ayex AX-1 wireless remote shutter release, compatible with Fujifilm e.g. X100F X-T20 X-T2 X-E2 X-M1 X-A3 X-A10 GFX 50S X-Pro2 with many functions e.g. series triggering and Bulb: Amazon.de: Electronics & Photo
Fuji AX Fujica Old X Lens To Fujifilm X-Pro1 FX X-E2 E1 E10 A1 A2 T1 M1 Adapter | eBay