1. General Overview
1.1 Main Character
7x50 binoculars is a water floating model with illuminated compass. It has two ranging tools. The
eyepiece Reticle Scale and the Calculator Dial can be used to easily determine you distance from an
object if its size is known, or vice versa. The optics is made excellently in order to give the viewer
brightness, exacting image clarity and unparallel true color of the image. The user can have confidence
whether it is being used in tour, viewing, boating, observation, or any other application.
1.2
Model
7×50 with compass
2. Technical Specification
2.1
Optical performance
Magnification: 7×
Field of view: 7.5
0
(396 ft. @ 1000 yards/131M @ 1000 Meters )
Exit pupil diameter: 6.8 MM
Exit pupil distance: 23 MM (Long eye relief for eyeglass wears)
Diopter adjusting range: -5
～
+5 DIOPTER
Interpupillary distance: 56
～
72 MM
Resolution: ≤5″
2.2 Size and mass
Size (length x width x height): 200 × 80 × 150mm
Weight
Binoculars: ≤0.9kg (1.98 lbs)
Complete product: ≤1.2 kg (2.65 lbs.)
3.
Construction Specifications
3.1 Optical system
3.1.1
Basic binoculars construction
Basic binoculars optical construction, as shown in figure 1, consist of (1) the objective lens, (2) the
Porroprisms, (3)the reticle and (4)the eyepiece. The reticle (3) and compass projective system (5) are
built into the right half of the binoculars body.
Fig 1