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Category: Photoworld
04.01.2014

Win Sigma Lenses, Black Magic Camera, and more!

Sigma Corporation of America, Kupo Grip and The Phoblographer are sponsors of this great giveaway!

Sigma Corporation of America has teamed up with Kupo Grip and The Phoblographer as sponsors of a giveaway that will be sure to make the winning videographer beam with joy.

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03.28.2014

The Sigma 180mm F2.8 EX DG OS HSM Macro Lens for Close-up Work

The Sigma 180mm F2.8 EX DG OS HSM Macro lens.

The Sigma 180mm F2.8 EX DG OS HSM Macro lens is the biggest, longest macro lens in the Sigma lens catalog. This telephoto lens offers true life-sized reproduction with a 1:1 maximum magnification ratio. Incredible sharpness—thanks to its state of the art optical design—Optical Stabilizer, and a three-zone focus limiter make this a serious lens for advanced macro photographers.

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03.03.2014

What is a Zoom Lens? And why and when to choose a Zoom Lens?

Sigma offers a great variety of zoom lenses. (Lenses are not shown to scale in this display.)

A zoom lens is a type of camera lens that is offers the photographer a useful range of different focal lengths in a single lens. This is in comparison to a prime lens, which only offers a single focal length. A zoom lens allows for quick and easy re-framing of a scene while staying in the same physical position. Sigma offers a line of over 20 zoom lenses for DSLR photographers, ranging from wide angle zoom lenses, supertelephoto zoom lenses, and high-zoom ratio all-in-one lenses for both full-frame (DG) and APS-C (DC) digital cameras.

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02.03.2014

Geometric and Diffraction MTF Charts: A Clearer Picture for Photographers

Our technical product information has been expanded to now include both Geometric and Diffraction MTF charts for new Sigma lenses. You can take a look at the technical information about the new Sigma 18-200mm F3.5-6.3 DC OS HSM | Contemporary lens on the Sigma Global Vision website to see these graphs plotted as part of the total package of information we share to help photographers understand the performance of our lenses.

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01.07.2014

The Holiday 2013 Sigma Lens Size Comparison Graphic

Click the photo to view it full-screen. And Let us know which of these lenses are on your #SigmaWishlist on our social channels for a chance to win a cool swagbag between now and Dec 26th! We'll be giving away 10 across all social channels that use the hashtag #SigmaWishlist. (US Only.)

In case you were ever wondering how many of our smallest lens equal one of our biggest lenses, and how our lenses size up to a cardinal or a 16 oz cup of coffee, we present the Holiday Season 2013 Sigma Lens Comparison Chart! Here’s our entire lens lineup, to scale.

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