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Home / Thermal, SWIR & UV lenses / LWIR Thermal lenses
50 mm, F1.35, M45x1-mount LWIR Thermal Lens (LS-STRLW51L1)

Thermal, SWIR & UV lenses

50 mm, F1.35, M45x1-mount LWIR Thermal Lens (LS-STRLW51L1)

Model LS-STRLW51L1

50 mm, F1.35, M45x1-mount LWIR Thermal Lens. Long-wavelength infrared (LWIR) thermal lenses designed for commercial and military applications. At a glance: focal length 50 mm; sensor 1024x768 14um; aperture F1.35; mount M45x1; distortion 4.5%.

$529.00 USDIn stock · 2 available

Inventory updated Oct 14, 2026

0.52 kg shipping weight · Ships in 2-3 weeks
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Specifications

ModelLS-STRLW51L1
Focal length50 mm
ApertureF1.35
Sensor1024x768 14um
Field of view10.14(D)x7.91(H)x5.86(V)(20mm)
Distortion4.5%
Relative illumination0.85
Focus range20mm
Mechanical back focal length7 mm
MountM45x1
Dimensionsdia. 72 x L152.6 mm
Operating temperature40℃ to +80℃
Focus methodManual focus
Shipping weight (estimated)0.52 kg

Photo shows a representative model of this series; see the specifications for this model.

Applications

  • Commercial
  • Military
Complete the station

Drive the light from a light controller and pair it with a lens for your field of view and working distance.

Light controllers LensesSelection guide

Other sizes in the LWIR Thermal lenses series

ModelSizePriceAvailability
LS-SLWIR8550 mm, F1.1 $529.00 3 in stockView
LS-SLWIR8650 mm, F1.1 $529.00 4 in stockView
LS-SLWIRB150 mm, F1 $529.00 5 in stockView
LS-SLWIRB350 mm, F1.1, Flange-mount $529.00 5 in stockView
LS-SLWIRC850 mm, F1, Flange-mount $529.00 3 in stockView
LS-SLWIRD350 mm, F1, Flange-mount $529.00 4 in stockView
LS-SLWIRG450 mm, F1.1, Flange-mount $529.00 3 in stockView
LS-SLWIRG950 mm, F0.9 $529.00 2 in stockView
LS-SLWIRJ450 mm, F1.2 $529.00 5 in stockView
LS-STRFA66K6L150 mm, F1.0 $529.00 3 in stockView
LS-STRFA66N6L150 mm, F0.9 $529.00 5 in stockView
LS-STRLW20L250 mm, F1.2 $529.00 3 in stockView
LS-SLWIR7655 mm, F1, M45x1-mount $579.00 3 in stockView
LS-STRLW35L155 mm, F1.2 $579.00 3 in stockView
LS-STRLW35L255 mm, F1.2, Flange-mount $579.00 5 in stockView
LS-LIR0067-0H60-180 mm, F3.5, M45x1-mount $619.00 2 in stockView
LS-SLWIR7370 mm, F1.2, Flange-mount $709.00 4 in stockView
LS-STRFA66P5L170 mm, F8 $709.00 4 in stockView
LS-STRLW24L175 mm, F1 $749.00 5 in stockView
LS-STRLW25L175 mm, F1 $749.00 2 in stockView
LS-STRLW39L175 mm, F1.2, Flange-mount $749.00 3 in stockView
LS-LIR0038-0G100 mm, F1.2 $969.00 4 in stockView
LS-STRLW29L1100 mm, F1, M45x1-mount $969.00 3 in stockView
LS-SLWIRB9120 mm, F1.2, M45x1-mount $1,149.00 5 in stockView

See all 194 models in the LWIR Thermal lenses series