04 Aug Fujinon XF 100-400mm f/4.5-5.6 R LM OIS WR Review | Andrew Alexander

Announced in January 2016 and released a few months later, the Fujinon XF 100-400mm ƒ/4.5-5.6 is an image stabilized telephoto zoom lens designed for Fuji’s X-series of camera. Weighing in at a touch over three pounds, it’s the heaviest lens Fuji’s produced for the svelte X-series. With the APS-C sensor employed by the X-series, the lens produces an effective field of view of 150-600mm, making it an ideal wildlife lens. The lens uses a variable aperture, in that as you increase the focal length, the maximum aperture size decreases, however the minimum remains the same. The following table reflects the change in maximum aperture with focal length…..