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Lens review

2012-11-20
 

Olympus M.Zuiko Digital 17 mm f/1.8

5. Chromatic and spherical aberration


Chromatic aberration

The longitudinal chromatic aberration is corrected well – off focus images near the maximum relative aperture are just slightly coloured and that effect shouldn’t be bothersome in real life photos.

Olympus M.Zuiko Digital 17 mm f/1.8 - Chromatic and spherical aberration

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Lateral chromatic aberration might prove to be more troublesome. That aberration seems to be independent of the value of the aperture and its level is situated near 0.12% across the whole aperture range. It is a level we consider medium.

Olympus M.Zuiko Digital 17 mm f/1.8 - Chromatic and spherical aberration

Olympus M.Zuiko Digital 17 mm f/1.8 - Chromatic and spherical aberration


Spherical aberration

Spherical aberration can be described in similar terms as the chromatic aberration. It is not corrected in a perfect way because there are differences between images of a defocused diode we got in front of and behind the focus; still that effect is not high so there are no serious reasons to complain.

Olympus M.Zuiko Digital 17 mm f/1.8 - Chromatic and spherical aberration

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