JavaScript seems to be disabled in your browser.

You must have JavaScript enabled in your browser to utilize the functionality of this website. Click here for instructions on enabling javascript in your browser.

ARMASIGHT Prometheus 336 HD 5-20x75 (60 Hz)
The Armasight Prometheus HD is a family of Thermal Imaging monoculars with professional 75mm and 100mm Germanium (Ge) High Definition objective lenses. The Prometheus product line is based on the latest FLIR Tau 2 VOx microbolometer core technology, and includes several different models, each optimizing performance, price, and state-of-the-art capabilities for a variety of uses and missions. The Prometheus HD is a solid-state, uncooled, long-wave infrared, magnified, dedicated handheld thermal imager intended for day and nighttime missions.

The Prometheus HD Thermal Imaging monoculars are characterized by their simple but intuitive controls, functions, and features that are layered among direct button adjustments, direct combination button functions, and electronic menu selections. The Prometheus has the ability to record imagery and is equipped with video-out capabilities.

The Prometheus HD Thermal Imaging monocular represents one of the most sophisticated devices for long-range observation on the market today, due to its superior price-to-performance value.

Special User-Adjustable Imaging Tools
Active Contrast Enhancement (ACE) – a digital “Contrast” correction that allows for a smart scene optimization based on dynamic adjustments where a variety of contrast levels occur depending on relative scene temperature.
Second Generation Digital Detail Enhancement (DDE) – a “Sharpness” correction that is digitally enhances the picture to present clearer imagery, significantly improves edge sharpening and further reduces image noise.
Smart Scene Optimization (SSO) – a fine-tuning computational correction that significantly improves an overall visual acuity for targets that have thermal signatures similar to a surrounding background.
Information-Based Histogram Equalization (IBHEQ) – a “Sky/Sea” enhancement – information based environment dependent algorithm that automatically adjusts camera gain and excludes pixels determined to not contain critical information, specifically helpful in scenes with lots of sky or water.
User-Controlled Manual Non-Uniformity Correction/Flat-Field Correction (UCMNUC/FFC). There is a mechanical shutter between the camera sensor and the lens. This shutter is used to perform a non-uniformity correction (NUC) also known as flat-field correction (FFC. During FFC, the shutter presents a uniform temperature source to each detector element in the array. While imaging the flat-field source, the camera updates the offset correction coefficients, resulting in a more uniform image after the process is complete. All Prometheus models allow for user to manually trigger or interrupt scheduled UCMNUC/FFC function.
Silent Shutterless NUC ™ (SSN) – In addition to user controlled manual NUC/FFC all Prometheus models employ a digital supplemental non-mechanical flat-field correction that allows to extend the periods between mechanical shutter events and to further reduce image noise. SSN is always ON enhancement.

Multiple versions with optical magnifications ranging from 3x to 8x
75mm and 100mm F1.0 Germanium objective lens options
High-performance thermal imaging camera
Lightweight and robust design
Easy to operate
Manually adjustable eyepiece and objective lens
Real-time display
Digitally controlled features:
- Palette
- Enhancement
- Settings
- Display Brightness
- Electronic Magnification
- User-Controlled Manual Non-Uniformity Correction/ Flat-Field Correction (UCMNUC/ FFC)
Current operational state information display (battery status, active profile, palette setting)
Wireless remote control
Analog video input and output (NTSC/PAL)
Powered by two standard CR123A batteries
Power input capability
Digital video recorder (optional)
Serviceability under severe conditions
Filled with dry nitrogen to prevent internal fogging
Water and fog-resistant
Limited 3-year warranty
10-year warranty on FLIR detector

Refresh Rate 60 Hz
Magnification (NTSC/PAL) 5.3× / 6.3×
Objective Lens Type Germanium
Type of Focal Plane Array FLIR Tau 2
Pixel Array Format 336×256
Pixel Size 17 µm
Display Type AMOLED SVGA 060
Pixel Display Format 800×600
Display Brightness Discretely Adjustable to 8 Levels
Turn-on Time, max 3 sec
Digital Zoom 1x, 2x and 4x
Image Palettes White Hot, Black Hot, Fusion, Rainbow, Globow, Ironbow 1, Ironbow 2, Sepia, Color 1, Color 2, Ice-Fire, Rain, and OEM Custom
Analog Input and Output Format (resolution) PAL (768×574 pixels)/ NTSC (640×480 pixels)
Video Recording Optional Digital Video Recorder with SD card slot
Remote Control Wireless
Active Contrast Enhancement (ACE) - “CONTRAST” Yes
Second Generation Digital Detail Enhancement (DDE) – “SHARPNESS” Yes
Smart Scene Optimization (SSO) – “SMART SCENE” Yes
Information-Based Histogram Equalization (IBHEQ) – “SKY/SEA” Yes
User-Controlled Manual Non-Uniformity Correction/Flat-Field Correction (UCMNUC/FFC) Yes
Silent Shutterless NUC ™ (SSN) Yes
Objective Focal Length 75 mm
Objective F-number 1:1.1
Field of View (ang.) 4.3° x 3.2°
Exit Pupil Diameter 14 mm
Eye Relief 25 mm
Focus Method Manual
Focusing Range 5m to inf.
Diopter Adjustment Manual
Diopter Adjustment Range ±5 diopter
Battery Two CR123A 3V Lithium batteries or CR123 type rechargeable batteries with voltage from 3.0V to 3.7V (2)*
* Rechargeable batteries with voltage 3.0V-3.7V can be used only in devices with serial number starting from 140885
Battery Life at 20 °C (68 °F) up to 4 hr (optional up to 12 hrs)
Extended Battery Pack Two 18650 rechargeable batteries (3.7V), four CR123 rechargeable batteries with voltage 3.7V max, or four standard CR123A 3V Lithium batteries (operational time up to 8 hr)
External Power Supply 6 VDC/ 600mА
Operating Temperature -40° to +50°C (-40° to +122°F)
Storage Temperature -50° to +70°C (-58° to +158°F)
Impact loading 700 g
Environmental Rating Water and Fog-Resistant
Overall Dimensions 220 x 89 x 89 mm (8.6 x 3.5 x 3.5 in)
Weight (w/o Batteries) 0.86 kg (1.9 lbs)
Warranty 3 years
Warranty on FLIR detector 10 years