Uni-Media Press

Sigma has announced the APO Macro 180mm F2.8 EX DG OS HSM, an image stabilized telephoto macro lens. The company claim it is the first 180mm macro to combine 1:1 reproduction with an F2.8 maximum aperture. It offers a closest focusing distance of 47cm (18.5 inches) and includes the company’s optical stabilization and ‘FLD’ fluorite-like glass elements. An internal focus design and ring-type HSM focus motor allow full-time manual focus override. Pricing and availability will be announced later.

Sigma Corporation, a leading researcher, developer, manufacturer and service provider of some of the world’s most impressive lines of lenses, cameras and flashes, is pleased to announce the Sigma APO Macro 180mm F2.8 EX DG OS HSM, the world’s first 180mm macro lens that offers a magnification ratio of 1:1 and a large maximum aperture of F2.8.

As the successor to Sigma’s earlier 180mm F3.5 EX DG macro lens, the new APO Macro 180mm F2.8 EX DG OS HSM lens now boasts the company’s proprietary Optical Stabilizer (OS) technology and a wide F2.8 aperture to allow faster shutter speeds for narrow depth of field. With the OS feature, this lens offers the use of shutter speeds approximately four stops slower than would otherwise be possible, enabling handheld close-up photography. Three “F” Low Dispersion (FLD) glass elements, which have a performance equal to fluorite glass, are included to provide correction for color aberrations, and an inner focusing system minimizes aberrations that occur as shooting distances change.

“Our first 180mm macro was very popular with macro photographers and we’re certain that discerning photographers will be very impressed with its new technical and performance upgrades. The Optical Stabilizer technology and faster maximum aperture will make it even easier for users to capture the close-up, intricate details in the tiny world around them,” said Mark Amir-Hamzeh, president of Sigma Corporation of America. “We’ve released some really incredible products in the past year – there’s truly something in our lineup for every type and level of photographer.”

Equipped with the Super Multi-Layer Coating feature, the APO Macro 180mm F2.8 EX DG OS HSM lens reduces flare and ghosting and delivers sharp and high contrast images, even at the maximum aperture. The incorporation of Sigma’s Hyper Sonic Motor (HSM) ensures quiet and high-speed autofocus, as well as full-time manual focus capability. The macro lens has a rounded nine-blade diaphragm to create an attractive blur to the image’s out-of-focus areas. At 1:1 magnification, this lens has a focusing distance of 18.5 inches, which is a greater working distance than shorter focal length macro lenses, making it advantageous when taking pictures of highly sensitive subjects like butterflies.

The announcement was made at the Consumer Electronics Show (CES) 2012 in Las Vegas, NV, where Sigma Corporation is exhibiting this week in the Las Vegas Convention Center’s Central Hall at booth 8960. The company also announced the launch of a new product line and two new lenses that are specifically designed for use with Micro Four Thirds and E-mount mirrorless interchangeable lens camera systems. The pricing and availability of all of these new lenses are pending.

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Sigma has released version II of its 18-200mm F3.5-6.3 DC OS HSM superzoom lens. The latest version adds Sigma’s FLD glass, the ‘fluorite-like’ glass co-developed with Hoya and features a revised design (it now features a narrower body and 18 elements in 14 groups, rather than the 13 groups of its predecessor). The lens will be available for Canon, Nikon, Sigma, Pentax and Sony systems (without optical stabilization on the last two mounts). MSRP will be $720.

The Sigma Corporation is pleased to announce the release of the SIGMA 18-200mm F3.5-6.3 II DC OS HSM. This 11.1x high zoom ratio lens is designed exclusively for digital SLR cameras, incorporates Sigma’s original OS (Optical Stabilizer) function and offers a broad shooting range from wide angle to telephoto.

The SIGMA 18-200mm F3.5-6.3 II DC OS HSM is the successor to the SIGMA 18-200mm F3.5-6.3 DC OS/ HSM which was launched in June 2007. The lens is ideal for travel photography with a compact construction and length of just 87.7mm. This lens features FLD (“F” Low Dispersion) glass elements, which have the performance equal to fluorite glass, and SLD (Special Low Dispersion) glass elements providing excellent correction of color aberration. Aspherical lenses give excellent correction for all types of aberration and distortion. The Super Multi-Layer Coating reduces flare and ghosting, ensuring high quality images throughout the entire zoom range. Sigma’s OS (Optical Stabilizer) system offers effective correction of approximately 4 stops, enabling easy handheld photography. HSM (Hyper Sonic Motor) ensures quiet, high-speed auto focus and the inner focus system eliminates front lens rotation, making the lens particularly suitable for using the supplied petal-type lens hood and circular polarizing filters. The rounded 7 blade diaphragm creates an attractive blur to the out of focus areas of images.

* Sony and Pentax mounts do not incorporate Optical Stabilization

SIGMA 18-200mm F3.5-6.3 II DC OS HSM specifications

* FLD glass is the highest level low dispersion glass available with extremely high light transmission. The 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.
* Vignetting will occur if the lens is used with image sensor larger than APS-C size or 35mm SLR, and APS Film SLR cameras.
* For Pentax mount, auto focus will not be available on Pentax ist* series and K100D.
* The appearance and specification are subject to change without notice.

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Sigma has announced pricing and availability for its 105mm F2.8 EX DG OS HSM Macro lens. The optically stabilized version of the lens, originally announced back in February, is available now with a recommended selling price of $1,400. The 105mm F2.8 EX DG OS HSM offers true 1:1 macro reproduction, and uses a floating focus system to maintain high optical performance at all distances.

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, is pleased to announce that its newly upgraded 105mm F2.8 EX DG OS HSM Macro lens is now available for the MSRP of $1,400.

The updated 105mm F2.8 EX DG OS HSM Macro lens now features Sigma’s own proprietary Optical Stabilizer (OS) technology, which allows for high-performance, handheld, close-up photography. The telephoto reach makes it a perfect lens for capturing images of insects and small creatures. Additionally, the wide maximum aperture combined with a short telephoto focal length make it very favorable for facial portraiture at lower magnification. A Special Low Dispersion (SLD) lens and one high refractive index SLD lens provide excellent corrections for all types of aberration and distortion.

“This lens is a fantastic addition to our extensive lineup of macro lenses,” said Mark Amir-Hamzeh, president of Sigma Corporation of America. “This is our fourth prime macro lens and the second of which that now includes our Optical Stabilization technology, which steadies the image for handheld use. This is yet another example of Sigma’s dedication to providing an array of unique lens that capture incredible imagery.”

Sigma’s Hyper Sonic Motor (HSM) feature ensures quiet and high-speed autofocus as well as full-time manual focus capability. This lens also has a rounded nine-blade diaphragm that creates an attractive blur to the out-of-focus areas of the image.

The 105mm F2.8 EX DG OS HSM Macro features a floating focusing system that moves two different lens groups in the optical path to different positions. This system compensates for astigmatic aberration and spherical aberration, and provides extremely high optical performance from infinity to 1:1 macro. The super multi-layer coating reduces flare and ghosting, providing high contrast images. It is also possible to use this lens with Sigma’s APO teleconverters.

This announcement comes as part of an ongoing celebration of the company’s 50th anniversary. Find out about special anniversary activities and features, including product videos, photo sharing, photography tips and monthly chances to win Sigma products by visiting the anniversary web page.

For information about Sigma Corporation of America, visit www.sigmaphoto.com. For more information about sigma’s lenses, visit http://www.sigmaphoto.com/shop/lenses.

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Sigma has announced the pricing and availability of the stabilized versions of its 120-300mm F2.8 telezoom lens. The 120-300mm F2.8 EX DG OS APO HSM will have an MSRP of $4,700. The lens, which features Sigma’s latest FLD low-dispersion glass is available now in Canon, Nikon and Sigma mounts.

Sigma Corporation’s New, Optically Stabilized 120-300mm F2.8 Now Shipping in US

RONKONKOMA, N.Y., June 1, 2011 – 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, has announced that its updated 120-300mm F2.8 EX DG OS APO HSM is now available for purchase in the U.S. for the MSRP of $4,700.

The upgraded version of the Sigma 120-300mm F2.8 EX DG OS APO HSM will replace its predecessor as the essential Sigma lens for sports and wildlife photographers. The fast, fixed-aperture telephoto zoom will now feature some of the company’s new “F” Low Dispersion (FLD) glass elements and a splash-proof design which protects from “water spattering” as buttons and connections benefit from O-ring sealing connections to prevent dust and water getting inside the camera body. It also boasts Sigma’s proprietary Optical Stabilizer (OS) system, which will enable handheld photography and the use of shutter speeds approximately four stops slower than would otherwise be possible.

“This lens is a must-have for sports and wildlife photographers,” said Mark Amir-Hamzeh, president of Sigma Corporation of America. “Think of this as a prime 300mm F2.8 in terms of its ultra-high resolution, with the added bonus of it being an F2.8 constant-aperture zoom lens that allows the photographer to recompose the scene anywhere from 120mm to 300mm without having to change their capture position. There’s really no other lens like it.”

The versatile lens is designed for use with full frame digital SLR cameras but may also be used with smaller APS-C size sensors with a corresponding effective increase in focal length to approximately 180-450mm with most cameras. The Hyper Sonic Motor (HSM) ensures quiet and high speed auto focus, while allowing full-time manual focus override. The maximum aperture remains constant at F2.8 throughout the entire zoom range. The addition of the optional Sigma 1.4x APO teleconverter effectively makes this lens a 168mm to 420mm F4.0 lens. Adding the Sigma 2x APO teleconverter makes this lens a 240-600mm F5.6 lens (full autofocus operation is possible using the Sigma 120-300mm F2.8 EX DG OS APO HSM and either the 1.4x APO or the 2x APO teleconverter in Sigma, Canon and Nikon mounts).

One SLD and two FLD glass elements, which are comparable in optical performance to fluorite glass, provide maximum correction of chromatic aberrations. The super multi-layer coating reduces flare and ghosting, and the lens design incorporates an inner focusing and inner zooming system to ensure sharp images throughout the entire zoom range. Improved optical performance provides excellent correction of sagittal coma flare and ensures ultra-high resolution, comparable to a fixed focal length lens.

To locate an authorized Sigma dealer near you, visit http://www.sigmaphoto.com/where-to-buy-sigma. To use Sigma’s new Lens Finder Tool to find the best glass to suit your needs, visit http://www.sigmaphoto.com/sigma-lens-finder.

About Sigma Corporation
For 50 years, Sigma Corporation’s expertise and innovation has driven the company’s core philosophy of “knowledge, plus experience, plus imagination,” with an emphasis on producing high-quality, high-performance photographic technology at moderate prices. This family-owned organization is the largest, independent SLR lens manufacturer in the world, producing more than 40 lenses that are compatible with most manufacturers, including Sigma, Canon, Sony, Nikon, Olympus 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. For information, please visit www.sigmaphoto.com.

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Sigma has announced details of the pricing of its SD1 APS-C 15x3MP DSLR, saying it is aiming at users currently shooting medium format. The camera, based on the technology of Sigma’s sensor development company Foveon, captures information about three colors for each of its 15 million pixels, rather than just one color per pixel in conventional, ‘Bayer’ designs. This gives 46 million pieces of color information. It is the company’s first move away from the 4.7x3MP sensors used in its existing DSLRs and DP-series fixed lens large sensor compacts. The SD1 features the ability to shoot at 5 frames per second, offers a 3.0″ 460,000 dot LCD screen and an 11-point AF system. It is based around the company’s own SA lens mount. Cameras will available from the end of June at a price of $9,700 in the US and £6,199.99 (inc VAT) in the UK.

NY, May 20, 2011 – 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, is pleased to announce that its flagship DSLR, the Sigma SD1, will be available for purchase for the MSRP of $9,700 in early June.

This 46-megapixel DSLR is delivered in a splash-proof, easy-to-handle build that is similar to that of a classic 35mm camera. Professional and high-end enthusiast photographers will utilize the SD1’s exclusive Foveon 23.5×15.7mm APS-C X3 direct image sensor to capture exceptionally rich and detailed images that have a film-like quality. Users will also benefit from Sigma’s wide selection of interchangeable lenses that are compatible with the SD1.

“The SD1 will carve out a new category in the marketplace by providing high-end photographers with an alternative to very expensive medium-format cameras and digital backs, while offering unrivaled image quality,” said Mark Amir-Hamzeh, president of Sigma Corporation of America. “By embracing the SD1, serious photographers will also be able to take advantage of Sigma’s extensive lineup of affordable lenses, which are compatible with this new camera. The selections of lenses for medium-format cameras on the market are somewhat limited, so this will be a huge advantage for SD1 users. This is undoubtedly a very special camera, and we’re thrilled to share it with the photo community.”

In addition to the 23.5×15.7mm APS-C X3 direct image sensor, the Sigma SD1 features dual “Three-layer Responsive Ultimate Engine (TRUE) II” image processing engines, which improves processing speed, provides high resolution power and produces high-definition images with richly graduated tones.  It also allows simultaneous RAW and JPEG recording, which is a first for Sigma cameras. Additionally, the photographer has the option to select full-size, half-size or quarter-size RAW files making it a more versatile camera for a wide range of photographers. The Foveon sensor uses three silicon-embedded layers of photo detectors, stacked vertically to take advantage of silicon’s ability to absorb red, green and blue light at different respective depths. This technology efficiently reproduces color more accurately and offers sharper resolution, pixel for pixel, than any conventional image sensor. Since color moiré is not generated, the use of a low-pass filter is not required.

The optical format of the Foveon sensor has been upgraded from that which was used in previous SD cameras, and has increased from 1.7x focal length to the 1.5x focal length multiplier. The SD1 also benefits from improved image processing and noise reduction algorithms, with an ISO sensitivity range from 100 to 6400. This is two full stops more sensitivity than the SD15, which has a maximum 1600 ISO.  An intuitive user interface and an impressive lightweight, yet solid magnesium alloy body and O-ring sealing connections that make the camera durable and splash proof are also key feature upgrades of the flagship SD1.

The SD1 adopts the TYPE 1 Compact Flash Card, and is UDMA-compatible enabling fast processing of large amounts of data. The autofocus system features an 11-point shifted twin cross type sensor, which improves AF accuracy. The SD1 features a 3.0 inch TFT color monitor. This 460,000 pixel resolution LCD monitor benefits from a wide viewing angle, making it easy to check focusing and composition. The SD1 can be used with more than 40 Sigma SA mount lenses such as ultra-wide, ultra-telephoto, macro and fisheye.

Sigma’s image processing software, Photo Pro 5.0, comes bundled with the camera and its simple operation allows quick and easy capture of the desired imaged.  Additional functions such as Loupe, Slideshow, Print, Convert to JPEG file and Batch White Balance settings are also incorporated into this software.

The Sigma SD1 will be available for the MSRP of $9,700 through select authorized Sigma dealers. For information about Sigma Corporation of America, visit www.sigmaphoto.com. For more information about the Sigma SD1 DSLR, visit http://www.sigmaphoto.com/shop/sd1-dslr-sigma or view the camera’s special page at www.sigma-sd.com/SD1.

Product Summary

46 megapixel 23.5×15.7mm APS-C X3 Full-color image sensor
The 46 effective megapixel (4,800×3,200×3 layers) and 44 recording megapixel (4,704×3,136×3 layers) 23.5×15.7mm APS-C X3 direct image sensor featured in the Sigma SD1 captures all primary RGB colors at each and every pixel location, ensuring the capture of full and complete color. Using three silicon-embedded layers of photo detectors, stacked vertically to take advantage of silicon’s ability to absorb red, green and blue light at different respective depths, it efficiently reproduces color more accurately, and offers sharper resolution, pixel for pixel, than any conventional image sensor. Since color moiré is not generated, the use of a low-pass filter is not required, meaning light and color, generated by the 46 megapixel APS-C X3 direct image sensor is captured with a three-dimensional feel.

Dual TRUE II image processing engine
The SD1 incorporates a dual “TRUE (Three-layer Responsive Ultimate Engine) II” image processing engine which improves the processing speed and overall quality of the final image. The unique image-processing algorithm provides high resolution power and reproduces high definition images with richly graduated tones.  In addition, the SD1 is Sigma’s first camera to allow simultanous RAW and JPEG recording.

Advanced DDR III buffer
To handle large volumes of color data at high speed, the SD1 uses DDR III buffer memory technology, which delivers class-leading performance. The SD1 features a continuous shooting speed of 5 frames per second and can capture up to 7 RAW images per sequence in continuous shooting mode.

CF card
The SD1 adopts the TYPE I CF Card. This camera is compatible with the UDMA enabling fast processing of large amounts of data.
* It is not possible to use Microdrives and TYPE II CF cards.

Intuitive user interface
The improved user interface provides faster and more convenient operation. Aperture and shutter speed can be set by their own dials. The exposure compensation button and exposure mode button are on top of the body for quick access. A Quick Set (QS) menu lets you easily change commonly used functions. To display the QS menu, simply press the QS button. QS menu 1 is for ISO setting, flash mode, metering mode and AF mode; QS menu 2 offers white balance, image quality, image size and color mode.

Magnesium body
The Sigma SD1 adopts a lightweight yet solid magnesium alloy body designed to withstand rough use and shocks in harsh conditions.

Splash proof design
Buttons and connections benefit from O-ring sealing connections to prevent dust and water getting inside the camera body.

Bright, wide-coverage viewfinder with integral pentaprism
The SD1 features a pentaprism viewfinder with 98% (vertical and horizontal) coverage, 0.95x magnification and an 18mm eye point. Diopter adjustment is provided over a range of -3 to +1.5 dpt.

Four metering modes
The SD1 features 77-segment Evaluative Metering, Center Weighted Average Metering, Center Area Metering and Spot Metering.Exposure can be manually adjusted to suit your needs. When difficult lighting conditions make appropriate exposure unclear, auto bracketing lets you take a sequence of shots of the same subject at three or five different exposure levels. Bracketing can be set in 1/3EV increments up to ±3EV(3levels) or ±1.7EV(5 levels).

11 point twin cross sensor
The autofocus system features an 11 point twin cross sensor. The shifted twin cross type sensor improves AF accuracy. Selecting the AF point can be done manually or automatically.

77-segment AE sensor
The SD1 features a new 77-segment AE sensor using advanced AE algorithms to improve exposure accuracy. Exact control coordinated with the 11 AF points achieves accurate exposure even in difficult lightning conditions.

Dust Protector
Most digital SLR cameras are vulnerable to dust entering the body. If dust and dirt adhere to the image sensor, it may appear in the photos. The lens mount of the SD1 is equipped with a dust protector and the area around it is sealed to prevent dust from entering the body. Even in the unlikely event of dust adhering to the image sensor, the dust protector can be removed easily for sensor cleaning.

Focal Plane shutter
The durable focal plane shutter mechanism has a life cycle of over 100,000 exposures and dramatically reduces generation of dust. The photographer can enjoy taking pictures with confidence that the image sensor is clean and protected from dust or dirt originating inside or outside the camera.

Two-motor system
Using a two-motor system with dedicated motors for mirror-drive and shutter charge reduces the vibration of mirror movement, thereby preventing camera shake. A mirror lock-up mechanism prevents further vibration when the shutter is released. Preventing camera shake is especially important for macro photography and when using ultra-telephoto lenses.

Noiseless image processing
ISO sensitivity can be selected from 100 to 6400. The SD1 captures light effectively and ensures noiseless image processing. The image sensor provides high definition with rich, graduated tones.

Large, highly visible 3.0” TFT color LCD Monitor
The SD1 camera features a 3.0 inch TFT color monitor. This 460,000 pixel resolution LCD monitor benefits from a wide viewing angle, making it easy to check focusing and composition.

Built-in flash with 17mm angle of coverage
The Sigma SD1 camera’s built-in flash has a guide number of 11 to cover a 17mm lens angle (equivalent to 25.5mm with a 35mm camera). The built-in flash can be synchronized to a shutter speed of up to 1/180 sec. The S-TTL automatic exposure system enables control of advanced flash photography.

SIGMA Photo Pro5.0 (Supplied)
The supplied image processing software, SIGMA Photo Pro 5, converts RAW data quickly and easily and describes full data of 46 megapixel resolution. A renewed interface design provides functional and convenient operation. Sigma PhotoPro allows easy operation, simply by moving a slider from left to right while looking at the particular image you took, you can get a photographic expression just as you like.  In addition, other functions such as Loupe, Slideshow, Print, Covert to JPEG file and Batch White Balance settings are incorporated into this software.

Dedicated BP-21 lithium-ion battery
The dedicated BP-21 lithium-ion battery is supplied as standard with the SD1. It takes about 150 minutes to fully charge with the supplied BC-21 battery charger. The optional SAC-4 AC adapter lets the Sigma SD1 run on AC power from a wall socket.

Optional lenses
The SD1 can be used with over 40 Sigma lenses such as ultra-wide, ultra-telephoto, macro and fisheyes which adopt the latest technology such as the FLD (“F” Low Dispersion) glass elements, which have the performance equal to fluorite glass, SLD glass, Aspherical lenses, Sigma’s own unique Optical Stabilizer function, Hyper Sonic Motor and Sigma’s Super Multi Layer Coating. They meet the various and demanding requirements of all types of photographers.

Sigma SD1 camera specifications

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In a group of releases, Sigma has unveiled an optically stabilized version of its 50-150mm F2.8 fast telephoto zoom for APS-C DSLRS. The 50-150mm f/2.8 EX DG APO OS HSM gives a field-of-view range equivalent to around 75-225mm on a 35mm system, but in a design that is smaller and lighter than full frame 70-200mm F2.8 designs. The latest, ‘OS’ version is claimed to offer the ability to get stable shots at shutter speeds four stops slower than without it. It features a completely revised optical design with 21 elements in 15 groups.

large aperture telephoto zoom lens with Optical Stabilisation

• Compact, lightweight, large aperture telephoto zoom lens
• Sigma’s proprietary Optical Stabilisation system
• Rounded 9 blade aperture
• HSM for fast and quiet autofocus
• Compatible with Sigma EX DG APO Tele-Converters

The Sigma Corporation is pleased to announce the new Sigma 50-150mm F2.8 EX DC APO OS HSM, designed especially for digital SLRs with an APS-C size image sensor.

Sigma’s proprietary OS (Optical Stabiliser) system enables hand held tele-photography by allowing the use of shutter speeds approximately 4 stops slower than would otherwise be possible.

Six SLD glass elements compensate for chromatic aberrations and provide high image quality throughout the zoom range. The Super Multi-Layer Coating reduces flare and ghosting and ensures sharp and high contrast images even at the maximum apertures.

The lens design adopts an inner focusing and inner zooming system to provide convenient handling and the HSM (Hyper Sonic Motor) ensures quiet and high speed autofocus while allowing full-time manual focus override.

This lens has a minimum focusing distance of 80cm (31.5”) and a maximum magnification ratio of 1:6.3. The rounded 9 blade diaphragm creates an attractive blur to the out of focus areas of the image. The addition of Sigma’s TELE CONVERTER 1.4x EX DG APO or 2x EX DG APO produces a 70-210 F4 AF telephoto zoom lens or 100-300 F5.6 AF telephoto zoom respectively.

Specifications:

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Sigma has introduced the 12-24mm F4.5-5.6 EX DG HSM II, an updated version of its ultra-wideangle zoom for full frame SLRs. It uses a revised optical formula which now incorporates now fewer than four elements made from its latest ‘F’ low dispersion glass, plus one SLD element, to minimise chromatic aberration. Four aspheric elements (three glass mold and one hybrid) are also employed to reduce distortion and other aberrations. The lens features an integrated hood and splash-proof design.

Ultra wide-angle lens designed for full frame digital SLR cameras

• Ultra wide angle of view
• One SLD and four FLD lens elements
• Splash proof design
• Minimum focusing distance of just 28cm
• HSM for fast and quiet autofocus

The Sigma Corporation is pleased to announce the new Sigma 12-24mm F4.5-5.6 DG HSM II.

One SLD and four FLD glass elements compensate for colour aberration and provide excellent image quality throughout the zoom range. Three glass mold elements and one hybrid aspherical lens give advanced performance in a compact and lightweight construction and the Super Multi-Layer Coating reduces flare and ghosting.

This lens has superior peripheral brightness and provides sharp and high contrast images even at the maximum apertures.

Incorporation of HSM (Hyper Sonic Motor) ensures quiet and high speed autofocus while allowing full-time manual focus override. This lens has a minimum focusing distance of 28cm (11.0″) throughout the entire zoom range and a maximum magnification ratio of 1:6.4. In addition, this lens features Sigma’s splash proof design for use in harsh conditions.

Specifications:

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Sigma has announced an entirely redesigned version of its 105mm F2.8 macro lens that incorporates optical image stabilization. The 105mm F2.8 EX DG OS HSM offers true 1:1 macro reproduction, and uses a floating focus system to maintain high optical performance at all distances. It also features a splash-proof barrel design and Sigma’s Hypersonic Motor for fast, silent autofocus coupled with full-time manual focus capability. The lens is designed for use on both full frame and APS-C SLRs.

Medium telephoto macro lens incorporating Sigma’s Optical Stabiliser

• Large aperture medium telephoto macro lens
• Sigma’s proprietary Optical Stabilisation system
• 1:1 Maximum reproduction ratio
• Rounded 9 blade diaphragm creates an attractive blur
• Splash proof design

The Sigma Corporation is pleased to announce the Sigma MACRO 105mm F2.8 EX DG OS HSM.

The successor to the Sigma MACRO 105mm F2.8 EX DG, introduced to market in June 2004, this large aperture medium telephoto macro lens incorporates the latest optical design technology, offering advanced performance for cloase-up photography. A Special Low Dispersion (SLD) lens and one high refractive index SLD lens provide excellent correction for all types of aberration and distortion.

A floating focusing system moves two different lens groups in the optical path to different positions. This system compensates for astigmatic aberration and spherical aberration and provides extremely high optical performance from infinity to 1:1 Macro.

The Super Multi-Layer Coating reduces flare and ghosting, providing high contrast images.
It is also possible to use this lens with Sigma’s optional APO Tele Converters. Sigma’s own proprietary OS (Optical Stabiliser) function helps with handheld close-up photography and the HSM (Hyper Sonic Motor) ensures quiet and high speed autofocus as well as full-time manual focus capability.

This lens features a splash resistant design for use in harsh conditions and a rounded 9 blade diaphragm creating a smooth blur to the out of focus areas of the image.

Specifications:

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Sigma has announced a price drop for its 70-200mm F2.8 EX DG OS HSM lens to $1,399, down from $1,699. The company says ‘the reason the price went down is to remain competitive in this category and incent sales for this very popular lens.’ The lens was amongst the first to incorporate Sigma’s FLD glass element. It is currently available for Canon, Nikon, Pentax, Sony Alpha and Sigma DSLRs.

Click here to read the press release (in Japanese)

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Sigma has released a function enhancing firmware update for its SD15 digital SLR. Firmware v1.01 adds a second Quick Set (Qs2) option for additional access to commonly used functions. It also adds a Key Sound cancellation function and improves the display quality of the LCD. The firmware is available for immediate download from the company’s website.

Click here to download firmware v1.01 for Sigma SD15

Related Product:

The Digital Photography BookScott Kelby, the man who changed the "digital darkroom" forever with his groundbreaking, #1 bestselling, award-winning book The Photoshop Book for Dig... Read More >

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This is an updated and newly revised edition of the classic book The Art of Photography (originally published in 1994), which has often been descri... Read More >

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