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Lens review

Canon EF 50 mm f/1.2L USM

10 August 2010
Szymon Starczewski

5. Chromatic aberration

For the fans of L series instruments the news are not good when it comes to correcting lateral chromatic aberration. It seems to be independent from the aperture used and similar in cases of APS-C and full frame sensors edges – it always reaches the borderline between medium and high values.

Canon EF 50 mm f/1.2L USM - Chromatic aberration

When it comes to the longitudinal chromatic aberration, like in practically every fast lens, it is not only present but also quite bothersome, especially near the maximum relative aperture. It can be noticed easily in the pictures of the autofocus accuracy testing chart, presented in the chapter 10. Black-and-white edges before the plane of focus are tinted red and those which are positioned after that plane are blue-green.

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Canon EF 50 mm f/1.2L USM - Chromatic aberration