The Fujinon XF 16mm f/2.8 R WR is hailed to be one of the sharpest Fuji lenses for its size and very reasonable price, so how does it fair on the Fuji X-T5 with its 40mp sensor? It's one on a list of lenses that Fujifilm recommends you use to get the best out of the sensor, and if that in fact is the case it certainly does it well.