Leica Calonox 2 Sight

Material number

The new Leica Calonox 2 Sight thermal sighting camera is not just a further development – it’s a genuine benchmark in terms of design and function. Completely designed and made in Germany, it wins users over with its compact ergonomic shape and practical, intuitive operation – it’s very easy, for example, to select day or night mode. The high-quality European sensor from LYNRED, together with Leica’s proven image processing software (Leica Image Optimization – LIO™) ensures even sharper images, rich in contrast and detail. What’s more, the Calonox 2 Sight no longer needs individual calibration, but can be used out-of-the-box and swapped between rifles.

  • Entirely designed & made in Germany

  • Light and compact construction

  • No rifle calibration needed (out-of-the-box use)

  • Large field of view and very detailed image, optimum viewing comfort

  • Extremely easy operation with a few intelligent buttons

  • Ready for use within seconds of switching on


“In a modern society, we hunters must always question where our limits are. Technology has been changing our lives since the dawn of humankind. And with it, the way we hunt has also evolved. In the end, technology isn’t responsible for our behaviour – our character is. Technology gives me the certainty of knowing what’s waiting for me in the dark.”

– Robert Strasen


Focusing on the essentials

The new Leica Calonox 2 Sight thermal sighting camera is a genuine benchmark in terms of design and function. Designed and made in Germany, the Leica Calonox 2 Sight focuses on safe and ethical hunting with its ergonomic compact shape, practical and intuitive control buttons, and optical performance.


Large field of view and very detailed image

Hunters and nature observers can count on natural, sharp, high-contrast images, thanks to the high-quality LYNRED sensor and the processing software that’s been further refined by Leica (LIO™ – Leica Image Optimization). Together with a large field of view, objects with the standard size of 1.8 meters can be clearly found at up to 2210 meters.  Recognition is possible at 770 meters and reliable identification at 390 meters.


Easy to swap between different rifles

Thanks to highest-precision components and a sophisticated manufacturing process, the Leica Calonox 2 Sight arrives precisely centered. As a result, the clip-on camera no longer needs individual calibration, but can be used out-of-the-box and swapped between rifles. Point of impact does not change, even if the device is repeatedly removed and remounted. A control shot is recommended in the interests of ethical hunting.

*Deviations may occur for technical reasons. Please see operating instructions.


Light & compact unit with the right riflescope

The Calonox 2 Sight can be used with most commercially-available riflescopes. Combining it with the Leica Fortis 6 1.8-12x42i creates a perfect unit: a compact overall system for night hunting. Mounting is done via standard adapters, which are available for almost all scopes.


Optional remote control for activating video and photo function

An optional remote control can be conveniently attached to the comb or forestock and activates the photo/video function. This eliminates the need to change position and allows continuous sighting through the scope.


Software-based shutter is silent and smooth

Conventional thermal cameras periodically recalibrate themselves with an audible “click” and a frozen frame. The Leica Calonox 2 thermal cameras are designed to be “shutterless”. Leica software enables silent and instantaneous recalibration – without freezing the image.


Easy to switch from day to night mode

Like all Leica products, the Leica Calonox 2 Sight can be operated intuitively. A large, sturdy metal control ring turns the device on – and makes it easy to switch from day to night mode. A latching magnetic switch keeps the unit powered up during a switchover, thus saving time.

Leica Calonox 2 Sight
Device type Thermal imaging device    
Type No. 1966    
Order no. 50511    
Scope of delivery Cordura carrying case, charging cable, Tenebraex flip cover, carrying strap, cleaning cloth, quick-start guide    
Sensor type VOx    
Sensor size 640x480 pixels    
Screen diagonal 0.49”, active area 0.35”    
Pixel size 12µm    
Display type OLED    
Display resolution 1280 x 960 pixels    
Refresh rate 60 Hz    
Lens focal length 42mm / 1.1    
Thermal sensitivity (NETD) < 40 mK    
Basic optical magnification 1x    
Digital Zoom 1x/2x temporary    
Field of view 10.3° x 7.7° (18 x 13.5 m/100 m)    
Diopter adjustment no    
Acquisition range/Resolution 2,210 m/2 px (2,417 yrd/2 px)    
Detection range/Resolution 770 m/6 px (842 yrd/6 px)    
Identification range/Resolution 390 m/12 px (427 yrd/12 px)    
Reticle correction adjustment not necessary    
Video output Wi-Fi, USB-C    
Video recorder yes    
Cable socket


Wireless connection WiFi (2.4 GHz) + Bluetooth®    
Internal memory 32 GB    
Protection class IP 67, nitrogen-filled    
Operating temperature -20 °C to +50 °C (-4°F to 122°F)    
Operating temperature   
(for charging battery)
+10 °C to +30 °C (50°F to 86°F)    
Battery life approx. 8 — 11 h    
Battery 2x 2420 mA/h, not removable    
Charging options USB-C, household plug, power bank, car (cigarette lighter)    
Mounting thread M43x0.75    
Tripod thread A ¼ DIN 4503 (¼”), M4 standard thread    
Material fiberglass-reinforced plastic with silicone armoring    
Dimensions (L x W x H) 139 x 90 x 61 mm (5.5 x 3.5 x 2.4 in)    
Weight (with battery) approx. 590 g (20.8 oz)    
Shutter shutterless    
Additional mounting Picatinny    
Bulletproof up to .50 caliber    
Remote control (mountable button for LRF or video/snapshot) 59083    

Instructions for use

Please note the following information concerning the point of impact and regarding the liability of Leica Camera AG (“LEICA”).

The Calonox 2 Sight / Calonox 2 Sight LRF (hereinafter referred to as “Calonox”) is adjusted ex works such that the point of impact can shift by up to 2.4 cm at 100 m. In addition, the overall system used (e.g. rifle, mount, adapter, riflescope) may shift the point of impact, due to the quality of the riflescope and adapter used as well as the type of mount, a changed center of gravity, or additional weight on the riflescope lens.

The Calonox provides support for safe and responsible hunting. You yourself must always assess your surroundings, the surroundings of the target, and the area in between, as well as the current overall situation and its variability. You yourself are responsible for your shot. You are also responsible for ensuring that the overall system works perfectly in conjunction with the Calonox. 

LEICA recommends that you familiarize yourself with the Calonox on a shooting range before using it to hunt. Also check the overall interplay of the equipment and make sure the point of impact is correct. Furthermore, LEICA recommends that you regularly compare all settings with real shots in a safe environment (e.g. shooting range) before using the device to hunt. Based on your own assessment of “whether” and “how”, adjust the settings as required. Users of the Calonox assume full personal responsibility for the use of all functions. 

LEICA accepts no liability for damages arising in connection with the use of the Calonox, except as stated in the following sentences. This exclusion does not apply to damages caused by an intentional or grossly negligent breach of duty by LEICA or by a legal representative or vicarious agent of LEICA.In the event of a simple or slightly negligent breach of duty by LEICA or a legal representative or vicarious agent of LEICA, LEICA shall only be liable (a) – albeit without limitation – for damages resulting from injury to life, body, or health; and (b) for damages arising from the breach of material contractual obligations (material contractual obligations being those obligations whose fulfillment is essential for the proper execution of the contract and on whose compliance the customer regularly relies and is entitled to rely); in these cases, LEICA’s liability shall be limited to the level of compensation typical for the respective contract and foreseeable at the time of conclusion of the contract. The limitations of liability in the preceding sentence shall not apply if LEICA has fraudulently concealed a defect or has assumed a guarantee for the quality of the goods which entitles the user to compensation. In addition, any mandatory statutory liability, in particular under the Product Liability Act, shall always remain unaffected.