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Category: Photoworld
07.01.2014

Sigma dp2 Quattro: First Look

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I’ve spent the weekend with the dp2 Quattro, and I can tell you straight-out that this is far and away the best dp camera I’ve had my hands on. Here’s our first look at the Sigma dp2 Quattro.

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05.30.2014

Great Camera Gear Ideas for the Summer Season from Sigma!

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Great gear ideas for the summer, from the team at Sigma. Ideas for cameras and lenses for wherever you’re heading this sunny season!

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05.28.2014

First Look: Sigma 50mm F1.4 DG HSM | A

Daffodils, captured wide open at F1.4 with the new Sigma 50mm F1.4 DG HSM | A lens on a classic 5D. 1/5000 F1.4 ISO 100.

The Sigma 50mm F1.4 DG HSM | A lens is simply amazing. This standard field of view, fast-aperture, full-frame, prime lens combines outstanding sharpness, fast autofocus, in a lens that is built with a singular vision on performance.

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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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01.03.2014

Prime Time: Focus on Fixed Focal Length Lenses

A ring of beach rocks seen through the Sigma 15mm EX DG HSM Diagonal Fisheye with the horizon line near the center of the frame.

Prime lenses are designed for exceptional imaging at a single focal length. Unlike zoom lenses that easily span a given focal range and variable field of view with a twist of the zoom ring, the field of view and focal length remains constant. If you want to take in less of the surroundings with a given prime lens, you’ve got to physically move closer, and to take in more of the scene, you’ve got to back up. But of course, as you move, the angle of view remains the same all the while.

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12.05.2013

Sigma 24-105mm F4 DG OS HSM | Art: Photo Samples

Nine rounded aperture blades, Optical Stabilizer, 4x constant-aperture zoom for creativity and quick one-lens recompositing all add up to a rock-solid new member of the Sigma Art line of lenses. For photographers looking for a constant-aperture one-lens solution from wide to short tele, the new 24-105mm F4 DG OS HSM | A, there’s a whole lot to love.

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