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?
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, Ve...
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...
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.
Excerpt: You know all is well with the world when you can again buy the traditional ‘fast fifty’ although Sigma’s revival of a classic design is packed with the latest technology.
Summary: Sigma are clearly marketing this optic as a premium alternative to manufacturer's own lenses. In some respects the higher price is justified, but in others it is not.
Pros: Excellent sharpness in the centre at most apertures, Low vignetting, 77mm filter size is the same as most professional level zooms
Cons: Maybe a little softer than I'd hoped at f/1.4, Heavier than any other 50mm f1.4 lens, Bigger than any other 50mm f/1.4 lens