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Keyword: 18-35mm
12.01.2014

Sigma Product Awards and Accolades: 2014 Wrap-Up!

2014 was a very busy year for Sigma. We announced a host of new lenses and cameras, offered the Sigma dp2 Quattro Test Shoot, and participated in trade shows, and dealer events across the country. Photographers all around the world have been talking about our new lenses in the Art, Sports, and Contemporary lines, as well as the completely redesigned dp series cameras.

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10.06.2014

Taking Creative Control: Understanding Aperture and F/Stops

These two apples were photographed with the Sigma 18-35mm F1.8 DC HSM | A lens zoomed to 35mm with an F2.8 aperture for shallow depth of field. Notice how just a sliver of the leaf and near apple is on the focal plane. The front apple is about a foot from the lens, with the farther apple nine inches behind. The back wall with the very soft shadow is ten feet from the camera.  1/40 F2.8 ISO 400, continuous lighting.

Of the three main variables relating to creative and artistic control on DSLR and compact interchangeable cameras–aperture, shutter speed and ISO– aperture control, is for many beginners, the most difficult to grasp. Have no fear, we’re here to help. Learning how and when to select a wide or narrow aperture unleashes the creative and expressive potential of your camera’s lenses.

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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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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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11.28.2013

Sigma Safari Photo Shoot: Promo Images

© 2013 Lindsay Adler | Camera: Sigma SD1 | Lens: 18-35mm F1.8 | Focal length: 26mm | Shutter speed: 1/125sec | ISO 100 | Aperture: f/11

The PhotoPlus Expo, held annually at the Jacob Javits Center in New York City, is one of the biggest photo […]

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10.31.2013

Sigma 24-105mm F4 DG OS HSM | A: First Impressions

This full-frame wide-to-tele constant aperture zoom has an $899 street price.

First look at the new Sigam 24-105mm F4 DG OS HSM | Art lens. The newest lens in Sigma’s lineup is a full-frame constant-aperture wide-to-tele zoom with OS.

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10.22.2013

“Go Wide”- Utilizing Extreme Wide Angle Lenses for Impact

© 2013 Lindsay Adler | Lens: Sigma 12-24mm| Camera: Canon 5D Mark II | Focal Length: 21 | Shutter speed: 1/100 sec | Aperture: f/5.6 | ISO: 400

One way to create eye-catching imagery is to break the rules. When you shatter these rules, you stop people in their tracks! One of the first rules of portrait and fashion photography I learned was to NOT use a wide angle lens when photographing people. I was told this would distort their features and be unflattering to the model. But what if you use the wide angle on purpose to distort and exaggerate a scene? Then it creates visual interest and impact. Now your images stand out and become memorable.

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09.09.2013

Recent Reviews Roundup

Top publication such as Shutterbug, Examiner, PC Magazine, CNET, Popular Photography, Gizmodo and others review Sigma lenses and photography equipment including the Sigma 18-35mm 1.8, the Sigma 35mm 1.4, the Sigma 120-300mm 2.8 and much more.

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08.01.2013

Why the New Lens Mount Conversion Service is Great for Photographers

Many times I’ve been asked on Facebook and elsewhere if it is possible for a photographer to keep their favorite Sigma lens and get a lens mount swap after making the decision to switch from one camera to the next, and now, finally, I can answer them with the answer they (and I) want to hear! As of September 2, 2013, owners of lenses in Sigma’s line of the Sigma Global Vision lenses: Art, Sports, and Contemporary, can now send their lenses in for a mount swap. This is a paid service, and lenses will be shipped to our Aizu, Japan factory for the mount conversion

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