With a zoom range of 24-200mm and a maximum guide number of 60 at 200mm, the EF-60 Shoe Mount Flash from FUJIFILM is suitable for either TTL or manual applications and can be used on or off camera, when combined with the optional EF-W1 Wireless Commander, which uses radio-controlled 2.4 GHz wireless communications to remotely trigger the EF-60. The EF-60 is for X-Series and GFX System users with impressively powerful output and professional features in a compact and portable design. It is also compatible with the Nissin Air10s Remote, which allows for integration with other Nissin Air System (NAS)* compatible flashes (i60A, Di700A, MG Series).