The black 8 x 32 Waterproof Roof Prism Monocular from Opticron is a compact, fully multi-coated monocular with a nitrogen gas filled waterproof construction and thick rubber covering with finger grooves for one-handed operation in even the harshest of conditions. The 8 x 32 model features a long eye relief eyepiece of 16 mm, delivering the full field of view even with eyeglasses. It is fitted with a 4-stage twist-type assembly to allow a more precise set-up.