This particular lens has a maximum focal length of 50 mm and a minimum focusing distance of 0.45 m. For those who like to use a filter, this lens has a filter diameter of 77 mm.
From WEX Photo Video
Samyang VDSLR 50mm T1.5 MK2 Lens for Fujifilm X
Camera Centre
Samyang 50mm T1.5 VDSLR MK2 Lens - Fujifilm X Mount