Celestron-ultima Monocular, 10x42 bak-4,Multicoated Portable
Magnification: 10X
* Size: 42 mm
* Coating: Multilayer coating
* Field of view: 5.8 degrees
* Closest focusing distance: 3.5 m
* Exit pupil distance: 13.6 mm
* Exit pupil diameter: 4 mm
* Prism material: BaK4