens will be on display at PhotoPlus International Conference + Expo in New York City from October 22-24. The lens will become available late November for the street price of $899.
SIGMA 20mm F1.4 DG HSM | Art
This revolutionary prime lens is designed to bring out the full potential of ultra-high-megapixel DSLR cameras. With a focal length of 20mm and F1.4 aperture, this lens delivers outstanding large-aperture brightness and bokeh. Through decades of experience in lens design and Sigma Global Vision lens craftsmanship, the 20mm incorporates both “F” Low Dispersion (FLD) glass, and five Special Low Dispersion (SLD) glass in a design of 15 elements in 11 groups. The combination of advanced optics and optimized lens power distribution minimizes spherical aberration, axial chromatic aberration and field curvature, producing outstanding image quality. The wide angle and outstanding image quality make this lens great for seascape, cityscape, and astrophotography, as well as for photos in low light, indoor photography, portraits, and event and wedding photography.
“To offer an ultra-wide-angle 20mm focal length and F1.4 brightness at wide-open aperture, this lens incorporates a large double aspherical lens 59mm in diameter.” Left side: The aspherical glass element incorporated in the SIGMA 18-35mm F1.8 DC HSM | Art、Right side: The aspherical glass element incorporated in the SIGMA 20mm F1.4 DG HSM | Art.
“While many saw the development of a 20mm lens for today’s super-resolution DSLRs as challenging, Sigma approached it head-on utilizing our advanced manufacturing technologies to create the world’s first 20mm F1.4 ultra-wide-angle lens,” said Mark Amir-Hamzeh, president of Sigma Corporation of America. “This new lens is a result of years of experience by the company’s optical engineers in developing state-of-the-art lens designs and proven production knowledge, and high-precision craftsmanship by our factory team in Aizu, Japan.”
“From an early stage in the lens design process, flare and ghosting have been measured to establish an optical design resistant to strong incident light sources such as backlighting. SIGMA’s Super Multi-Layer Coating reduces flare and ghosting to help photographers produce sharp and high contrast images even in backlit conditions. The included lens hood can be attached to block out extraneous light, which can have a negative effect on rendering performance.” Image Courtesy of Sigma
From the start of the design process, Sigma took steps to minimize flare and ghosting, and established an optical design that is resistant to strong incidental light sources such as backlight with its Super Multi-Layer Coating. As with all Sigma Global Vision lenses, the 20mm F1.4 lens incorporates the latest Sigma technology, including an optimized autofocus (AF) algorithm for smooth, fast, and accurate focusing. In addition, Thermally Stable Composite (TSC) compound material is used, which has a high affinity to metal parts, consistently performs well at extreme temperatures, and reduces the size and weight of the lens.
This lens is compatible with Sigma’s USB Dock, (sold separately) which allows photographers to update the lens’ firmware, adjust focus points and customize full-time manual focus over-ride function settings using Sigma’s Optimization Pro software. A new metal lens cap (LC907-02) is also available as a separate accessory for $23.
Sigma’s USB Dock, (sold separately)
The Sigma 20mm F1.4 Art lens will also feature:
“The Hyper Sonic Motor (HSM) ensures silent, high-speed autofocusing, while the optimized AF algorithm helps realize even smoother AF performance. At any time during AF, users may access MF simply by rotating the focus ring. This feature makes faster focus adjustment possible, since there is no need to use the AF/MF focus mode switch. Also, the optional SIGMA USB DOCK allows the user to set the lens to conventional full-time manual focus override. Note: The operation of full-time MF may vary based on mount type.”
- A Hyper Sonic Motor (HSM) that ensures a silent, high-speed AF function. Smoother AF is achieved when the this AF algorithm is optimized
- A nine-blade, rounded diaphragm creates an attractive blur to the out-of-focus areas of the image
- A brass bayonet mount of highly precise and durable construction to enhance mount’s strength and long-term wear resistance
- Specifications: Weight of 33.5 ounces; a diameter and length of 3.6 inches by 5.1 inches; a minimum aperture of F16; and angle of view (35mm) of 94.5°; minimum focusing distance of 10.9 inches; and a maximum magnification ratio of 1:7.1
Sigma fans can feel confident knowing that every 20mm lens that leaves Japan’s factory has been tested using Sigma’s own modulation transfer function (MTF) measuring system, “A1.” Other prime lenses in the Art line include: 24mm F1.4 DG HSM, 30mm F1.4 DC HSM, 35mm F1.4 DG HSM, and 50mm F1.4 DG HSM.
For information about Sigma, go to www.sigmaphoto.com or follow the company on Twitter, Instagram and Facebook.
About Sigma Corporation
Since 1961, Sigma has worked toward a single, simple goal: To imagine and develop photographic technologies that push the envelope, empower photographers and produce unparalleled imagery. We’ve honored this commitment by maintaining control of our design, research and development, and manufacturing processes in our own Aizu Factory. Our products are built with premium materials and are known worldwide for quality and performance. Our family-owned organization is the largest, independent SLR lens manufacturer in the world, producing more than 45 lenses that are compatible with most manufacturers, including Sigma, Canon, Sony, Nikon, Olympus, Panasonic and Pentax. Sigma Corporation also produces digital SLR cameras and high-definition digital compact cameras. The company is headquartered in Japan, with offices strategically located throughout Europe, Asia and North America. Photography is all we do, and it’s all we’ve ever done.
You can pre-order / buy the Sigma 20mm F1.4 DG HSM Art lens at B&H:
