Compare Model Drawings, CAD & Specs Availability Price
New 680465-001
FoldIR 30-450mm f/3.4
FoldIR 30-450mm f/3.4, High Durability
New 680465-002
FoldIR 30-450mm f/3.4
FoldIR 30-450mm f/3.4, Hard carbon

HFOV [deg]

WFOV (10mm)

Pitch 640x480 1280x1024
15 µm 19.3º
10 µm 12.5º 26.9º

NFOV (450)

Pitch 640x480 1280x1024
15 µm 1.3º
10 µm 0.8º 1.7º


  • Type
    Continuous Zoom
  • Focal Length
  • F/#
  • Avg.Trns.
    (3.4-4.9μm) 80% (HC)
  • Cold Stop FPA Distance
  • Cold Stop Clear Aperture
  • Minimum Focus Range
  • Nuc (by defocus)
  • Focus Mechanism
  • Focus Time
  • Zoom Mechanism
    Designated lens controller
  • Zoom Time
  • Weight
  • Dimensions
    Ø146 x 247mm
  • Drive Voltage
  • Current Consumption
    <0.5A average, 1.0A peak
  • Communication Interface
    RS422, RS232
  • Operating Temperature Range
    20ºC to +55ºC
  • Storage Temperature Range
    -40ºC to +70ºC
  • Sealing
    IP67 front element only
  • Wavelength Region


FoldIR 30-450mm f/3.4 Detection, Recognition & Identification (DRI) Range

DRI ranges enable one to easily estimate the maximum range that an object can be either detected, recognized or identified. It is important to note that these estimates are based solely on geometrical parameters – the target size, distance, lens focal length and camera detector pixel size. Signal level, detector sensitivity, atmospheric conditions and other factors are not considered!

The calculations used here are based on the “Johnson Criteria”. According to the Johnson Criteria, the minimum resolution, pixels on target, required to achieve a 50% probability for an observer to discriminate an object are:

  • Detection: An object is present – 2 pixels on target (Lower Bar)
  • Recognition: discern the type of object, a human vs. a vehicle – 8 pixels on target (Middle Bar)
  • Identification: discern specific objects, a man vs. a woman, a car model – 12.8 pixels on target (Upper Bar)

Introducing the FoldIR 30-450mm f/3.4: high performance, long-range, ideal for small size gimbals

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