Nikon ProStaff 5 10x42 -

Optical Performance

Powerful 10x magnification allows for detailed observations of distant subjects
42mm objective lenses improve light-gathering ability without adding excessive bulk or weight
Roof prism light path ensures optical tubes remain thin for a compact form factor
Anti-reflection multi-coated optics maximize light transmission across the entire visible spectrum for accurate color rendition and improved contrast and clarity
294′ field of view at 1000 yards

	PROSTAFF 5 8×42	PROSTAFF 5 10×42	PROSTAFF 5 10×50	PROSTAFF 5 12×50
Magnification (x)	8	10	10	12
Objective diameter (mm)	42	42	50	50
Angular field of view (Real/degree)	6.3	5.6	5.6	4.7
Angular field of view (Apparent/degree)	47.5	52.1	52.1	52.4
Field of view at 1,000m (m)	110	98	98	82
Exit pupil (mm)	5.3	4.2	5.0	4.2
Relative brightness	28.1	17.6	25.0	17.6
Eye relief (mm)	17.5	15.2	19.6	15.5
Close focusing distance (m)	5.0	5.0	5.0	5.0
Length (mm)	165	163	187	183
Width (mm)	130	130	140	140
Depth (mm)	54	54	65	65
Weight (g)	630	630	815	790
Interpupillary distance adjustment (mm)	56-72	56-72	56-72	56-72
Type	Roof	Roof	Roof	Roof