Fujifilm GF 100-200mm F5.6 R LM OIS WR is an Auto Focus (AF) Telephoto Zoom lens with Medium Forma max sensor coverage. When mounted on a Medium Forma sensor camera, it will give you an FF equivalent focal range of 0 - 0mm. With the max apertures of only f5.6 at 100mm, and f5.6 at 200mm, the lens is quite slow at both ends.
Fujifilm GF 100-200mm F5.6 R LM OIS WR is weather sealed which makes it an ideal lens for outdoor use, especially when coupled with a weather sealed camera body.