la lentille de Fresnel est connue pour donner des flares pas terribles. Et il semble que cela se confirme NX-D va inclure un outil de correction pour les flares du 300m F4....
"Due to the characteristics of a PF (Phase Fresnel) lens that utilizes the photo diffraction phenomenon, when there is a strong light source within the frame or when light enters the lens from outside of the frame, ring-shaped colored flare may occur according to shooting conditions. This phenomenon can be minimized with “PF Flare Control” included in Capture NX-D (see the comparison images below). Refer to the software manual for more information. Capture NX-D is available from our website. Please download and use the latest version."