Russian Night viewer ZENIT NV 85mm

The design of the viewer consists of an objective lens, an eyepiece, a housing witn a built-in illuminator
and a brightness amplifier which includes an electro-optical transducer, a converter and a voltage multiplier.
The eyepiece design provides the diopter setting according to the observer's eye.
The viewer's principle of operation is based on the thousands times intensification of the radiation luminous
from the observed object with the use of the electro-optical transducer.

The objective lens forms the optical image on the electro-optical transducer cathode.
Due to the radiation the photoelectron emission occurs; the number of photoelectrons in each point of the
cathode is proportional to its illumination.
The electro-optical transducer focusing system directs and accelerates the photoelectronic flux for account
of the potential difference between the photocathode and the screen, and forms an electronic image.
On the luminescent screen the electronic image is converted into the visual image of the observed
terrain which is viewed through the eyepiece.

For the additional illumination of the observed object when the natural light is insufficient and when viewing
in the total darkness the IR illuminator built in the finder is used.

Features:

Focal length of lens, mm ........................... 1.6/85

Magnification .................................... 3.6x

Angle of view .......................................... 12

Resolution, max .................................... 110"

Dimensions, mm ............................ 205x70x100

Weight, kg ............................................ 0,6

Condition:

 All features have been tested by professional repairman and work properly.
Viewer in NEW condition. Glass on lenses is clean, no fungus.
 Comes with original case.

English manual

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