Fujifilm has filled the gap between its 200mm f/2 and 500mm f/5.6 X-mount primes. The new FUJINON XF400mmF4.5 R LM OIS WR is a 400mm super-telephoto (609mm equivalent on APS-C) aimed at birds, motorsports, and aircraft — the same sports-and-wildlife brief DPReview and B&H Explora use for the launch. Fujifilm says the 200 / 400 / 500mm set now covers about 305mm to 762mm in full-frame terms.
U.S. list price is $3,199.95 ($3,899.99 in Canada). Fujifilm says the lens will be available mid-September 2026. You can pre-order now at B&H Photo Video.
