Thanks to Fujifilm Japan for providing an X-T4 engineering sample, we have a chance to test our products working with the new coming X-T4 camera.
They work very well! Compared to X-T3, It also shows some improvements in terms of eye tracking performance and IBIS function (of course, X-T3 don't have that).
X-T4, Fringer EF-FX Pro II and Tamron SP 35/1.4 AF test
1 on 1 comparion of X-T4 and X-T3 working with Fringer EF-FX Pro II and EF50/1.8STM