Reviews and Problems with Sigma 50mm F1.4 EX DG HSM
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Sigma 50mm f/1.4 EX DG HSM Review
26 September 2015
Summary: While being the largest, heaviest and the priciest of the 50mm lenses I have tested so far, The Sigma f/1.4 EX DG HSM simply fails to deliver. Its high levels of purple fringing and relatively low sharpness in the center frame are disappointing, while the corners are clearly the worst in the group.
Excerpt: Similar in size, features, and price (though not format) to Sigma's 30mm f/1.4 high-speed "normal" prime for DSLRs with APS-C sensors, this 50mm full-framer ($500, street) also belongs to Sigma's EX family of pro-quality glass.
Excerpt: It is hard not to be drawn to a fast prime - the short, fat, solid-feeling lens with very low-light capability is very attractive. So, I don't find it surprising that the Sigma 50mm f/1.4 EX DG HSM Lens has received a lot of attention in the early days of its availability.
Conclusion: When Sigma first announced the 50mm F1.4 EX DG HSM in March, our story headline (courtesy of our news editor and punmeister-in-chief) was 'A new standard?', and this has turned out to be remarkably prescient.
Pros: Class-leading image quality, Relatively low vignetting even at wide apertures on full frame, Reasonably fast and positive autofocus, with full-time manual override, Very good build quality
Sigma AF 50mm f/1.4 EX DG HSM (FX) - Review / Test Report
8 August 2010
Conclusion: The Sigma AF 50mm f/1.4 EX DG HSM struggles to deliver convincing performance on full format cameras. The center quality of the lens is certainly fine and even great from f/2 onwards. Unfortunately the border & corner performance is rather disappointing.
Sigma AF 50mm f/1.4 EX DG HSM (Canon) - Full Format Review / Test Report
14 July 2010
Conclusion: The new Sigma AF 50mm f/1.4 EX DG HSM showed pretty impressive results in our APS-C review. However, it's not quite as convincing on full format cameras. The center quality of the lens is certainly fine and even great from f/2 onwards.
Sigma AF 50mm f/1.4 EX DG HSM (Canon) - APS-C Review / Test Report
25 May 2010
Conclusion: The new Sigma AF 50mm f/1.4 EX DG HSM is a refreshing alternative in the long-ignored standard AF lens market. The lens is fairly big and heavy due to unusually big glass elements but thanks to the design efforts it is already capable of delivering sharp images straight from f/1.4 and the resolution...
Excerpt: Appropriately, the 50mm f1.4 is an ‘EX’ lens – signified by a thin gold band around the barrel – which is Sigma’s high performance standard in terms of both the mechanical and optical constructions.