Lens review

Fujifilm Fujinon XF 10-24 mm f/4R OIS

20 August 2014
Arkadiusz Olech

5. Chromatic and spherical aberration

Chromatic aberration

In the case of the tested Fujinon the longitudinal chromatic aberration is not a big problem – the image in front of the focus has a slightly yellow cast and the one behind the focus is a bit bluish. On stopping down the aperture to f/5.6 that effect decreases but it doesn’t disappear completely.

Fujifilm Fujinon XF 10-24 mm f/4R OIS - Chromatic and spherical aberration

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The lateral chromatic aberration behaves in an interesting way and we present it on a graph below.

Fujifilm Fujinon XF 10-24 mm f/4R OIS - Chromatic and spherical aberration

At the shortest focal length the aberration doesn’t depend on the aperture value, keeping near 0.05% so being low. It is a piece of very good news as it means that at the widest angle of view the chromatic aberration won’t bother us at all.

In the middle of the focal range the aberration increases with the stopping down of the aperture. Near the maximum relative aperture it is small and then it progresses to medium when you stop down the lens. Still there is no need to worry.

At the maximum focal length the aberration won’t be bothersome only by f/4.0 and by f/5.6; then it reaches a high level, exceeding 0.18% by f/16 and f/22. Fortunately, mainly due to resolution limitations connected to diffraction, you hardly ever use such high aperture values on the APS-C sensor.

Fujifilm Fujinon XF 10-24 mm f/4R OIS - Chromatic and spherical aberration

Spherical aberration

The lens didn’t have any ‘focus shift’ effect so we think it corrects the spherical aberration pretty well. Because of its significant depth of field, connected to its parameters, we didn’t manage to obtain circles of light in front of and behind the focal point big enough to test it properly.