BINOCULAR:M7

Model：M7, w/e

Line item No.：4-01251-10

Federal stock No.：
M4---------6650-670-2500

General：
BINOCULAR：M7 is a seven power instrument and does not have a reticle. It consists of two prismatic telescopes pivoted about a common hinge so as to permit adjustment of the distance between the eyepieces（interpupillary distance）. The hinge holds the axes of the two telescopes in parallel alinement. The prism system in each telescope erects the image and provides an offset line of sight which increases stereoscopic vision. The prism system also increases the effective optical length of the two telescopes without increasing their actual size. Each eyepiece can be focused independently of the other by turning the diopter scale in a plus or minus direction. The scale, which is calibrated in diopters, indicates the correction required for the corresponding eye. The binocular hinge is equipped with a scale which indicates in millimeters the interpupillary distance. It is waterproofed. It is a subazitute for Binocular：M115 and M15A1.
It is used solely for general observation purposes.

differences among models

data plate location
Date and identification is stamped on the left and right cover plates.

Classification： Standard B（OTCM 38641）

CHARACTERISTICS
Magnification.................................................. 7 power
Aperture........................................................... 50-mm
Field of view.................................................... 7 deg. 16 min
Exit pupil..........................................................
“F” number of objective................................
Filter.................................................................. M1