Night Optics Argus 740 4x Gen 3 Gated Night Vision Scope - Manual (Page 9)

OPERATION
5. SIGHTING-IN THE D-740/760
D-740/760 can be sighted-in during the daytime by using the Daytime Filter/Objective
Lens Cover or during nighttime. The process is identical to any standard day scope and
is achieved by adjusting windage and elevation target turrets (fig. 1-4) located underneath
protective dust caps. The target turrets feature positive click adjustments and each click
is equal to ¼ MOA (i.e. ¼” at 100 yards, ½” at 200 yards, etc.)
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NIGHT OPTICS USA WEAPON SIGHTS
NIGHT VISION CHARACTERISTICS
MONOCHROMATIC IMAGE
Night Vision Devices produce a monochromatic image. You will not be able to see any
differentiation between colors. In particular, red and green lights will both appear green.
Take care to verify color differences with unaided vision. Exercise extreme caution when
operating aircraft, ground vehicles, or marine vessels while using night vision equipment.
COLOR SENSITIVITY
Night Vision Devices are more responsive to red and white lights than green and blue
lights. Because of this, distant red and white lights may appear closer than green or blue
lights. Exercise extreme caution when using these lights for navigation. Periodically verify
the distances to these lights with your unaided eyes.
EXTREME DARKNESS
Night Vision Devices are effective under most dark conditions including overcast starlight.
They are not practical in an extremely dark environment such as in a tunnel where there is
no natural ambient light. Without sufficient ambient light, the operator may notice pinpoint
- size sparkles (scintillation or noise) in the image area. These sparkles are small amounts
of energy generated inside the image intensifier that strike the phosphor screen and are
an indication that the device is working.