Newcon Optik NVS 7 technical specifications Operation, Specifications of NVS

OPERATION:

During daytime: It is allowed to turn on the goggles at daytime for a short period of time, for testing purposes only. Lens cap must be installed during this operation. The image will be fuzzy, and/or you will see 3 images. This is normal because of the catadioptric construction of the lens.

Warning. Never turn on the goggles with either 1x or 4x lens during daytime, without the lens caps. Doing so will result in damaged power supply and/or tube and costly repairs not covered by the warranty.

During night time: Remove the lens cap by unscrewing it counter clockwise. Keep the lens cap in a safe place, so it won't get lost. Use the focusing ring at the base of the lens in order to adjust the image. You will need to readjust the image for different objects at different distances.. You should expect to have a sharp image for distances as close as 10-20m through infinity.

Figure 5	Figure 6
NVS 7 with 4x lens	NVS 7 with 8x lens

3. SPECIFICATIONS OF NVS 7

Model	NVS	7-2	7-2SD	7-2HD	7-2XT	7-2WA	7-3HD
Image Intensifier Tube			18 mm	Gen. 2+		25 mm	18 mm
(IIT)						Gen. 2+	Gen. 3
IIT model		NC104322	NC064322	NC064322	NCXT4322	NC064331_25	N3064322
IIT resolution, lp/mm		30-36	40-45	45-57	57-72	45-64	45-72
Field of view, º			40			60	40
Eye relief, mm			25			15	25
Objective focal length,			27.5			24.76	27.5
mm
Objective F / T			F1.2 / T1.25			F1.35 /	F1.2 /
numbers						T1.4	T1.25
Magnification, x				1
Interpipillary distance,				58-72
mm
Focus range, m				0.25-∞
Dioptric correction				±5
Battery type			2 standard AA batteries
Battery life, hours		Over 80 hours without I/R; over 30 hours with I/R
Low battery indicator		-		√		√	√
I/R ON indicator		-		√		√	√
Momentary I/R button		-		-		√	-
Automatic shut-off in		-		√		√	√
the up-rise position
(optional)
Waterproof 2 m, 2		-		√		√	√
hours
Dimensions, mm				150x120x55
Weight, kg				0.480

NOTE: As the design is being continuously improved some descriptions may differ from those given above.