Compare Model Drawings, CAD & Specs Availability Price
SupIR 19-275mm f/5.5
MWIR Continuous Zoom Lens, SupIR, 19-275 mm FL, f/5.5, High Durability
SupIR 19-275mm f/5.5
MWIR Continuous Zoom Lens, SupIR, 19-275 mm FL, f/5.5, Hard Carbon

HFOV [deg]

WFOV (19 mm)

Pitch 640x512
15 µm 29.8°

NFOV (275 mm)

Pitch 640x512
15 µm 2.0°


  • Type
    Continuous Zoom
  • Focal Length
    19 to 275 mm
  • F/#
  • Spectral Range
    3.4 to 5.0 µm
  • Cold Stop FPA Distance
    19.7 mm
  • Cold Stop Clear Aperture
    Ø3.56 mm
  • Back Focal Length
    24.7 mm in air (Assuming 1.5 mm Ge Window & Filter)
  • Minimum Focus Range
    5 m Wide, 50 m Narrow
  • Nuc (by defocus)
  • Focus Mechanism
  • Focus Time
    ≤8 s
  • Zoom Mechanism
  • Zoom Time
    ≤5 s
  • Through-zoom Boresight
    Within a radius of 0.15 mm at the focal plane
  • Weight
    445 g
  • Dimensions
    Ø63.5 mm x 74.3 mm
  • Drive Voltage
    12 VDC
  • Current Consumption
    0.2 A average, 1.0 A peak
  • Communication Interface
  • Operating Temperature Range
    -32°C to +65°C
  • Storage Temperature Range
    -40°C to +71°C
  • Sealing
    IP 67 front element only
  • Wavelength Region


Your Long Range Distance Needs Met

High Performance Mid-Wave Focal Plane

Using advanced technologies, top-quality materials and unique coating techniques, together with innovative engineering and opto-mechanical designs, we have earned a reputation for excellent performance, durability and quality.

High-durability and Hard-carbon AR Coatings

Our highly abrasion-resistant, anti-reflective advanced optical coatings include several types of Hard Carbon coatings which provide maximum durability, energy transmission & minimal reflection. Our innovative coating technologies include:

  • Physical Vapor Deposition (PVD) – Thermal heating and electron gun
  • Ion Assisted Deposition (IAD) – Ion gun
  • Plasma Enhanced Chemical Vapor Deposition (PECVD) for DLC coatings

Passive Athermalized Lens Assembly

Our IR imaging lens assemblies incorporate passive athermalization of the lenses and opto-mechanical system to maintain the highest imaging performance over the full operating temperature range. We use advanced materials that enable unique athermalization properties and optomechanical designs that effectively compensate for optical variations over a wide temperature range.

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