Fujifilm Fujinon XF 56 mm f/1.2 R WR review - Coma, astigmatism and bokeh

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Fujifilm Fujinon XF 56 mm f/1.2 R WR

27 March 2023

Maciej Latałło

7. Coma, astigmatism and bokeh

Many fast telephoto lenses have experienced distinct problems with coma and you don't have to look for them very far. Even the predecessor of the tested lens didn't perform here well, having coma on a medium level. The new model, though, fares much better - the deformations of point-like images of a diode are very slight even at the maximum relative aperture and shouldn't worry you at all.

X-T2, f/1.2, center	X-T2, f/1.2, Corner

X-T2, f/1.8, center	X-T2, f/1.8, Corner

Astigmatism, understood as an average difference between horizontal and vertical MTF50 function values, amounted in this case to 4.6%, being on the borderline between very low and low level. It is also a value slightly lower than that of its predecessor.

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Defocused circles of light look really nice. You should remember that the lens features two aspherical elements and yet it managed to avoid any distinct onion-ring bokeh. What's more, it doesn't have any problems with a brighter rim. Mechanical vignetting is visible at the maximum relative aperture for a change and also on stopping down by 1 EV. Still, more significant stopping down is able to reduce this aberration to almost zero.