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Keyword: 18-35mm
04.01.2015

Sigma SuperFan Winner’s Circle

jul_winners_circle

We are choosing a Sigma SuperFan winner every month from April to December. You could be the next! Enter for […]

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02.02.2015

Why Circular Polarizers Still Matter

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Why circular polarizers still matter: A high quality circular polarizer is still one of the most important accessories for any photographer’s bag. And the new Sigma Weather-resistant Circular Polarizers offer incredible performance, weather-tough design, and a fantastically upgraded case with grip arcs that keep the filters from rattling around in the bag.

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01.05.2015

Around the World with Sigma Lenses

© Eduardo Angel

One Photographer’s Experience Using Sigma Lenses in Istanbul, Brussels, and Paris, Part I By Eduardo Angel I have recently returned […]

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01.05.2015

Choices, Decisions, and Results: Sigma Lenses for Video

Image © Eduardo Angel.

One Photographer’s Experience Using Sigma Lenses for video in Istanbul, Brussels, and Paris by Eduardo Angel.

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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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