Sigma 28 70mm Ex Dg Views
The Sigma 28-70mm f/2.8 EX DG lens is a compact and lightweight constant f/2.8 aperture zoom lens and is optmized for digital SLR cameras, but can also be used with film SLR cameras. The 28-70mm zoom range makes this lens the ideal choice as a standard zoom lens for photojournalism or general photography. The lens is specially optimized for digital SLR cameras, and Super Multi Coating gives superb color performance whilst cutting down flare and ghost. Two SLD elements and four aspherical lenses provide the ultimate correction against distortion as well as all types of aberration, especially spherical aberration. Its advanced optical design ensures high performance throughout the entire zoom range.
The Sigma 28-70mm f/2.8 EX DG IF Aspherical features 28-70mm at focal length with maximum aperture of f/2.8. The lens construction has 14 elements in 12 groups and has diagonal angle of view at 75.4 degrees. Closest focusing distance at 0.33m and has a filter size of 67mm. The Sigma 28-70mm f/2.8 EX DG IF Aspherical lens weighs 18 Ounces and it measures 2.9 inches in diameter and 3 inches long.
Photodo reviews the Sigma 28-70mm f/2.8 EX DG IF Aspherical and writes; 2“As a fast and relatively lightweight lens for standard to short telephoto work, this lens has a lot going for it. Although small and light for it’s genre, it is well built, nicely torqued and felt right in use. The picture quality was good throughout and excellent when stopped down. The filter size is not so big that a mortgage is needed for filters and the supplied hood works well.t” rating: N/A
The-digital-picture reviews the Sigma 28-70mm f/2.8 EX DG IF Aspherical and writes; 2“Vignetting results are normal for lenses with specs similar to the 28-70 with full frame users noticing some corner darkening when shooting wide open. Like the Sigma 24-70, I find the Sigma 28-70 to overexpose by about .2 f-stops on average.p” rating: N/A
Sigma 28 70mm Ex Dg Images
