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By admin, on July 30th, 2013
According to latest Rumors Sigma will start free mount conversion service, it will change the mount on your Sigma lens to a new mount, So if change you camera bodies from Canon to Nikon OR Nikon to Canon then you don’t have to buy new Sigma lenses again. The service is for Sigma Lenses ONLY , it will not change your Canon lenses mount to Nikon…
src-PhotoRumors
By admin, on April 20th, 2013
Sigma 18-35mm f/1.8 DC HSM Lens sample images now available, see the 18-35mm f/1.8 announcement page for more details.
Take a look at the sample images here – bit.ly/13notj6
Sigma 18-35mm f/1.8 Lens + Full Frame Camera (5D Mk II) – bit.ly/Z8yBOe
By admin, on January 22nd, 2013
Sigma patent a 25 mm F1.4 micro four third lens, the patent is spotted by patent hunting blog Egami.
Patent Details
- Patent Publication No. 2013-3324
- 2013.1.7 Release Date
- Filing date 2011.6.16
- Example 2
- Focal length f = 25.00mm
- Fno. 1.44
- 2ω = 48.61 ° angle of view
- Nine lens elements in 7 groups configuration
- Two three-sided aspherical
- (More than n = 2.00) one high refractive index glass
- Four groups of positive and negative positive negative
- Inner Focus (group 3)
By admin, on January 7th, 2013
The Sigma Corporation is pleased to announce the release of the new SIGMA USB DOCK, the accessory dedicated for Contemporary, Art, and Sports product lines that enables you to operate lens firmware update as well as customization including the focus setting.
By connecting the USB cable to a computer, SIGMA USB DOCK enables photographers to update the lens firmware and adjust parameters such as focus. The adjustment is processed with special software (SIGMA Optimization Pro). The AF speed, focus limiter and OS function are also customizable for Sports lenses.
By admin, on January 7th, 2013
The Sigma Corporation is pleased to announce the release of the new SIGMA 120-300mm F2.8 DG OS HSM, the telephoto zoom lens that achieves superior performance redesigned to meet photographers’ needs.
Conventionally, large aperture lenses for 300mm F2.8 have been loved by professional users due to their brilliant capability of depiction and bright aperture value. It has established a solid standpoint in the world of photography. Based on the concept that turning a 300mm F2.8 lens into zoom lens would enable photographers to expand the scope of shooting, we have developed 120-300mm F2.8 lenses and released them into the market. It is not simple to decide on a composition with a 300mm lens. Especially for sports and theatrical shows, shooting positions are almost always fixed and changing lenses could lead to missed photographs. By adding a zoom function with the large aperture 300mm F2.8 lens, it no longer requires other interchangeable lenses and rotation of the zoom ring will offer excellent framing. In other words, when conditions are difficult, this high-performance lens gives you more scope to express yourself in the shots you take.
Corresponding AF Mounts: SIGMA, Nikon (D), Canon
Accessories: Lens case, lens hood (LH1220-01),
shoulder strap and tripod socket (TS-51) supplied.
SIGMA 120-300mm F2.8 Lens MTF Chart
* Nikon mounts do not have an aperture ring. Some functions may not work depending on the camera model.
* This lens cannot be used with film SLR cameras with the exception of the Nikon F6 and Canon EOS-1v.
* The Appearance and specifications are subject to change without notice.
By admin, on January 7th, 2013
Sigma today announces new SIGMA 17-70mm F2.8-4 DC MACRO OS HSM / DC MACRO HSM, the lens features Optical Image stabilization, 22cm close focusing distance, size 30% more compact by volume than previous lenses of its type, also features Aspherical, FLD, SLD lens elements and Sigma’s Super Multi-Layer Coating reduces flare and ghosting.
MTF Chart of Sigma 17-70mm F2.8-4 Lens
Continue reading Sigma announces 17-70mm F2.8-4 Lens
By admin, on July 11th, 2012
Sigma 180mm F2.8 EX DG OS HSM APO MACRO Lens Price and Availability Details
According to digicam.info (japanese website) the Sigma 180mm F2.8 MACRO lens will become available for Canon Mount from July 27, 2012 with a price tag of approx 15 – 160,000 yen / approx $1900 in U.S.
The lens features 1:1 reproduction with F2.8 aperture and optical IS, closest focusing distance of 47cm (18.5 inches) , the lens also have ‘FLD’ fluorite-like glass elements, internal focus design and ring-type HSM focus motor allow full-time manual focus override.
src – digicam.info (japanese website)
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