Sigma has announced the new DP1s, an improved version of the DP1 digital camera. The DP1s still features the 14 megapixel Foveon X3 direct image sensor. New updates include the QS (Quick Set) function to the digital zoom button, found on the DP2 and SD14, that allows for faster and more convenient operation and improved performance when shooting backlit subjects. Read the rest of this entry »

Sigma announced the new 70-300mm f/4-5.6 DG OS telephoto zoom lens. It features Sigma’s Optical Stabilizer function which allows for shutter speeds approximately 4 stops slower than would otherwise be possible, SLD glass element for correction of all types of aberrations, and Super Multi-Layer Coating to reduce flare and ghosting. The lens has a minimum focusing distance of 150cm (59.1″) throughout the entire zoom range and a maximum magnification ratio of 1:3.9. The Sigma 70-300mm f/4-5.6 DG OS zoom lens is ideal for many types of photography such as sport, nature, and close-up photography. Read the rest of this entry »

 
The Sigma 30mm f/1.4 was the first lens designed to give crop-sensor digital SLR users the look and performance of a classic 50mm lens. The 30mm focal length is effectively converted to approximately 50mm (depending on the camera) on an APS-C sensor DSLR (Nikon D60 or D90; Canon XSi/450D, T1i/500D, EOS 50D, etc.). The large f/1.4 aperture is great for low-light shooting as well as portraits and other types of photography where a shallow depth-of-field is desirable. We’re featuring bhobg’s Sigma 30mm f/1.4 review because the lens deserves more attention and this review covers the benefits of the lens well.

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Featured Review: Sigma 30mm f/1.4 EX DC HSM Prime Lens

by bhobg (Intermediate)

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The Sigma zoom lens reviews are some of the most viewed user reviews on PhotographyREVIEW.com. I chose to feature this Sigma 24-70mm f/2.8 EX Aspherical DG DF zoom lens review because of its detail and because of the photographer’s obvious experience. Reviews by community members are the foundation of PhotographyREVIEW.com. Share your experience with other photographers by writing reviews for your cameras and other photo gear. You don’t have to be an expert - everyone’s opinion counts.

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Featured Review: Sigma 24-70mm f/2.8 EX Aspherical DG DF Zoom Lens

by Finelight Studio (Professional)

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Sigma Corporation has made available at their US website an online repair order form and payment information. A revamped Service page at the site, Sigma Online Mall Service Page, has tabs for both United States Customers and those Outside of the United States.  Online tracking is now available via a customer generated form.

Contact information is available for Authorized Sigma Service Centers. Sigma acknowledges that they expedite customers repair work by sometimes forwarding work to these vendors and tells customers to be prepared to have direct communication with them.

A step-by-step procedure is posted to aid customers seeking repair/warranty service for Sigma products and third party products by Sigma for Canon, Nikon, Sony/Minolta, Pentax and of course the 4/3rds lenses for Olympus and Panasonic.

Sigma Service Information

Related links:

Sigma Corporation of America Home Page

Authorized Sigma repair centers

Criscam.com Chandler, AZ contact - email: sigma@criscam.com

Camera Repair Japan Duluth, GA contact - email: crjco@aol.com

Sigma announced the 18-50mm F2.8-4.5 DC OS HSM lens, which is an upgrade to its predecessor. This lens is dedicated to digital SLR cameras with APS-C size image sensors offering a large aperture and Sigma’s Optical Stabilization.

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Sigma announced the new super-wide angle lens, the Sigma 10-20mm f/3.5 EX DC HSM. It has a wide angle view from 102.4 degrees and a maximum aperture of F3.5.

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Sigma announced the new compact high-performance telephoto zoom lens, the Sigma 50-200mm f/4-5.6 DC OS HSM.

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Sigma Corporation announces a new superzoom lens

January 15, 2009 The Optically Stabilized (OS) lens sports a 13.8 times zoom ratio. Sigma’s new lens features a wide focal length range from 18mm to 250mm at F3.5-6.3 with a minimum aperture of F22. Equipped with a HSM (Hyper-Sonic Motor), a minimum focusing distance of less than a foot and a half at all focal lengths, and included petal type hood this is potentially an all around performer for the photographer with a wide range of needs who does not want to be changing their lens frequently.
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Featured Review:
Sigma 100-300mm f/4.0 EX IF HSM APO Zoom Lens

by NorCalAl (Intermediate)

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Sigma Corporation announced today that they are acquiring Foveon, developer of the X3 sensor. Foveon developed and manufacturs the unique 3-layer X3 sensor used in the Sigma SD14 digital SLR and DP1 compact digital camera.
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“TRUE II” new image processing engine in the SD15 DSLR

Sigma announced its latest addition to the digital SLR camera SD series, the 14-megapixel Sigma SD15.

The SD15 incorporates the “TRUE II” new image processing engine which delivers superior image quality as well as improved processing speed, operation and performance. This provides high resolution power and reproduces high definition images that are rich in gradation and three-dimensional detail. Read the rest of this entry »