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Tuesday, August 3, 2010

Sigma's new 70-200mm F2.8 EX DG OS HSM lens now available

Second-generation, zoom lens now optically stabilized and built with “F” Low Dispersion glass

Ronkonkoma, NY, Aug. 2, 2010 – 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 new, optically stabilized APO 70-200mm F2.8 EX DG OS HSM lens, which contains the company’s new “F” Low Dispersion (FLD) lens glass, is now available in the United States for the MSRP of $2,470.

The APO 70-200mm F2.8 EX DG OS HSM lens was first announced at the PMA International Convention in February and is currently available in Canon mounts. It will soon be available for purchase in Nikon, Sigma, Sony and Pentax mounts. This second-generation lens is designed for use with full-frame, DSLR cameras and may also be used with smaller, APS-c size sensors with a corresponding effective increase in focal length of 100-300mm with most cameras.

This new addition to Sigma’s lineup of more than 50 lenses covers a medium telephoto range of focal lengths from 70mm to 200mm with a large, maximum aperture of F2.8 throughout the entire zoom range. It’s revered for its incorporation of Sigma’s unique Optical Stabilization (OS) technology, which allows photographers to use shutter speeds approximately four stops slower than would otherwise be possible, while maintaining its predecessor’s compact dimensions. Moreover, the lens offers two modes of optical stabilization: The first is for general photography and the second is specifically designed for panning with moving subjects. Sony and Pentax shooters who are accustomed to the anti-shake system in their cameras are able to choose between that internal function and the lens’ OS capabilities.

“The 70-200mm has historically been a very popular lens in our collection of telephoto zoom lenses,” said Mark Amir-Hamzeh, general manager of Sigma Corporation of America. “With its large aperture, it’s impressively sharp in low-light situations and its zoom range makes it a versatile option for photographers and photojournalists on the go. It’s truly one of those all-occasion, must-have lenses.”

The 70-200mm F2.8 EX DG OS HSM also features Sigma’s Hyper Sonic Motor (HSM) technology, which ensures quiet and high-speed auto focus and full-time manual focus capability. The lens has a minimum focusing distance of 55.1 inches throughout the entire zoom range and a maximum magnification ratio of 1:8. The rounded, nine-blade diaphragm creates an attractive blur to the out of focus images. This lens is equipped with a petal-type hood and, for APS-C size image sensor cameras, it comes with a dedicated hood adapter that expands to the length of the lens hood.

The lens has two of Sigma’s new FLD glass elements. This is the highest level, low dispersion glass available and it has extremely high light transmission with a performance equal to fluorite glass. The new 70-200mm also has three Special Low Dispersion (SLD) glass elements for excellent correction of color aberration and Super Multi-Layer Coating to reduce flare and ghosting.

To locate an authorized Sigma dealer near you, visit To use Sigma’s Lens Finder Tool to find the best lens to suit your needs, visit For information about Sigma Corporation of America, visit

About Sigma Corporation
For nearly 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 50 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

Specifications for the Sigma APO 70-200mm F2.8 EX DG OS HSM

Lens Construction

22 elements in 17 groups

Angle of view


Number of diaphragm blades


Minimum aperture


Minimum focusing distance

140 cm/55.1 in.

Maximum magnification


Filter size



(Diameter x Length)

86.4x197.6 mm/3.4x7.8 in.


50.4 ounces

Corresponding AF mounts

Sigma, Canon, Nikon, Sony/Minolta, Pentax


  • The Pentax mount Tele Converter cannot be used with this particular lens
  • Nikon and Pentax mounts do not have an aperture ring. Some functions may not work depending on the camera model
  • For Nikon and Canon mounts, Optical Stabilizer (OS) function will not work with film SLR cameras except Nikon F6 and Canon EOS-1V
  • For Pentax and Sony mounts, it is not possible to use the AF and the built-in OS function of this lens when attaching it to film SLR cameras as well as Pentax *ist series and K100D
  • When using the OS function of a lens with a camera which incorporates a stabilizer unit, please turn the camera’s stabilizer unit off
  • The appearance, specifications, and the like of the product may be subject to change for improvement.

Hands On: BlackRapid RS-W1 (Its Not Pink) review

It's about time. Really. This is it. It's perfect. Almost (I'm sure little things will pop up later as I use it more). All the little annoyances with straps designed with men in mind have been fixed. The padded shoulder bit is narrower and curved to work better with our smaller shoulders and body shape, the strap is a bit shorter, yet still greatly adjustable. The length adjustment is up on the shoulder pad, with the strap part running through a sleeve in the pad itself (which I'll admit was problematic for a brief moment while sorting out shortening vs lengthening, and getting the lower plastic bits stuck up in the pad's sleeve, but I got it worked out). This allows for the slack, for those that need the strap shortened, to be taken up in the pad, rather than dangling and getting in the way (as I have found with the strap designed more with taller men in mind. The redesigned shoulder pad also allows the strap to stay in place on the shoulder better when the weight of the camera is not holding it down. I have often found the RS-7 slipping off my shoulder, or forward or back, while the camera was in my hands and not weighting down the strap.

At first I wasn't sure if I liked the use of the FastenR-3 rather than the FastenR-2. My thinking was, although it's lower profile, the one-piece design would give the connection apparatus just slightly less flexibility. Now, for general carrying and shooting that would be fine, but I thought that the lack of hinged ring that the carbiner hooks to would be annoying while packing, unpacking, and general arranging of cameras and straps. Actually I have found the opposite to be true. With the lower profile and single piece, I find that I do less fiddling with it to get things straightened around. Plus it all fits better in my camera bag.

On the downside, the strap is designed to be used only left shoulder to right side. With the unique shaping of the shoulder pad it really does have to be one-sided. I can't think of a way around that. It CAN be worn right shoulder to left side but you lose a lot of the fit and comfort that the shaped shoulder pad provides. Flipping the pad over is not a viable option either as the length adjustment buckle would be against the shoulder. However, this is such a well-fitting strap it's an adjustment I'm willing to make. To make the shoulder pad mirror-imaged on either side to allow for both a left-sided and right-sided carry, the through-the-strap length adjustment would have to be sacrificed.

After a day-long shoot using the RS-W1, I found that it did not shift much at all. While using the RS-7 at the same time, and on separate occasions, I would find that the shoulder pad would need adjusting on a regular basis to keep it up on the shoulder where is belonged. The RW-W1 does a much better job staying in place on smaller shoulders as it is intended. When both the RS-7 and the RS-W1 were used at the same time, crossing over (alternating which overlapped which), the RS-W1 consistantly required less adjusting and re-adjusting as the day went on.

The black on black paisly designs on the shoulder pad of the RS-W1 is a nice touch. Just a little bit of style without being overbearing. For comfort and a convenient carry, I would definitely recommend this strap to my female shooter friends.

(photos from the BlackRapid website)

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