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Tag: Optical Stabilizer
10.31.2014

Sigma 150-600mm F5-6.3 | Sports: Hands-On

The Sigma 150-600mm F5-6.3 DG OS HSM | Sports has been generating a ton of buzz since its announcement at photokina in September 2014. This Sports update of the 150-500mm supertelephoto zoom lens is one of two 150-600mm zoom lenses announced at the show, along with the 150-600mm DG OS HSM | Contemporary.

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10.31.2014

Sigma 18-300mm F3.5-6.3 | Contemporary: Hands-On

The Sigma 18-300mm F3.5-6.3 DC OS HSM Macro | Contemporary is the newest all-in-one camera lens in the Sigma lineup, and offers a high 16.6x zoom ratio, 1:3 macro magnification, Optical Stabilizer, in a lens that covers wide angle to supertelephoto in a single, lightweight lens.

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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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