RONKONKOMA, NY, Apr. 18, 2013 — Sigma Corporation of
America (www.sigmaphoto.com), a leading researcher, developer,
manufacturer and service provider for some of the world’s most
impressive lines of lenses, cameras and flashes, today announced the
Sigma 18-35mm F1.8 DC HSM Art lens, the market’s first zoom lens to
achieve a maximum aperture F1.8 throughout the entire zoom range.
This revolutionary, wide aperture, standard zoom lens is created for
DSLR cameras with APS-C size sensors, which translates to a focal range
of 27-52.5mm on a 35mm camera. With a minimum focusing distance of 11
inches, and a maximum magnification ratio of 1:4.3, the 18-35mm is ideal
for landscapes, portraits, still-life, studio, close-up and casual
photography.
“Exceptionally fast apertures were previously unavailable in zoom
lenses, so photographers turned to several prime lenses in a session to
get bright images at various focal lengths. We’re incredibly excited to
be the first manufacturer to bring the F1.8 standard zoom to the market
and to provide photographers with a new level of creativity and
convenience, with the outstanding image quality at the core of the new
Sigma Global Vision,” said Mark Amir-Hamzeh, president of Sigma
Corporation of America.
Amir-Hamzeh added that because developing a large aperture wide angle
zoom lens can prove to be technologically and optically challenging,
often resulting in various distortions, aberrations and field curvature,
Sigma has tapped into its long history as a lens pioneer to overcome
those issues in this new generation lens.
“Our experience with the wide angle designs of our 12-24mm F4.5-5.6
II DG HSM and our 8-16mm F4.5-5.6 DC HSM, and our research and
development in our Aizu factory have prepared us for this technological
advancement,” he said. “Our wide, glass-molded aspherical lens and the
incorporation of Special Low Dispersion (SLD) glass have optimized power
distribution of the optical elements and compensated for various
aberrations, as well as curvature of field at the widest angle. We’re
extremely proud of this achievement.”
The 18-35mm is the latest addition to the company’s company’s Art
line of lenses, designed under the new Global Vision. The Global Vision
lenses have a sleek new design with the manufacturing year stamped on
the barrel, and are categorized by use into one of three groups: Art,
Contemporary and Sports. The Art category delivers high-level artistic
expression through sophisticated and abundant expressive power.
The new 18-35mm lens incorporates Sigma’s improved AF/MF switch and
the use of Thermally Stable Composite (TSC) compound material, which has
a high affinity to metal parts, consistently performs well at extreme
temperatures, and reduces the size and weight of the lens. It is also
compatible with Sigma’s new USB Dock, which will be available in coming
months, enabling photographers to update lens firmware and adjust focus
parameters from their computers.
Convenient handling is achieved with internal focusing and zooming,
which prevents changes to the size of the lens. Additionally, the front
part of the lens does not rotate, so special filters like circular
polarizers can be used.
The 18-35mm lens’ Super Multi-Layer Coating reduces flare and
ghosting and provides sharp and high contrast images, even in backlit
conditions. The petal-type hood that is supplied with the lens will
provide extra protection from flare and ghosting. Sigma’s Hyper Sonic
Motor (HSM) ensures a silent, high-speed AF function and the optimized
auto focus algorithm results in smooth focusing and full-time manual
focusing capability. Lastly, the nine-blade, rounded diaphragm creates
an attractive, round bokeh at large-aperture settings.