Fujifilm Fujinon XF 23 mm f/2 R WR
5. Chromatic and spherical aberration
Chromatic aberration
The longitudinal chromatic aberration of the Fujinon 2/23 is practically nonexistent. It makes the lens to stick out in a positive way when compared to its faster brother – that device experienced a lot of problems in this category.
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As the graph below shows clearly, the lateral chromatic aberration isn’t a thing you should worry about either.
The aberration increases a bit over 0.04% by f/2.0 and to 0.07% on more distinct stopping down. These values we consider to be very low or low and they shouldn’t be bothersome in real life photos. What’s interesting, it is a result slightly better than that of the faster 1.4/23 model - its aberration didn’t depend on aperture value and kept a level of 0.07-0.08% all the time.
| Fujifilm X-E1, RAW, f/2.0 | Fujifilm X-E1, RAW, f/11.0 |
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Spherical aberration
It would be difficult to spot any „focus shift” effect in the first photo of this chapter. Additionally the appearance of light circles we got in front of and behind the focus was very much alike – not identical, mind you, so the spherical aberration is not corrected in a perfect way but still it would be difficult to have any serious reservations.
| Fujifilm X-E1, f/2.0, in front of | Fujifilm X-E1, f/2.0, behind |
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