Quantum XD50S Thermal Scope ...#77317

quantum-xd50s-thermal-scope Click to Zoom


Frost resistant

Degree of protection IPX4

Degree of protection IPX4

Protected against water sprinkling

Video output

Video output

Video output allows to conduct video recording to external devices without the use of additional adapters and camera or camcorders.

Digital zoom

Digital zoom

Digital zoom

External power supply

External power supply

The external power supply prolongs device’s operation time.


Magnification: 2.8x ...11.2x
Refresh rate: 50 Hz
Range of detection: 1250 m
Field of view, HxV: 11x8.3°
Operating temperature: -25 ... +50 °С
Stadiametric rangefinder
7 Color paletts

What's in the box

Thermal imaging scope Quantum XD50S | Carrying case | User manual | Video cable | Hand strap | Automotive cigarette lighter adapter | Spare battery container | Cleaning cloth | Warranty card

Where to buy

MANUAL (PDF) | Quantum thermal imagers. Questions

(Thermal imagers Quantum XD&XQ) Colour palettes

Colour palettes

Quantum offers a choice of 7 colour palettes for captured by objective lens image, monochrome (usual “hot white”, “hot black”) and colour highlighting the hottest and coldest areas with different colours

(Thermal imagers Quantum XD&XQ) Rangefinding reticle

Rangefinding reticle

Quantum has a stadiametric rangefinder performed in the shape of rangefinding reticle which enables distance measuring to observed objects with known height (deer - 1,7m; boar – 0,7m; hare – 0,3m) with a sufficient precision.

(Thermal imagers Quantum XD&HQ) High image frequency

High image frequency

Due to the high image frequency (50 Hz) it is comfortable to use thermal camera dynamically (during rapid moving of observer or object of observation).

(Thermal imagers Quantum XD&XQ) Operating modes

Operating modes

The Quantum suggests three operating modes, each designed to deliver best possible image in specific viewing conditions. The modes are as follows: “City” (enhanced contrast), “Forest” (low contrast) and “Identification” (improved rendering of hot objects’ details).

Long viewing range

Actual range of detection of a human figure (1.8x0.5m) in the field (human has outerwear, in the field against the background of the forest) for the Quantum models varies from 500 to 1250 m, depending on the model.

(Thermal imagers Quantum XD&XQ) Display OFF

Display OFF

When it is necessary to temporarily stop observation the user can apply DISPLAY OFF function. It provides the necessary level of camouflage (no light from the eyepiece of the device) between observation sessions as well as the fast restart of observation (when display is turned off, all other systems are working; for normal operation it is enough just to power on the display again).

(Thermal imagers Quantum XD&XQ) Power saving mode

Power saving mode

Disabling the video output module in the Quantum thermal scopes increases self-contained operating time on a set of batteries or external power supply.

(Thermal imagers Quantum XD&XQ) Calibration


The Quantum suggests three calibration modes: silent manual mode (“M”), automatic (“A”) and semiautomatic (“H”). The “A” mode implies calibration without user participation (process initiation (actuation of the shutter) takes place automatically). In the “H” mode the user decides on his own if calibration is required based on the image quality. Button “Cal” is pressed in this mode. Manual calibration (“M”) is carried out by pressing the button when the lens cap is closed. The “M” mode is recommended for hunting due to silent operation.

(Thermal imagers Quantum XD/XQ) Body


The body of fiberglass reinforced plastic is able to effectively withstand impact, moisture and dust which allows the units to be used in extreme conditions. The rubber armouring ensures secure grip of the unit.

(Thermal imagers) Brightness and contrast control

Brightness and contrast control

The control wheel located next to the lens allows the user to setup brightness and contrast most appropriate for specific situation.  

(Thermal imagers) Self-contained power supply

Self-contained power supply

The Quantum is powered with four AA size (rechargeable) batteries. The batteries are stored in a container which is then placed in a battery compartment of the unit.      

(Thermal imagers) External power supply

External power supply

Operation time of the unit can be significantly increased thanks to the use of external power supplies (for example, Pulsar EPS3/EPS5) that can be connected with a special jack. When used in frosty weather, the power supply can be stored under the clothes.

(Thermal imagers Quantum XDS) User interface

User interface

Actual information about the status of the thermal imaging device, depicted in the form of blue icons and numbers, is located on the data panel in the lower portion of the screen, and does not interfere with the image observed. When switching between various functions (digital zoom, colour inversion, brightness/contrast settings), the respective large sized icon appears in the right upper portion of the screen

(Thermal imagers Quantum XD&XQ) Controls


Main control functions (turning on and off the unit, sensor calibration, colour inversion/digital zoom) are carried out with the buttons on the upper panel. The size and location of the buttons are customised for comfortable use both with a gloved or bare hand. Brightness and contrast are set up with the controller wheel located next to the objective lens.

Electronic components
Frame Rate, Hz 50
Microbolometer resolution, pixels 384x288
Display type OLED
Optical characteristics
Magnification, х 2.8
Digital zoom, x 2x; 4x
Objective Lens F50/1.2
Field of View,°, horizontal * vertical 11x8.3
Diopter adjustment, dptr. ± 5
Range of Detection, m
Range of detection, m (object high*width = 1,7*0,5m) 1250
Power Supply
Power Supply, V 4 ÷ 6
Battery type 4xAA
External Power Supply DC 8.4 ÷ 15
Physical & operational characteristics
Operating Temperature,°С - 25 … +50
Level of Protection (acc. to IEC 60529) IPX4
Dimensions, mm 207х86х59
Weight (without batteries), kg 0.43

Thermal Imaging Scopes Quantum XQ/XD/HD/LD (discontinued). Other modifications

Modification Frame Rate, Hz Magnification, х Range of detection, m (object high*width = 1,7*0,5m) Weight (without batteries), kg
Quantum XQ50 Thermal Scope 50 4.1 ... 16.4 1800 0.43
Quantum XQ38 Thermal Scope 50 3.1 ... 12.4 1350 0.35
Quantum XD38S Thermal Scope 50 2.1 950 0.35
Quantum XQ19 Thermal Scope 50 1.6 ... 6.4 680 0.32
Quantum XD19S Thermal Scope 50 1.1 500 0.32
Quantum HD50S Thermal Scope 30 2.8 1250 0.43
Quantum LD50S Thermal Scope 9 2.8 1250 0.43
Quantum HD38S Thermal Scope 30 2.1 950 0.35
Quantum LD38S Thermal Scope 9 2.1 950 0.35
Quantum HD19S Thermal Scope 30 1.1 500 0.32
Quantum LD19S Thermal Scope 9 1.1 500 0.32

Thermal Imaging Scopes Quantum XQ/XD/HD/LD (discontinued). Reviews See all Reviews

Quantum XD38S thermal imaging scope as evolution of popular product line

Digital night vision devices and thermal cameras have an important peculiarity which distinguishes them from NV devices based on image intensifier tubes. Their quality and capabilities are characterized not only by form factor and type of materials and parts. Advanced electronic components are the body of the device whereas the soul into the set of expensive machinery is inhaled by software.  


Next Stage

Getting acquainted with thermal scope Quantum HD19S


Accessories See all Accesories

pulsar accessories

The Pulsar neck strap is designed to be fixed to the devices which are equipped with ¼ inch tripod socket. It can be used with thermal imagers Quantum/ Quantum S and night vision devices Challenger and others.

pulsar accessories

Recording resolution: 640х480 pix
Type of memory card: SD

pulsar accessories

External power supplies EPS5 are designed for the use with digital units and NV riflescopes, thermal imaging scopes.

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