Night Vision Weapon Sight
NS-357A
Features
Description
3X magnification
The NS-357A is a 3X magnification passive image intensifier sight for use on infantry weapons. In particular, it matches the range of individual rifles of any calibre. The main characteristics are the low weight, the small dimensions and excellent boresighting retention and performance under all light conditions due to the optimized optics and high performance image intensifier tubes.
Ergonomic design Lightweight Compact High performance Gen 3, XD-4 or XR5 Image intensifier tubes Red illuminated reticle Field replaceable reticle Rugged aluminium housing Standard AA batteries High boresight stability High reliability Standard MIL-STD-1913 mount
The NS-357A incorporates an adjustable Mounting Bracket Assembly that allows direct mounting on Picatinny (MIL-STD-1913) rails, precise adjustment in elevation and azimuth and retention of boresighting under harsh military conditions. Fastening is achieved by means of a torque knob, which ensures boresight retention under harsh military conditions and even when the sight is removed and refitted several times onto the weapon. Weapon brackets are available for a large variety of weapons without MILSTD-1913 rails. The optics of the NS-357A are optimized to take advantage of the characteristics of current, high performance image intensifiers. They are lightweight, offer excellent resistance to adverse conditions and have scratch resistant and multilayer antireflection coating. The sights incorporate most innovative key technology such as the red illuminated reticle that can easily be changed in the field without the need for any tools. This feature allows the use of the sights with different weapons without having to return them to the manufacturer once a user wants to operate them in a different weapon system. A coin or the rear part of the bullet cartridge can be used to disassemble the reticle and to replace it with another. The interchangeable reticle allows the end user to allocate a set number of sights to its divisions or battalions that are able to be interchanged among various weapon types and thus minimise its investment on the total quantities of night vision systems that are required to support its operations.
2
4
6 8 10 6
10
8 4
3X
TUV HELLAS
TUV CERT EN ISO 9001
Factory: 57 Ioannou Metaxa St., GR-19400, Koropi, Athens, Greece Tel.: +30-210-6641420, Fax: +30-210-6644093
Theon's reticle design allows, furthermore the incorporation onto the reticle disk of large ballistic information, lead marks and stadia lines for shooting against moving targets, distance measuring features and other signs and symbols upon customer request. The NS-357A sight is powered by two (2) AA batteries and employs an 18mm format 3rd Generation, XD-4 or XR5 image intensifier assembly in the ANVIS configuration.
Headquarters: 7 Stratigi St., GR-15451, N. Psychico, Athens, Greece Tel.: +30-210-6728610, Fax: +30-210-6728624
e-mail: info@theon.com, URL: www.theon.com
NS-357A
Night Vision Weapon Sight
Technical Specifications Physical Weight (including batteries) Dimensions (LxWxH) Environmental
1.2 kg 228 x 104 x 131 mm Complies with MIL-STD-810
Optical
Field repleaceable red illuminated ballistic reticle
Adjustable mounting bracket with torque knob
General Magnification Field of view System focus System resolution (min)
3X 13째 fixed focus (25m to infinity) 2.6 lp/mrad
Objective Lens Focal length F# T# Free Aperture
75mm 1.3 1.6 58 mm
Eyepiece Focal length Exit pupil Eye relief Focus
25 mm 8 mm 30 mm +4 to -4 dioptries
Reticle Type Colour Intensity Replacement
Ballistic or per customer specification Red Adjustable In the field without tools
Electrical Batteries Battery life
2 X 1.5V type AA Alkaline > 60 hours at 20째C
Image Intensifier
18mm, ANVIS, Gen 3, XD-4, XR5
Mounting Bracket Type
Adjustable mounting bracket Conforms to MIL-STD-1913 (Picatinny) 50 mils 45 mils 0.25 mils/click
Elevation Azimuth Adjustment identification recognition 210m
400m 580m
0
250
500
1050m 750
1000
1250
Theon Sensors S.A. may, at any time and without notice, make changes or improvements to the product and services offered and/or cease producing or commercialising them. The THEON Sensors logo and trade mark are the property of THEON Sensors SA.