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 Monday, October 21, 2013
Sigma Logo
From Sigma:
 
Sigma Corporation of America Brings Sigma Safari Experience to PhotoPlus Expo 2013
 
Manufacturer offers hands-on photography demos, streams live video tutorials from show floor
 
RONKONKOMA, N.Y., Oct. 21, 2013 – Sigma Corporation of America, a leading researcher, developer, manufacturer and service provider of some of the world's most impressive lines of lenses, cameras and flashes, will kick off the Sigma Safari Experience on Thursday, October 24, the first day of PhotoPlus Expo (PPE) at the Javits Convention Center in New York City.
 
Visitors of Sigma’s PPE booth 537 this week will have an opportunity to test Sigma’s cameras and lenses as they photograph professional models who have been dramatically transformed with high-end makeup and styling to resemble safari animals. Sigma Pros Jennifer Rozenbaum, Kevin Ames and Lindsay Adler will be on hand to interact with shooters and teach live sessions from the Sigma Safari Experience area at 11 a.m., 1 p.m. and 3 p.m. ET each day of the show, Oct. 24, 25 and 26. These sessions cover lighting, posing and exposure, and will be live streamed to the Sigma website at http://www.sigmaphoto.com/sigma-safari-experience.
 
In addition to the hands-on testing and live tutorials, Sigma will offer show attendees and home viewers a chance to win several prizes through the event.
 
“This is our second year of offering a hands-on shooting experience in our booth and we are pleased to say that the models and level of engagement will be even better this year. Our Sigma Pros are eager to share their expertise and we’re really excited to be able to share the experience with audiences at the show and at home,” said Mark Amir-Hamzeh, president of Sigma Corporation of America.
 
Here’s a schedule of the live streaming #SigmaSafari tutorials:
 
Thursday, Oct. 24

  • 11a.m. ET – Kevin Ames: “Long Lens – Close up!”
  • 1 p.m. ET – Lindsay Adler: “Lighting for Mood”
  • 3 p.m. ET – Jennifer Rozenbaum: “Posing to Flatter Every Woman”

Friday, Oct. 25

  • 11 a.m. ET – Jennifer Rozenbaum: “Posing vs. Editing”
  • 1 p.m. ET – Kevin Ames: “Making Bokeh”
  • 3 p.m. ET – Lindsay Adler: “The One-Two Punch”

Saturday, Oct. 26

  • 11 a.m. ET – Lindsay Adler: “Analyze to Get the Shot!”
  • 1 p.m. ET – Jennifer Rozenbaum: “Posing Flow”
  • 3 p.m. ET – Kevin Ames: “Exposing Exposure”

Win prizes at Sigma’s booth (or online) each day of the show:

  • #SigmaSafari Sweeps: Two lucky Sigma fans – one at the show and one at home – will win a 35mm F1.4 DG HSM Art lens each day of the show! Fans can enter for a chance to win by testing gear at the Sigma Safari Experience shooting station in the Sigma booth and by registering their email address online, during the live broadcasts.

Sigma will have more than 45 products on display at PPE this year. Stop by the booth to see the latest lenses from the Global Vision line, including the recently announced 24-105mm F4 DG OS HSM and the 18-35mm F1.8 DC HSM | ART lenses. Sigma’s new USB Dock will also be available at the booth.
 
To find out more about Sigma’s Safari Experience, please visit http://www.sigmaphoto.com/sigma-safari-experience.

Category: Sigma News
Post Date: 10/21/2013 9:45:21 AM CT   Posted By: Sean
 Wednesday, October 16, 2013
Sigma 24-105mm f/4 DG OS HSM Lens
Sigma has officially announced the 24-105mm f/4 DG OS HSM lens that they inadvertently posted to their website on Monday. Oddly enough, they don't mention a suggested retail price for it.
 
From Sigma:
 
RONKONKOMA, NY — October 16, 2013 — Sigma Corporation of America a leading researcher, developer, manufacturer and service provider of some of the world's most impressive lines of lenses, cameras and flashes, today announced its newest addition to the Sigma Art line of lenses for full-frame cameras, the 24-105mm F4 DG OS HSM.
 
True to its categorization as a Sigma Art lens, the new 24-105mm F4 DG OS HSM is designed for artistic expression and top-notch image quality. This versatile lens covers the basic shooting range from wide to medium tele with an inner focusing system that eliminates front lens rotation, enhancing the lens stability and allowing the use of circular polarizing filters. It also boasts a constant aperture of F4, and contains Sigma’s proprietary Optical Stabilizer (OS) technology to compensate for camera shake. Moreover, it was designed to surpass the required quality inspection of every Global Vision lens with Sigma’s own modulation transfer function (MTF) “A1” measuring system to create new optical standard to align with the high-spec cameras on today’s market.
 
“For many years, Sigma users have been seeking a standard zoom lens in this range,” said Mark Amir-Hamzeh, president of Sigma Corporation of America. “The 24-105mm F4 DG OS HSM is yet another example of Sigma listening to its users and delivering new and innovative products with the highest image quality.”
 
Amir-Hamzeh added that this new lens combines the largest possible fixed aperture to zoom ratio that will maintain optimal integrity for many kinds of photography, including landscapes, architecture, portraiture and still-life. With a minimum focusing distance of 45cm and a maximum magnification ratio of 1:4.6, this lens is also excellent for close-up photography.
 
High-performance glass elements, including SLD, FLD, which is equal to fluorite, and glass-molded single- and double-sided aspheric lenses have been included into the optical system to prevent aberration, field curvature, distortions and color aberration. The 24-105mm F4 DG OS HSM lens is also able to suppress chromatic aberration very effectively at the telephoto-end, and can achieve superior image quality throughout the zoom range. Unlike lenses with similar specifications, this lens overcomes low peripheral brightness. Although it is designed for full frame cameras, it also works with APS-C sensors, giving an increase to focal length.
 
The lens’ Hyper Sonic Motor (HSM) ensures a silent, high-speed auto focus function and enables full-time manual focusing capability. The 24-105mm is also compatible with Sigma’s USB dock allowing photographers to update its firmware and change focus parameters using Sigma's Optimization Pro software. It is also compatible with Sigma’s recently announced Mount Conversion Service.
 
Lens Specifications:

Lens Construction19 elements in 14 groups
Minimum apertureF/22
Filter size82mm
Angle of view (35mm equivalent)84.1°-23.3°
Minimum focusing distance45cm / 17.7in
Dimensions (Diameter x Length)88.6mm x 109.4mm / 3.5in x 4.3in
Number of diaphragm blades9 (rounded diaphragm)
Maximum magnification ratio1:4.6
Weight885g / 31.2oz

Category: Sigma News
Post Date: 10/16/2013 6:49:35 AM CT   Posted By: Sean
 Monday, October 14, 2013
Sigma 24-105mm f/4 DG OS HSM Lens
Although I haven't seen an official announcement by Sigma just yet, a 24-105mm f/4 DG OS HSM "Art" lens is already featured on Sigma's website.
 
Lens Specifications:

Lens Construction19 elements in 14 groups
Minimum apertureF/22
Filter size82mm
Angle of view (35mm equivalent)84.1°-23.3°
Minimum focusing distance45cm / 17.7in
Dimensions (Diameter x Length)88.6mm x 109.4mm / 3.5in x 4.3in
Number of diaphragm blades9 (rounded diaphragm)
Maximum magnification ratio1:4.6
Weight885g / 31.2oz

Update: It looks like Sigma removed the webpage from their server. However, an official announcement is surely not far off.

Category: Sigma News
Post Date: 10/14/2013 12:15:56 PM CT   Posted By: Sean
 Friday, October 04, 2013
Sigma 18-35mm f/1.8 DC HSM Lens
Sigma has announced that the Nikon version of its wide aperture zoom – the 18-35mm f/1.8 DC HSM – will "start shipping soon."
 
Adorama has the Sigma 18-35mm f/1.8 DC HSM for Nikon available for preorder.
Posted to: Nikon News
Category: Sigma News
Post Date: 10/4/2013 6:15:51 AM CT   Posted By: Sean
 Friday, September 20, 2013
Sigma Logo
From Sigma:
 
Sigma Optimization Pro 1.1:
 
Even after the update of lens firmware, this updated version of software will allow customers to secure all the settings and adjustment values of AF and OS that are customized via the USB DOCK. Please update to Ver1.1 before operating firmware update of 17-70mm F2.8-4 DC MACRO OS HSM C013 and 35mm F1.4 DG HSM A012. When the latest version of SIGMA Optimization Pro is released, users of the previous version will be notified with a pop-up window when the software starts up with an internet connection.
 
Download: Sigma Optimization Pro 1.1: Windows | Macintosh
 
------------------------------------------------------------------------------------------------
 
Sigma 35mm f/1.4 DG HSM Firmware 1.02:

  • Refined AF algorithm to reduce the operating noise.
  • Improved smoothness of AF as it starts up and stops.

* Please update to SIGMA Optimization Pro Ver1.1 before operating firmware update of 35mm F1.4 DG HSM A012.
 
You can download the Sigma 35mm f/1.4 DG HSM Firmware 1.02 via Optimization Pro 1.1.
 
Sigma 17-70mm F2.8-4 DC Macro OS HSM Firmware 1.01:

  • Improved stability of the Optical Stabilizer's operation.
  • Refined AF algorithm to reduce the operating noise.

* Please update to SIGMA Optimization Pro Ver1.1 before operating firmware update of 17-70mm F2.8-4 DC MACRO OS HSM C013.
 
You can download the Sigma 17-70mm F2.8-4 DC Macro OS HSM Firmware 1.01 via Optimization Pro 1.1.
 
Adorama carries the Sigma 35mm f/1.4 DG HSM, Sigma 17-70mm F2.8-4 DC Macro OS HSM and the USB Dock.

Category: Sigma News
Post Date: 9/20/2013 7:18:31 AM CT   Posted By: Sean
 Wednesday, September 18, 2013
Sigma Logo
From Sigma:
 
Thank you for purchasing and using our products.
 
We'd like to announce that we are going to introduce SIGMA Optimization Pro Ver. 1.1, an update to the dedicated software for the SIGMA USB DOCK, in the end of September.
 
Even after the update of lens firmware, this updated version of software will allow customers to secure all the settings and adjustment values of AF and OS that are customized via the USB DOCK.
 
As SIGMA USB DOCK users, please be sure to update to SIGMA Optimization Pro Ver1.1 from the following page, before operating any lens firmware updates.
 
http://www.sigma-global.com/download/
 
Moreover, as the new version of SIGMA Optimization Pro becomes available, we are planning to update lens firmware for 35mm F1.4 DG HSM A012 for Canon mount as well as 17-70mm F2.8-4 DC MACRO OS HSM C013 for Sigma, Canon and Nikon mounts.
 
We appreciate your continuing support for our company and products.
 
Adorama carries the Sigma 35mm f/1.4 DG HSM and 17-70mm f/2.8-4 DC Macro OS HSM global vision lenses.
Category: Sigma News
Post Date: 9/18/2013 8:21:09 AM CT   Posted By: Sean
 Friday, August 02, 2013
Sigma Logo
From Sigma:
 
Sigma Corporation(CEO: Kazuto Yamaki, Location: Kawasaki, Japan) has established, Sigma China in Shanghai, China. Sigma China is formed as a solely owned subsidiary of Sigma Corporation and operations started on August 1st, 2013.
 
Purpose:
 
We established a subsidiary in Shanghai to fulfill sales, brand management and customer support in the growing Chinese market.
 
We intend to construct an efficient sales and logistics network and we believe that this will enable us to provide a complete line-up of our products, build brand image as well as offer a good after-sales service.
 
Summary

Corporate NameSIGMA (CHINA) CO., LTD.
Office LocationShanghai, China
Business MissionPurchase, sales and servicing of optical equipment
CEOKazuto Yamaki
Employees12
Capital$1.22 million USD
Investment RatioSolely owned by Sigma Corporation
BusinessCommencement date August 1st, 2013

Adorama carries Sigma lenses.

Category: Sigma News
Post Date: 8/2/2013 7:56:08 AM CT   Posted By: Sean
 Thursday, August 01, 2013
Sigma Logo
From Sigma:
 
RONKONKOMA, N.Y., - Aug. 1, 2013 - Sigma Corporation of America, a leading researcher, developer, manufacturer and service provider of some of the world’s most impressive lines of lenses, cameras and flashes, today announced a revolutionary new, fee-based service that will enable the company’s Global Vision lens owners to change their lens mounts for use on different camera systems.
 
Starting Sept. 2, Global Vision lens owners can request the Mount Conversion Service to convert their current Sport, Contemporary or Art DSLR lenses to their choice of a Sigma, Sony, Pentax, Nikon or Canon mount. Global Vision category lenses for mirrorless interchangeable lens cameras (MILCs) can be updated to either a micro four thirds (MFT) or Sony E- mount.
 
In addition to the announcement of the industry’s first Mount Conversion Service, Sigma is also extending the warranty on all of its products - including cameras, lenses and flashes purchased on or after July 1, 2013 - to four years. Previously, warranties varied by product. This enhanced product protection provides Sigma’s customers with more consistency and improved service.
 
“Professionals and amateurs alike are taking advantage of the many affordable camera options in today’s market; they’re updating their camera bags and exploring new systems and brands,” said Mark Amir-Hamzeh, president of Sigma Corporation of America. “When photographers purchase a lens, it’s often a significant, financial and artistic commitment - and we believe that investment should last a lifetime. Our new Mount Conversion Service and extended warranty are intended to help Sigma users get more enjoyment from our products, regardless of how their approach to photography changes overtime.”
 
The Mount Conversion Service is limited to all of Sigma’s Global Vision lenses. Current, applicable full-frame lenses include the 120-300mm F2.8 DG OS Sport and 35mm F1.4 DG Art; APS-C crop sensor lenses include the 30mm F1.4 DC HSM Art, 17-70mm F2.8-4 DC OS Macro Contemporary and 18-35mm F1.8 DC Art; and MILC lenses include the 19mm F2.8 DN Art, 30mm F2.8 DN Art and 60mm F2.8 DN Art. Lenses can be converted to any mount of a photographer’s choosing, as long as Sigma has released that product in the requested mount.
 
Cost of the conversion will range between $80 to $250, plus shipping costs, depending on the focal length of the lens. All lenses will be shipped to Sigma’s US subsidiary in New York, and updated, calibrated and optimized for the new camera system at Sigma’s factory in Aizu, Japan. All lenses that undergo the Mount Conversion Service will be covered under warranty for six months following the update. Teleconverters, USB Docks and other accessories are not eligible for the service.
 
To request the Mount Conversion Service, please visit your local Sigma subsidiary. Customers in the United States should visit www.sigmaphoto.com.
 
Check out applicable Sigma products at Adorama:

Category: Sigma News
Post Date: 8/1/2013 7:10:41 AM CT   Posted By: Sean
 Friday, July 26, 2013
Sigma 18-35mm f/1.8 DC HSM Lens
Adorama has started shipping the Sigma 18-35mm f/1.8 DC HSM Lens (for Canon) to preorder customers. If you're already in line, you can probably expect yours to arrive in the not-so-distant future. ;-)
Posted to: Canon News
Category: Sigma News
Post Date: 7/26/2013 7:19:18 AM CT   Posted By: Sean
 Friday, June 14, 2013
Sigma 18-35mm f/1.8 DC HSM Lens
From Sigma:
 
RONKONKOMA, N.Y., — June 14, 2013 — Sigma Corporation of America, a leading researcher, developer, manufacturer and service provider of some of the world’s most impressive lines of lenses, cameras and flashes, today announced that its new Sigma 18-35mm F1.8 DC HSM Art lens will arrive in the United States early July for the street price of $799.
 
As the market’s first zoom lens to achieve a maximum aperture of F1.8 throughout the entire zoom range, the 18-35mm was created for DSLR cameras with APS-C size sensors, which translates to a focal range of 27-52.5mm on a 35mm camera. This lens will be available early July in Sigma and Canon mounts, with Nikon, Sony and Pentax mounts to follow.
 
“Sigma users are really excited about this lens. They’ve been watching the new Art line very closely – and their reaction to our initial announcement of this lens has been fantastic,” said Mark Amir-Hamzeh, president of Sigma Corporation of America. “More than 50 years of innovating with photography equipment has helped us build new generation lenses like the 18-35mm F1.8. We’re confident that photographers who focus on landscape, portrait, still-life, studio, close-up and casual shots will love this lens.”
 
The 18-35mm F1.8 is the latest addition to the 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 F1.8 lens features 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. The lens’ Super Multi-Layer Coating reduces flare and ghosting and provides sharp and high contrast images, even in backlit conditions. Sigma’s Hyper Sonic Motor (HSM) ensures a silent, high-speed AF function, while its nine-blade, rounded diaphragm creates an attractive, round bokeh at large-aperture settings.
 
The 18-35mm F1.8 lens is also compatible with Sigma’s new USB Dock, which is available for the street price of $59, enabling photographers to update lens firmware and adjust focus parameters from their computers.
 
Preorder Opportunities:
 
B&H | Adorama
Category: Sigma News
Post Date: 6/14/2013 6:40:29 AM CT   Posted By: Sean
 Thursday, May 30, 2013
Sigma 120-300mm f/2.8 DG OS HSM Lens and USB Dock
From Sigma:
 
Introducing an industry milestone of lens customization. Fine tune the critical parameters of your 120-300mm f2/.8 lens with our proprietary USB Dock and Sigma Optimization Pro Software and you'll see:
 
This is more than an advance, it's an evolution.
 
---------------------------------
 
Autofocus Motor Speed
 
The overall speed of the AF motor can be adjusted when the AF is engaged.
 
Microfocus Adjustments
 
Fine-tune your lenses' response in multiple zones at all focal distances without having to send your camera in for adjustment.
 
Focus Limiter Setting
 
The Autofocus limiter range can be customized to keep the focal distance response zone exactly where you want it.
 
Lens Firmware Updates
 
Adjust your lens firmware and make updates yourself, even with new lens/camera communication protocols that aren't included in the previous chip. And do it all without service support.
 
Optical Stabilizer Customization
 
Dynamic, Standard and Moderate OS customization allows for control of the visual feel of the Optical Stabilizer through the viewfinder while framing the moment.
 
Multiple Custom Settings
 
The C1 and C2 switch on the lens allows for different customization presets for different situations – one for ballgame and another for birdwatching.
 
Learn more about Sigma's Optimization Pro Software and USB Dock.
 
B&H carries the Sigma 120-300mm f/2.8 DG OS HSM Lens for Canon and Sigma USB Dock.
Category: Sigma News
Post Date: 5/30/2013 2:57:56 PM CT   Posted By: Sean
 Tuesday, May 28, 2013
Sigma USB Dock
B&H expects a shipment of Sigma USB Docks to hit their inventory on or before Thursday. If you haven't already placed your preorder, now would be a good time to get in line.
Category: Sigma News
Post Date: 5/28/2013 5:29:49 PM CT   Posted By: Sean
 Friday, May 24, 2013
Sigma 120-300mm f/2.8 DG OS HSM Lens
From Sigma:
 
The Sigma 120-300mm F2.8 DG OS HSM for Nikon is scheduled to start the shipment towards the end of this month.
 
B&H has the Sigma 120-300mm f/2.8 DG OS HSM Lens for Nikon available for preorder.
Posted to: Nikon News
Category: Sigma News
Post Date: 5/24/2013 6:57:50 AM CT   Posted By: Sean
 Wednesday, April 24, 2013

 
While this video was mentioned in the previous announcement by Sigma, I wanted to call special attention to it. This is the first time we've been able to see the USB Dock software in action and, in my opinion, it looks very promising. [Sean]
 
B&H has the Sigma USB Dock (Canon/Nikon) available for preorder.
Category: Sigma News
Post Date: 4/24/2013 10:26:23 AM CT   Posted By: Sean
Sigma 120-300mm f/2.8-4 DG OS HSM Lens
From Sigma:
 
Global Vision products hit shelves in US early May
 
RONKONKOMA, N.Y., — April 24, 2013 — Sigma Corporation of America, a leading researcher, developer, manufacturer and service provider of some of the world’s most impressive lines of lenses, cameras and flashes, today announced the pricing and availability of the Sigma USB dock and the company’s newly redesigned 120-300mm F2.8 DG OS HSM from the Global Vision Sport lens category.
 
The updated 120-300mm F2.8 DG OS HSM lens will be available in early May for the street price of $3,599 in Sigma and Canon mounts. The USB dock, which is compatible with lenses from Sigma’s new Global Vision lineup, will also be available in early May for the street price of $59.
 
“As the first lens of our Sports lineup to become available, we’re glad to continue the next round of our Global Vision lenses with the 120-300mm F2.8,” said Mark Amir-Hamzeh, president of Sigma Corporation of America. “Our USB dock is the first in the industry of its kind, and we’re confident that it will be a ground-breaking product in helping photographers as they work.”
 
With redesigned mechanics and performance, this Sports lens is an update from its predecessor released in February 2011. With a maximum focal length of 300mm and a wide-open aperture of F2.8, this lens eases difficult shooting conditions. It is dust and moisture resistant, and allows users to switch between two custom settings created via the USB dock. The 120-300mm lens has been redesigned and quality-control tested with Sigma’s proprietary modulation transfer function (MTF) “A1” measuring system as part of Sigma’s new Global Vision category restructuring. Under the new Sports category, the lens also has the manufacturing year stamped on the barrel.
 
The Sigma USB dock, an industry first, works in conjunction with Sigma Optimization Pro (SOP) software to connect a photographer’s lens to their personal computer and the internet to update firmware and other parameters. The AF speed, focus limiter and OS function are also customizable for Sports lenses, such as the 120-300mm F2.8 DG OS HSM. Upon arrival of the products, SOP will be available via a downloadable copy online here. A video demonstration of SOP software is available here.
 
Preorder Opportunities:
 
Sigma 120-300mm f/2.8 DG OS HSM Lens for Canon - B&H | Adorama
Sigma 120-300mm f/2.8 DG OS HSM Lens for Nikon - B&H | Adorama
 
Sigma USB Dock for Canon - B&H
Sigma USB Dock for Nikon - B&H
Category: Sigma News
Post Date: 4/24/2013 10:13:41 AM CT   Posted By: Sean
 Thursday, April 18, 2013
Sigma 18-35mm F1.8 DC HSM Len
From Sigma:
 
Sigma Corporation announces world's first F1.8 constant aperture zoom lens
 
New 18-35mm F1.8 DC HSM features Global Vision Art lens design
 
RONKONKOMA, NY — 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 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.
 
Specifications

Lens Construction:17 elements in 12 groups
Minimum aperturef/16
Filter size:72mm
Angle of view (SD1):76.5°-44.2°
Minimum focusing distance11in
Dimensions (Diameter x Length):3.1 inches x 4.8 inches
Number of diaphragm blades:9 (rounded diaphragm)
Maximum magnification ratio:1:4.3
Weight:28.6 oz

Category: Sigma News
Post Date: 4/18/2013 6:51:29 AM CT   Posted By: Sean
 Friday, April 12, 2013
Sigma 120-300mm f/2.8 DG OS HSM Lens
From Sigma:
 
SIGMA 120-300mm F2.8 DG OS HSM & SIGMA USB DOCK
 
2013.04.12 - SIGMA 120-300mm F2.8 DG OS HSM for Canon and SIGMA USB DOCK for Canon are scheduled to start the shipment from the end of this month.
 
B&H has the Sigma 120-300mm f/2.8 DG OS HSM Lens for Canon available for preorder.
Posted to: Canon News
Category: Sigma News
Post Date: 4/12/2013 7:31:18 AM CT   Posted By: Sean
 Wednesday, March 27, 2013
Sigma Logo
From Sigma Japan (paraphrased from Google Translate):
 
2013.03.27
 
SIGMA 120-300mm F2.8 DG OS HSM, SIGMA USB DOCK Release Postponed
 
Thank you for your patronage.
 
The "SIGMA USB DOCK" and "SIGMA 120-300mm F2.8 DG OS HSM" lens were expected to be released in March 2013 for Canon. Because of a delay in the procurement of [manufacturing] parts, the release date has been postponed.
 
For now, the revised release date has not been determined. Please check our website for future updates on these products.
 
We apologize for the inconvenience.
 
B&H has the Sigma 120-300mm f/2.8 DG OS HSM Lens (Canon/Nikon) available for preorder.
Posted to: Canon News
Category: Sigma News
Post Date: 3/27/2013 7:04:53 AM CT   Posted By: Sean
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