GT-14 Gen 2+ Photonis Commercial WP

2,590.00 inc. VAT

  • White Phosphor
  • Photonis Commercial

Available on backorder


The GT-14 is a high-performance night vision monocular with advanced ergonomics and intelligent power control developed as an alternative to the standard PVS-14. It can withstand salt water, rain, high humidity and extremes of temperature, and you will get high levels of performance.

GT-14 can be used hand-held, head or helmet mounted and weapon mounted. All GT-14 units are equipped with automatic brightness control (ABC) and in-ocular IR and Low Battery indicators. This system automatically adjusts the brightness of the image tube. As a result the users will get the highest quality image resolution under varying light conditions.

Photonis Commercial image intensifier tube is a huge improvement compared to standard Gen2+ tubes with higher sensitivity, resolution and signal to noise ratio.

* This unit is not Autogated.
** This is single unit with shown specification
*** Second picture is made with similar tube.

IIT: Photonis Commercial Gen2+ White Phosphor
Parameter Min Average Max
Luminance sensitivity 2850 K. 270 570 /
Radiant sensitivity 830 nm 17 55 /
Luminance gain (at 20 μlx) 3000 5000 6000
FOM 380 1300 /
Resolution center 32 60 /
Signal to noise ratio 12 21 /
Equiv. Background illumin. / 0.15 0.40

* Even though the minimum specs are really low, every unit we have ever encountered has specs pretty close to average. We have never seen a Photonis Commercial with FOM less than 1000.
Image Intensifier Tube (IIT)Photonis Commercial Gen2+ White Phosphor
Diopter compensation-6 to +2 dpt
Battery Life50 h
Infrared illuminatoryes
Overexposure protectionyes
True field of view40°
Close focus limit0,25m
Power SupplyCR123 or AA
Dimensions120 x 50 x 60 mm
Weight320 g

The ability of an image intensifier or night vision system to distinguish between objects close together. Image intensifier resolution is measured in line pairs per millimeter (lp/mm) while system resolution is measured in cycles per miliradian. For any particular night vision system, the image intensifier resolution will remain constant while the system resolution can be affected by altering the objective or eyepiece optics by adding magnification or relay lenses. Often the resolution in the same night vision device is very different when measured at the centre of the image and at the periphery of the image. This is especially important for devices selected for photograph or video where the entire image resolution is important. Measured in line pairs per millimeter (lp/mm).

Lp/mm (Line Pairs per Millimeter)
Units used to measure image intensifier resolution. Typically, the higher the line pair, the better the image resolution. Generation 3 tubes generally have a range of 64 – 72 lp/mm, although line pair measurement does not indicate the generation of the tube. Some Generation 2+ tubes measure 28-38 lp/mm, (Gen 2+ at 54-59 lp/mm typically), while a Generation 1+ tube may have measure at 40 lp/mm.

Photocathode Sensitivity
Photocathode sensitivity is a measure of how well the image intensifier tube converts light into an electronic signal so it can be amplified. The measuring units of photocathode sensitivity are micro- amps/lumen (?A/lm) or microamperes per lumen. This criterion specifies the number of electrons released by the Photocathode (PC). PC response is always measured in isolation with no amplification stage or ion barrier (film). While for most latest 3rd generation image intensifiers the photo response is in the 1800 ?A/lm, but for the latest tubes you can expect min. 2200 ?A/lm.

Signal-to-Noise Ratio (SNR)
A measure of the light signal reaching the eye divided by the perceived noise as seen by the eye. A tube’s SNR determines the low light resolution of the image tube; therefore, the higher the SNR, the better the ability of the tube to resolve objects with good contrast under low-light conditions. Because SNR is directly related to the photocathode’s sensitivity and also accounts for phosphor efficiency and MCP operating voltage, it is the best single indicator of an image intensifier’s performance.

Figure of Merit (FOM)
Image Intensification tube specification designation, calculated on line pair per mm x signal to noise. (FOM=lp/mm * SNR).

This is nothing else then PWM but for image intensifier tubes. Offering the tube better protection and preventing resolution loss in high light conditions.

Black & White Image (White Phosphor, WP)
By using a different kind of phosphor (P45) the image looks like a black & white picture in high definition. For some people these seem to work better than for others. Personal preference.

Included accessories

Hard Case

User's manual

Users manual



Sacrificial lens

Battery adapter CR123A 3V / AA 1,5V

Battery adapter

Lens Tissue

Special prices for accessories after adding GT-14 to your cart:
Helmet Mount #183
All Holosun lasers
All TeamWendy products


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