NVS 33                             NVS-33 is a high-resolution Night Vision Attachment that was designed to mount in front of virtually any daytime weapon scope. A variety of mounting options that include a Picatinny rail and a scope ring adaptor mount with different size inserts for the various scope objectives are available. NVS-33 can be used with daytime scopes with 1x-20x magnifications (3x-12x recommended), adding night vision capabilities to daytime target acquisition platforms. NVS-33 utilizes Gen 3 image intensifier tube and fast f/1.6 optics for a brighter and sharper image. The unit is installed, operated, and removed without tools and without affecting of the daytime scope alignment. The unit can be mounted on a spotting scope for long range reconnaissance, used hand-held as a Night Observation Device, or used in other night-time operations requiring night vision capabilities. The NVS-33 night sight attachment can be mounted to a variety of handheld weapons from medium-range sniper weapons and assault rifles.   Product Features: In-line with rifle sight attachment Three different methods of mounting satisfying almost any user's configuration: - Picatinny (MIL-STD 1913) mount - Compatible riflescope thread - Riflescope mount with several ring sizes Works in combination with any daytime scope with 3-12x magnification Works with reflex sights (ACOG, Aimpoint, Elcan, etc.) MIL-STD Powerful IR illuminator Optional attachment converting it into a night vision monocular Specifications Magnification Field of view Objective lens focal length / F number Magnification of day scope, recommended Magnification of day scope, maximum   Mechanical Battery Battery life, hours Battery life minimum, hours Dimensions, mm Weight, g   Environmental Operating temperature, C Relative humidity   Configuration Resolution, min 1x 8.8° 78 mm / F1.5 3-12x 1-20x 1x CR123 Lithium or 1x AA 60 40 180x75x60 615 -50° ... +55° Up to 98% 57 lp/mm