Photo Concept

By Morris Eiyan:

If you own a Canon or Nikon APS-C format compact DSLR and you’re looking for a reasonably-priced, fast wide-to-short-telephoto lens to go along with your camera, you should take a look at the Sigma 17-50mm/f2.8 EX DC OS HSM zoom lens.

Featuring a fast, f/2.8 maximum aperture throughout its entire zoom range, the Sigma 17-50mm/f2.8 EX DC OS HSM has an equivalent focal length of a 25.5mm to 75mm lens when used on a Nikon compact (APS-C) DSLR and a 27.2mm to 80mm lens when used on a Canon compact (APS-C) DSLR.

The Sigma 17-50mm/f2.8 features up to 4-stops of optical image stabilization (OS) , close-focusing down to 11″ (28cm), a 3.6″ (91.8mm) travel-friendly size, two-touch control, Hyper-Sonic Motors (HSM), and FLD glass with Super Multi-Layer coatings.

Below is an excerpts from an article How to Get the Best Results from Ultra-Wide Lenses:

These days, most kit lenses on consumer DSLRs are wide-angle. 18mm on an APS-C sensor camera (or 27mm in old 35mm speak) is wide enough for most occasions. Ultra-wide angle lenses are those that are shorter than 16mm in focal length. It is here that we’ll strike new creative possibilities and new obstacles. Read more about tha how to get the best results from Ultra-wide Lenses

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