FujiFilm XF56mmF1.2 R APD Manuel D'utilisation page 18

The Aperture Ring
At settings other than A, you can adjust aperture by rotat-
ing the lens aperture ring (exposure modes A and M).
The built-in apodization fi lter reduces the amount of light
passing through the lens; the eff ective aperture (f-number)
is shown by the red numbers on the aperture ring.
EN-8 ENGLISH
A 16 11 8 5.6 4 2.8
5.6 4.2 3.0 2.3 1.8 1.7
Aperture ring
2 1.4 1.2