Celestron Metal Nature DX 10x32ED waterproof monocular bak-4
Objective lens aperture: 32mm
Objective lens material: including ED glass
Magnification: 10x
Field of view angle: 6.2 degrees
Linear field of view: 109 meters @ 1000 meters
Exit pupil diameter: 3.2 millimeters
Pupil exit distance: 14.4 mm
Nearest focusing distance: 2 meters
Optical coating: FMC full surface multi-layer coating
Prism material: BaK4
Prism coating: phase film
Mirror body: all metal