Problems with Canon EF 50mm f/1.4 USM at TestFreaks.com

PC Magazine

11 March 2013

Conclusion: The 50mm f/1.4 USM isn't Canon's top-of-the-line 50mm lens, but it is a solid performer.
Pros: Sharp. Internal focus motor. Fast aperture. Affordably priced.
Cons: No vibration reduction. Lens hood not included.
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itreviews.com

7 March 2013

Conclusion: The 50mm f/1.4 USM isn't Canon's top-of-the-line 50mm lens, but it is a solid performer.
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DP Review

10 December 2009

Conclusion: The Canon EF 50mm F1.4 USM may be based upon a 37-year old optical design, but its performance in our studio tests clearly shows that it's not giving up yet.
Pros: Excellent image quality when stopped down, Essentially no lateral chromatic aberration, Fast and accurate autofocus with full-time manual override
Cons: Distinctly soft and 'dreamy' at wider apertures (F1.4-F1.8), Bokeh chromatic aberration, most visible at wide apertures, Vignetting at wide apertures on full frame (es...
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PhotoReview

27 September 2012

Summary: Although not pin-sharp at its widest apertures, Canon’s EF 50mm f/1.4 USM remains a competent performer and its image quality between f/4 and f/8is excellent.
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ePHOTOzine

14 October 2010

Excerpt: Gary Wolstenholme takes a look at Canon's mid-range 'nifty-fifty'. Standard lenses such as this are popular due to their lightweight and bright maximum aperture.
Pros: Decent resolution across the frame when stopped down., Good resistance to flare., Low vignetting at maximum aperture.
Cons: Barrel distortion may be noticeable in critical applications, Quality towards the edges doesn't really excite until stopped down to f/4
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photozone.de

20 July 2007

Conclusion: The EF 50mm f/1.4 USM showed an almost flawless performance during the lab- and field-tests both in terms of optical and mechanical quality.
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Canon EF 50mm f/1.4 USM