In addition to precision, the Nightforce optics guarantee a resistance that is unmatched in this sector, since we are talking about the 3.5-15 x 50 NXS and 3.5-15 x 56 NXS riflescopes, originally conceived for military purposes.
Nightforce is a company founded in 1992 in the city of Orofino, Idaho (USA), with the aim of building high quality spotting scopes. In order to offer reliable products, Nightforce applies a separate control in 70 different points with a series of tests to prove their resistance.
All air-glass surfaces have the specialty of multi-layer broadband, applied to 1/4 wave tolerances or 0,000005 inch deposition, overcoming the most difficult abrasions.
Each Nightforce lens is assembled and aligned by hand: through optical indexing, maximum performance is produced. Of course, considerable experience and time is required, which makes the products of this American company very expensive.
The optics of the Nightforce have the lens system, which focuses the light rays very precisely, with the aim of obtaining an exceptional degree of sharpness.
The Nightforce's tubes are made from a machined 6061-T6 aluminum alloy bar, but are two to three times thicker than other riflescopes.
This means less global stress, greater thermal stability and a practically impenetrable shield inside them. The spring that maintains the pressure on the elevation and the adjustments is left polished and undergoes numerous tests to verify the degree of elastic deformation, before being used in an optic. The spring is made of titanium, the only metal known in the world which can be compressed several times and held in place without being used, while maintaining all its characteristics.
The ones we are analyzing today are the 3.5-15 x 50 NXS and 3.5-15 x 56 NXS optics.
3.5-15x50NXS
This scope, together with its older sister 3.5-15 x 56 NXS, were originally designed for small-caliber military uses, but subsequently both were also intended for hunting purposes.
These are the technical specifications of the 3.5-15 x 50 NXS lens:
Magnification: 3.5-15x
Lens diameter: 50mm
Exit Pupil Diameter: 14.3mm, 3.5x 3.6mm 15x
Field of view: 27.6ft 3.5x 7.3ft 15x
Eye relief: 3.9in (99mm)
Internal Adjustment range: 110moa elev. 80moa wind.
Click value: 250moa
Pipe diameter: 30mm (1.18in)
Eyepiece diameter: 36mm
Mounting Length: 6.1in
Weight: 30oz
Total length: 14.7in
Reticles: All NP Reticles, MLR, Mil-Dot
3.5-15x56NXS
As for the 3.5-15 x 56 NXS, the latter represents the top for those who want to frame a prey. A large lens increases the resolution and the size of the exit pupil for target acquisition is faster, thus achieving optimal performance in twilight conditions. A large field of view allows the shooter to quickly recover from recoil for a second shot. The 3.5-15 x 56 NXS offers a full 110 MOA of adjustment and a practical magnification range.
These are the technical specifications of the 3.5-15 x 56 NXS lens:
Magnification: 3.5-15x
Lens diameter: 56mm
Exit Pupil Diameter: 14.5mm 3.5x 4.0mm 15x
Field of view: 27.6ft 3.5x 7.3ft 15x
Eye relief: 3.87in (97mm)
Internal Adjustment range: 110moa elev. 80moa wind.
Click on Value: 250moa
Pipe diameter: 30mm (1.18in)
Eyepiece diameter: 36mm
Mounting Length: 5.8in.
Weight: 31oz
Total length: 14.8in
Reticles: All NP Reticles, MLR, Mil-Dot
We remind you that the initials MOA stands for minimum of angle, with which the vertical and horizontal required for the range of the weapon are determined and adjusted. After identifying the direction of the wind and its speed, the shooter must then convert it into MOA with the following formula: distance x speed = MOA.
In conclusion, the optics of the Nightforce, considering the specific characteristics and the ways in which they are assembled, guarantee precision and resistance, even after many years.