Fujinon XF 90mm f/2 R LM WR ( Fujifilm ) | PhotoZone
The Fujinon XF 90mm f/2 R LM WR is the best Fujifilm lens that we have tested so far. It is exceedingly sharp straight from f/2 and the low amount of lateral chromatic aberrations provides an extra kick here. Distortions are basically absent and vignetting isn’t an issue under in most situations as well. Unlike most mirrorless lenses, it is fully corrected and doesn’t really rely on any digital image auto-correction. The quality of a the bokeh is also very good although it stays a tad short of greatness. The amount of bokeh fringing is low for a lens in this aperture class. The goodness continues in terms of build quality. It’s a weather-sealed, all-metal construction with tight build tolerances. That being said we don’t really like the loose AF group which rattles when „shaking“ the lens (although … who does that really …). Fujifilm mentions that its linear quad AF motor uses 4 magnets to drive the AF group. The high AF speed may require such a -say- relaxed implementation. Once the camera is switched on the magnets seem to pick up the focus group keeping it sturdy in place (that’s our theory anyway). Some may not like the comparatively big dimensions and weight of the lens but then it’s not really a brick yet……
Source: www.photozone.de