Nikon | Sport Optics | ACULON A211

	ACULON A211 7x35	ACULON A211 8x42	ACULON A211 10x42
Magnification (x)	7	8	10
Objective diameter (mm)	35	42	42
Angular field of view (Real/degree)	9.3	8.0	6.0
Angular field of view (Apparent/degree)	59.3	58.4	55.3
Field of view at 1,000m (m)	163	140	105
Exit pupil (mm)	5.0	5.3	4.2
Relative brightness	25.0	28.1	17.6
Eye relief (mm)	11.8	12.0	11.6
Close focusing distance (m)	5.0	5.0	5.0
Interpupillary distance adjustment (mm)	56-72	56-72	56-72
Weight (g)	685	755	760
Length (mm)	118	145	145
Width (mm)	185	185	185
Type	Porro	Porro	Porro

	ACULON A211 7x50	ACULON A211 10x50	ACULON A211 12x50
Magnification (x)	7	10	12
Objective diameter (mm)	50	50	50
Angular field of view (Real/degree)	6.4	6.5	5.2
Angular field of view (Apparent/degree)	42.7	59.2	57.2
Field of view at 1,000m (m)	112	114	91
Exit pupil (mm)	7.1	5.0	4.2
Relative brightness	50.4	25.0	17.6
Eye relief (mm)	17.6	11.8	11.5
Close focusing distance (m)	8.0	7.0	8.0
Interpupillary distance adjustment (mm)	56-72	56-72	56-72
Weight (g)	905	900	910
Length (mm)	180	179	179
Width (mm)	197	197	197
Type	Porro	Porro	Porro

	ACULON A211 16x50	ACULON A211 8-18x42	ACULON A211 10-22x50
Magnification (x)	16	8-18	10-22
Objective diameter (mm)	50	42	50
Angular field of view (Real/degree)	4.2	4.6*	3.8*
Angular field of view (Apparent/degree)	60.8	35.6*	36.7*
Field of view at 1,000m (m)	73	80*	66*
Exit pupil (mm)	3.1	5.3*	5.0*
Relative brightness	9.6	28.1*	25.0*
Eye relief (mm)	12.6	10.3*	8.6*
Close focusing distance (m)	9.0	13.0	15.0
Interpupillary distance adjustment (mm)	56-72	56-72	56-72
Weight (g)	925	825	960
Length (mm)	179	163	197
Width (mm)	197	185	197
Type	Porro	Porro	Porro

Note: Apparent field of view is calculated based on the ISO14132-1:2002 standard. For details, click here.