I’ve tested most of the high-end Fujifilm cameras for birds in flight, from the original X-T1 to the surprising X-Pro2. The X-T4, released in 2020, is not all that different from its predecessor in terms of its specifications, but it represents the best performance Fujifilm has to offer thanks mostly to an improved AF algorithm.

To find out if the X-T4 is a significant upgrade, I put it through its paces with the subject I love the most: red kites in rural Wales! The feeding station I regularly visit is still closed, so I had to wait for other sites to re-open to finally test the camera.
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https://mirrorlesscomparison.com/stories/fuji-xt4-birds-in-flight-test/