Sigma 35mm f/1.4 DG HSM Lens Review at SLR Gear: There's a lot to like here: great results for sharpness, low chromatic aberration, and low distortion.

"Sigma's produced an excellent lens in the 35mm ƒ/1.4 DG HSM, with comparatively great performance at the ƒ/1.4 aperture setting, where the lens will no doubt be used for the majority of the time. There's a lot to like here: great results for sharpness, low chromatic aberration, and low distortion. There is some significant corner shading when used wide open, but coupled with the corner softness at the same aperture settings this contributes to an interesting look and subject isolation. If you're looking for corner-to-corner image sharpness you'll need to stop down. The Sigma 35mm ƒ/1.4 is definitely priced to compete, and designed to perform.

Sigma has moved in a new direction with its lens design. It has designed three categories within its new "Global Vision" of lenses - Sports, Art and Contemporary, and a new look is part of the package. The 35mm features a new finishing texture, doing away with the rubberized finish that had a tendency to break down over time and use. Instead the lens features a shiny black section of finishing near the lens mount, then a dull matte finish on the lens midsection. Half of this matte finished area is ridged, presumably for better handling. A shiny "A" is emblazoned on the side of the lens. There are 13 elements in 11 groups in the lens, including SLD and FLD elements. The focus is an internal floating focus mechanism designed to give better optical performance at close distances. The aperture is composed of a 9-blade diaphragm and interestingly, these blades are not rounded. The lens was built in Japan.

The build quality of the lens is good, and it has a very sturdy feel to it. The lens features a focusing ring and a switch to enable or disable autofocus, as well as a distance scale marked in feet and metres, protected under a plastic window. This distance scale features a single depth-of-field marker for the ƒ/16 aperture setting; there is no infrared index."

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