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1102 lenses 428 MTF tests 74 in-depth photodo reviews 100+ users join each day Help the lens community by reviewing or rating a lens today via our lens search | Sigma 18-50mm F2.8 EX DC MacroPage 1 of 1: 1 EX series large aperture zoom lens with a minimum focusing distance of 20cm designed specifically for use with digital SLR cameras.  This lens has a large aperture of F2.8 throughout the entire zoom range. A minimum focusing distance of 20cm (7.9”) and a maximum magnification of 1:3, makes it ideal for close-up photography. Specially designed to suit the characteristics of digital SLR cameras, this lens provides a high level of optical performance. Its design incorporates both glass-mold and hybrid aspherical lens technology which offers extremely high image quality as well as a compact and lightweight construction. Minimal vignetting and superior peripheral brightness is ensured. Special Low Dispersion (SLD) and Extraordinary Low Dispersion (ELD) glass elements provide excellent correction of colour aberrations. The super multi-layer lens coating reduces flare and ghosting, a common problem with digital cameras. High image quality is assured throughout the entire zoom range. An inner focusing system eliminates front lens rotation, making the lens particularly suitable for using the petal-type lens hood (supplied) plus circular polarising filters. Specifications
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Any rating ? Compare with Tamron A16, any comment ? I have only compared this with my Carl Zeiss 50mm f1.4 Planar, which is the Sharpest lens ever made according to many, and my Zeiss Flektagon 35mm f2.4- a good one - these vary. These are the best you will get, I have tried lots, beleive me. This Sigma lens is as good at f5.6, but it falls away a bit when opened, so at f4 it is similar to the Zeiss's at f2.8. At f2.8 is is notably softer, but I am talking big magnifications here, almost down to seeing the pixels. It is a very good lens for a zoom to be so close to these Zeiss's. I had a Zeiss Distagon 35mm - not impressed and also a Distagon 28mm also not impressed - sold them both, (along with another Flektagon which failed to impress). These two Distagons are raved over. The Sigma, allthough I can no longer compare directly, I would say was better than these two. I have not tested the Sigma at wider angles, but from mid to long I am very pleased. It handles nicley as well, looks good, nice petal hood for the street cred, so I will give it 5 stars. BUY ONE Page 1 of 1: 1 Add your messageLogin required
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