Model name	FEP-20W		FEP-30W		FEP-38W		FEP-50W		FEP-75W		FEP-25LER		FEP-20-60
Fieldscope diameter	85	65	85	65	85	65	85	65	85	65	85	65	85	65
Magnification (x)	20	16	30	24	38	30	50	40	75	60	25	20	20-60	16-48
Real field of view (degree)	3.3	4.1	2.4	3.0	1.9	2.4	1.4	1.8	1.0	1.2	2.4	3.0	2.2-1.1	2.8-1.4
Apparent field of view (degree)*1	60		64.3		64.3		64.3		64.3		55.3		42-60
Field of view at 1,000m (m)	58	72	42	52	33	42	24	31	17	21	42	52	38-19	49-24
Exit pupil (mm)	4.3	4.1	2.8	2.7	2.2		1.7	1.6	1.1		3.4	3.3	4.3-1.4	4.1-1.4
Relative brightness	18.5	16.8	7.8	7.3	4.8		2.9	2.6	1.2		11.6	10.9	18.5-2.0	16.8-2.0
Eye relief (mm)	20.1		25.4		17.9		17.8		17		32.3		18.4-16.5
Length (mm)*2	59		81*3		74		71		71		77		99
Outer diameter (mm)*2	63		63		63		63		63		63		63
Weight (g)*2	240		390*3		230		230		230		320		330

*1) Calculated based on ISO14132-1: 2002 *2) Without caps *3) With detachable turn-and-slide eyecup
Specifications are subject to change without any notice or obligation on the part of manufacturer.