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Lens review

Canon EF 300 mm f/4L IS USM

13 November 2009
Szymon Starczewski

5. Chromatic aberration

Chromatic aberration won’t disturb us while working with the tested lens. Its level, measured during our test, was within the range from 0.03% to a bit over 0.05% - it means a negligible result.

Canon EF 300 mm f/4L IS USM - Chromatic aberration

The situation changes after connecting to a converter. The aberration immediately reaches the medium level and, on stopping down, gets near high.

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Canon EF 300 mm f/4L IS USM - Chromatic aberration