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TAU 2 Comparison Matrix

Thermal Core:

TAU 2 336

TAU 2 640

FPA / Digital Video Display Formats 336 x 256 640 x 512
Lens Options 7.5Hz 30Hz 7.5Hz 30Hz
7.5 mm - f/1.4 45°(H)x35°(V) FoV*
45°(H)x35°(V) FoV*
90°(H)x69°(V) FoV*
90°(H)x69°(V) FoV*
9 mm - f/1.25 35°(H)x27°(V) FoV*
35°(H)x27°(V) FoV*
69°(H)x56°(V) FoV*
69°(H)x56°(V) FoV*
13 mm - f/1.25 25°(H)x19°(V) FoV*
25°(H)x19°(V) FoV*
45°(H)x37°(V) FoV*
45°(H)x37°(V) FoV*
19 mm - f/1.25 17°(H)x13°(V) FoV*
17°(H)x13°(V) FoV*
32°(H)x26°(V) FoV*
32°(H)x26°(V) FoV*
25 mm - f/1.1 13°(H)x10°(V) FoV*
13°(H)x10°(V) FoV*
25°(H)x20°(V) FoV*
25°(H)x20°(V) FoV*
35 mm - f/1.2 9.3°(H)x7.1°(V) FoV*
9.3°(H)x7.1°(V) FoV*
18°(H)x14°(V) FoV*
18°(H)x14°(V) FoV*
50 mm - f/1.2 6.5°(H)x5°(V) FoV*
6.5°(H)x5°(V) FoV*
12.4°(H)x9.9°(V) FoV*
12.4°(H)x9.9°(V) FoV*
60 mm - f/1.25 5.5°(H)x4.2°(V) FoV*
5.5°(H)x4.2°(V) FoV*
10.4°(H)x8.3°(V) FoV*
10.4°(H)x8.3°(V) FoV*
100 mm - f/1.6 3.3°(H)x2.5°(V) FoV*
3.3°(H)x2.5°(V) FoV*
6.2°(H)x5°(V) FoV*
6.2°(H)x5°(V) FoV*
  *Denotes Horizontal x Vertical Field of View
Analog Video Display Formats NTSC / PAL

Pixel Pitch

17 μm
Spectral Band 7.5 - 13.5 μm
Full Frame Rates
30/60 Hz (NTSC)
25/50 Hz (PAL)
30 Hz (NTSC)
25 Hz (PAL)
  These cameras can now be exported to Strategic Trade Authorized (STA) countries with
No License Required (NLR) and only a Consignee Statement filled out. 
For a list of STA countries and other Export information visit our Export Conditions page.
Exportable Frame Rates 7.5 Hz NTSC; 8.3 Hz PAL
Sensitivity (NEdT) <50 mK at f/1.0
Scene Range (High Gain) -25°C to +100°C -25°C to +135°C
Scene Range (Low Gain) -40°C to +550°C
Time to Image <4.0 sec <5.0 sec
Factory Optimized Video Yes

Physical Attributes

Size (w/o lens) 1.75" x 1.75" x 1.18"
Lensed & Lensless Configurations Available Yes
Precision Mounting Holes (M2x0.4) on 3 sides (2 per side) Yes
Sealable Bulkhead Mounting Feature on Lens Barrel (M29×1.0), WFOV Only Yes

Radiometric Features

Spot Meter Temperatures measured in central 4×4
Advanced Radiometry Improved accuracy, moveable spot meter, image metric data, T-Linear (digital output) AR requires a separate calibration that must be performed during camera manufacture. The AR capability is captured in the camera part number.
An additional fee is charged for this feature.

Image Processing & Display Controls

NTSC/PAL (field switchable) Yes
Image Optimization Yes
Digital Detail Enhancement Yes
Invert/Revert (analog and 8-bit digital) Yes
Polarity Control (black hot/white hot) Yes
Color & Monochrome Palettes (LUTs) Yes
Digital Zoom 2x, 4x 2x, 4x, 8x
Continuous Zoom Yes
Symbology (256 gray & 256 color) Yes, single-pixel resolution for all models

Digital Video

LVDS (14-bit or 8-bit) Yes
CMOS (14-bit or 8-bit) Yes
BT.656 (8-bit) Yes
Camera Link (Expansion Bus Accessory Module) Yes
Slow Video Option (factory configured) Yes


Primary Electrical Connector 50-pin Hirose
Input Supply Voltage 4.0 - 6.0 VDC
Power Dissipation, steady state (max 2.5W during shutter event of approximately 0.5 seconds) <1.0 W <1.2 W
Flat-Field Correction (FFC) Duration <0.5 sec
Power Reduction Switch (disables analog video) Yes
RS-232 Compatible Communication 57,600 & 921,600 baud
External Sync Input/Output Yes
Discrete I/O Controls Available Yes (10-camera minimum)
Settable Splash Screens Yes (10-camera minimum)
User Configurability via SDK & GUI Yes
Dynamic Range Switching Yes No


Operating Temperature Range -40°C to +80°C
Non-Operating Temperature Range -55°C to +95°C
Temperature Shock 5°/min
Operational Altitude +40,000 feet
Humidity 5% - 95% non-condensing
Vibration 4.3g three axis, 8 hr each
Shock 200g shock pulse w/ 11 msec sawtooth
ROHS Compliant