Nikon EDG - Manual (Page 18)

34
Jp
Fr
Es
En
35
Jp
Fr
Es
En
Type: Roof-prism central focusing
Model
EDG 8x32 EDG 10x32 EDG 7x42 EDG 8x42 EDG 10x42
Magnification (x) 8 10 7 8 10
Effective diameter of
objective lens (mm)
32 32 42 42 42
Angular field of view (˚) 7.8 6.5 8.0 7.7 6.5
Angular field of view
(apparent) (˚) *
57.2 59.2 52.2 56.6 59.2
Field of view at 1,000m (m)
(1,000 yds. (ft.))
136 (409) 114 (341) 140 (420) 135 (405) 114 (341)
Exit pupil (mm) 4.0 3.2 6.0 5.3 4.2
Brightness 16.0 10.2 36.0 28.1 17.6
Eye relief (mm) 18.5 17.3 22.1 19.3 18
Close focusing distance,
approx (m (ft.)) **
2.5 (8.2) 2.5 (8.2) 3 (9.8) 3 (9.8) 3 (9.8)
Interpupillary distance
adjustment (mm)
54-76 54-76 55-76 55-76 55-76
Length (mm (inch)) 138 (5.4) 138 (5.4) 149 (5.87) 148 (5.83) 151 (5.94)
Width (mm (inch)) 139 (5.5) 139 (5.5) 141 (5.6) 141 (5.6) 141 (5.6)
Weight (g (oz.)) 655 (23.1) 650 (22.9) 785 (27.7) 785 (27.7) 790 (27.9)
Structure Waterproof (up to 5m for 10 minutes) and nitrogen-filled
☆ Waterproof mode:
The EDG is waterproof, and will suffer no damage to the optical system if
submerged or dropped in water to a maximum depth of 5 meters for up to 10
minutes.
The EDG offers the following advantages:
• Can be used in conditions of high humidity, dust and rain without risk of
damage.
• Nitrogen-filled design makes it resistant to condensation and mold.
Observe the following when using the EDG.
• This unit should not be operated nor held in running water.
• Any moisture should be wiped off before adjusting movable parts (focusing
knob, etc.) of the EDG to prevent damage and for safety reasons.
To keep your EDG in excellent condition, Nikon Vision recommends regular
servicing by an authorized dealer.
* The number calculated by the formula [tan ω'= Γ x tan ω]
Apparent field of view: 2ω', Magnification: Γ, Real field of view: 2 ω
＊＊ With normal eyesight without accommodation
Specifications