N-Vision · HALO-XRF

Estimated range, standing human, clear air

IdentifyRecognizeDetectBox claim

N-Vision HALO-XRF640×480 · 12 µm · 50 mm

160 m identify260 m recognize1,042 m detectbox says 1,850 m (unspecified)

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Estimated from pixel pitch and lens focal length using the Johnson criteria (2, 8 and 13 pixels across a 0.5 m human critical dimension), clear air, 50 % probability. A model of the optics, not a measurement — real range depends on temperature contrast, humidity and the animal.

N-Vision

N-Vision HALO-XRF

Riflescope640-classLaser rangefinder

The N-Vision HALO-XRF is a 640×480, 12 µm thermal riflescope behind a 50 mm lens, with a built-in laser rangefinder. On the Johnson yardstick that is an estimated 1,042 m detection and 260 m recognition range for a standing person; N-Vision quotes 1,850 m detection. The box figure is 1.8× the Johnson estimate — a narrower gap than most of the 60 claims recorded here.

Approx. price: ~$9,495
Sensor: 640×480 · 12 µm
Lens: 50 mm · 3.5×
Est. detection: 1,042 m · 1,140 yd

Best for

Night shooting where ranging matters — hogs and coyotes past 150 yards

We may earn a commission. Price and availability on N-Vision’s site may differ.

Box claim vs. what the optics support

Manufacturer says

1,850 m

detection, unspecified

Johnson estimate

1,042 m

detect · 260 m recognize · 160 m identify

Claim ÷ estimate

1.8×

how much further the box reaches than a 2-pixel, 0.5 m criterion

One pixel of this unit sees 0.240 mrad (12 µm ÷ 50 mm). Two pixels across a 0.5 m human is 0.5 ÷ (2 × 0.240) × 1000 = 1,042 m. The box figure is usually computed against a person’s 1.8 m height instead, which is why it comes out higher. Full explanation.

Specifications

Manufacturer-published figures, cross-checked against nvisionoptics.com, ultimatenightvision.com (LRF to 1,000 yd; 2x 18650), nvisionoptics.com warranty page.

Sensor: 640×480
Pixel pitch: 12 µm
Refresh rate: 60 Hz
Lens: 50 mm
Base magnification: 3.5×
Digital zoom: up to 8×
Field of view: 9° horizontal
Display: 640x480 OLED
Claimed detection: 1,850 m
Claim basis: unspecified
Run time: 7 h
Battery type: 18650
Weight: 41.5 oz
Length: 8.9″
Laser rangefinder: Yes
Ballistic calculator: No
Records video: Yes
Wi-Fi: Yes
Warranty: 5 years
Country of origin: USA
Approx. price: ~$9,495

Derived here

IFOV: 0.240 mrad
Est. detection: 1,042 m
Est. recognition: 260 m
Est. identification: 160 m
Claim ÷ estimate: 1.8×
Derived field of view: 8.8°
Pixels per degree: 72.9

Features

640 sensor
12 µm
50 mm lens
60 Hz
LRF
Removable battery
Records video
Wi-Fi
OLED display

What the spec sheet says

Read from the published specifications and this catalog’s own numbers — not from owner reports, which we have not collected for this unit.

For it

640×480 core — 2.8× the pixels of a 384-class unit
12 µm pitch — the 50 mm lens sees what a 17 µm core would need 71 mm to match
60 Hz core — 20 % more frames than the 50 Hz norm when an animal runs
Built-in laser rangefinder
Runs on 18650 cells you can swap in the field
Records video and streams to a phone over Wi-Fi
Detection claim is only 1.8× our estimate — one of the more conservative box figures here

Against it

NETD not published — sensitivity cannot be compared on paper
41.5 oz — 2nd-heaviest of the 36 riflescopes here
No IP rating published
Rangefinder but no ballistic calculator — the holdover is still yours to work out
~$9,495 against a ~$3,749 median for riflescopes here
41.5 oz, above the 27.5 oz median for riflescopes here