The fujinon xf90mmf2 r lm wr is a fast aperture prime lens with a focal length equivalent to 137mm and a maximum aperture of f20 that delivers ultra sharp images with rich bokeh even at the maximum aperture setting the optical construction of 11 elements in 8 groups including three ed glass elements minimises vignetting and creates beautiful bokeh thanks to the rounded diaphragm which makes it perfect for portraiture as well as other applications ultra sharp images even at the maximum a