Sigma has announced a fascinating new f/2.8 standard zoom lens as part of its Contemporary lens line, and true to the Contemporary’s core concept, this 28-70mm f/2.8 DG DN Contemporary lens affords that elusive balance of performance and portability. It is currently the smallest and lightest full-frame f/2.8 standard zoom lens on the market and is available for Sony E-mount and Leica L-mount mirrorless cameras.
Based on the optical design of the successful Sigma 24-70mm f/2.8 DG DN Art lens, this 28-70mm lens is decidedly lighter and more compact than its slightly faster stablemate. By still maintaining a common and convenient range of focal lengths, along with the bright f/2.8 constant maximum aperture, this lens should entice many photographers looking for a standard zoom that doesn’t overwhelm their smaller size mirrorless camera body.
The advanced optical design of the new lens includes three aspherical, two FLD, and two SLD elements, and despite using fewer total elements than the 24-70mm f/2.8 Art lens, the design corrects axial chromatic aberration and sagittal coma aberration for sharp images, from the center to the edges of the frame. Along with its anti-ghosting design, the use of a Super Multi-Layer Coating controls flare for high-contrast results.
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