Fujifilm Fujinon XF 56 mm f/1.2 R
5. Chromatic and spherical aberration
Taking into account the price of the tested lens its longitudinal chromatic aberration correction disappoints us a bit. The fact that it is still visible at the maximum relative aperture would be understandable but it is surprising that its level doesn’t decrease when you stop the lens down by 1 EV. On the other hand, compared to the performance of the Nikkors of the 85 mm class, the results of the Fujinon still look good…
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The lateral chromatic aberration should be described in a completely different tone because it is corrected in a splendid way. Its level is very low already near the maximum relative aperture and it becomes practically zero after stopping down the aperture by about 2-3 EV.
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Spherical aberration
The lens didn’t have any „focus shift” effect so the spherical aberration level can’t be very high. The defocused light circles you get in front of and behind the focus are also acceptable. Although you can notice a difference in size and intensity of the ring visible on the very rim of each circle, the rest features a very nice and even light spread.
