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Ống nhòm ngày hàng hải Nikon 7x50IF WP Compass (chống nước+la bàn)

Miêu tả:

Waterproof (up to 2m/6.6 ft. for 5 minutes) and fog-free with nitrogen gas
All lenses and prisms are multilayer-coated for the brightest images
Rubber armouring for shock resistance and a firm, comfortable grip

Tính năng kỹ thuật ống nhòm 

  • Waterproof (up to 2m/6.6 ft. for 5 minutes) and fog-free with nitrogen gas
  • All lenses and prisms are multilayer-coated for the brightest images
  • Rubber armouring for shock resistance and a firm, comfortable grip
  • High-eyepoint design for a clear field of view even for wearers of eyeglasses
  • Built-in compass and scale to ascertain subject direction, and distance or size (7x50IF WP Compass)
  • Can be fixed to a tripod using optional tripod adaptor

Specifications

Magnification (x)7
Objective diameter (mm) 50
Angular field of view (Real/degree) 7.0
Angular field of view (Apparent/degree) 46.4
Field of view at 1,000m (m) 122
Exit pupil (mm) 7.1
Relative brightness 50.4
Eye relief (mm) 18.0
Close focusing distance (m)     25.0
Weight (g)1,210
Length (mm) 181
Width (mm) 203
Interpupillary distance adjustment (mm) 56-72

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