Fero 52
From Night Vision Wiki
The Fero 52 is a night vision device of west German origin. The device uses a generation-1 image intensifier.
The housing is biocular and can easily be distinguished from the Fero 51 by its large objective lens. The device has a magnification of 4x and a field of view of 10°. It is powered up by pressing a small button that shortly supplies high voltage to the the tube. After pressing the button the tube slowly discharges. The device is powered by 2 1.5v batteries.[1] There also appears to be either a licensed or cloned device produced by Zrak called PRD 4x80.[2]
