Bought the Fujifilm RR-100 remote release for the Fujifilm X100 camera and it works. I used to have the Fujifilm RR-90 remote release for the Fujifilm X-T1 and sold both. Whether there is a difference between the Fujifilm RR-90 and RR-100 remote releases I can't answer: Gruss Willi

Thank you for your enquiry. Unfortunately, I am not familiar with it. I have the X-H1 with RR100 and am very satisfied. Good click, dieter

Dear Joerg, unfortunately I can't tell you. I have the X-T4. I am sorry. Kind regards, Thomas