Main picture: this model's dimensioned drawing, from its printed dimensions. The photo shows a representative lens of this range, not this exact model; size and shape differ by model.

Thermal, SWIR & UV lenses

50 mm, F1.0 LWIR thermal lens (LS-SWL-0142)

Model LS-SWL-0142

  • Focal length50 mm
  • MountM45x1.0
  • Sensor1/2"
  • ApertureF1.0
$779.00

Ships in 2-3 weeks

0.62 kg shipping weight

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50 mm, F1.0 LWIR thermal lens (LS-SWL-0142)LS-SWL-0142

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LS-SWL-0142: focal length 50 mm, sensor 384 x 288 17 µm, aperture F1.0, focus range 5m~∞.

50 mm, F1.0 LWIR Thermal Lens. Long-wavelength infrared (LWIR) thermal lenses designed for commercial and military applications. At a glance: focal length 50 mm; sensor 384×288 17μm; aperture F1.0; mount M45×1.0; distortion -0.48%.

  • Tracked worldwide shippingTracked UPS or DHL
  • 3-year warranty, minimumCovers defects in materials and workmanship
  • Expert machine-vision support includedFrom our engineering team, incl. a licensed P.E.
  • Volume discounts and Net 30For approved business accounts; purchase orders welcome
  • 90-day returnsUnused items, counted from delivery; free US return label; no restocking fee
  • Secure checkout by ShopifyCard, PayPal, Shop Pay or Google Pay

Specifications

General

ModelLS-SWL-0142
Angle of view (deg)9.38(D)x7.5(H)×5.62(V)
Front lens coatingAR

Optics

Focal length50 mm
ApertureF1.0
Distortion-0.48%
Relative illumination0.9
Focus range5m~∞
Mechanical back focal length7.34 mm
Focus methodAdjustable focus
Image circle (derived)dia. 8.2 mm, from the 384 x 288 detector at 17 micron pitch

Sensor and imaging

Sensor384×288 17μm

Environment and compliance

Operating temperature-40 °C to +80 °C

Mechanical

MountM45×1.0
Dimensionsdia. 61 x L69.2 mm
Weight<370 g
Shipping weight (estimated)0.62 kg

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

Engineering data

Field of view with the LS-SWL-0142

Worked out from this lens's own focal length, image circle and closest focus: what it sees at your working distance, on the sensor you use.

Focal length50 mm
Image circleØ 8.2 mm
Angle of view7.3° × 5.5°Calculated for a 1/2" sensor; 9.1° diagonal
Closest focus5000 mm
Distortion0.48 %
Back focal length7.34 mmmechanical
SizeØ 61 × 69.2 mm
Weight< 370 g
Field of view (width × height) of the 50 mm lens by sensor format and working distance
Sensor formatAt 5000 mm
1/3"4.8 × 3.6 mm480 × 360 mm
1/2.9"4.98 × 3.74 mm498 × 374 mm
1/2"6.4 × 4.8 mm640 × 480 mm

Thin-lens approximation: field of view ≈ sensor size × working distance ÷ focal length, with the distance measured to the front of the lens; closest to reality when the distance is many times the focal length. Sensor sizes are typical for each optical format.

Other models in the LWIR Thermal lenses (LS-SWL-S01) series

See all 194 models
ModelFocal lengthMountSensorPriceAvailabilityLink
LS-SWL-0142This model50 mmM45x1.01/2"$779.00 Ships in 2-3 weeks
LS-SWL-003550 mmM34x0.51/1.2"$779.00 Ships in 2-3 weeks View
LS-SWL-003850 mmFlange mount1/1.2"$779.00 Ships in 2-3 weeks View
LS-SWL-006050 mmFlange mount1/1.2"$779.00 Ships in 2-3 weeks View
LS-SWL-007550 mmM44x1.51/1.7"$779.00 Ships in 2-3 weeks View
LS-SWL-007650 mmM44x1.51/1.7"$779.00 Ships in 2-3 weeks View
LS-SWL-009050 mmM34x0.51/1.8"$779.00 Ships in 2-3 weeks View
LS-SWL-009150 mmFlange mount1/2"$779.00 Ships in 2-3 weeks View
LS-SWL-010050 mmFlange mount1/1.7"$779.00 Ships in 2-3 weeks View
LS-SWL-010450 mmFlange mount1/1.7"$779.00 Ships in 2-3 weeks View
LS-SWL-012350 mmFlange mount1/1.7"$779.00 Ships in 2-3 weeks View
LS-SWL-012850 mmM57x0.751/1.2"$779.00 Ships in 2-3 weeks View
LS-SWL-013150 mmM33x0.751/1.2"$779.00 Ships in 2-3 weeks View
LS-SWL-015250 mmM29x0.61"$779.00 Ships in 2-3 weeks View
LS-SWL-016950 mm1/1.2"$779.00 Ships in 2-3 weeks View
LS-SWL-019450 mmM45x11.1"$779.00 Ships in 2-3 weeks View
LS-SWL-007055 mmM45x11.1"$839.00 Ships in 2-3 weeks View
LS-SWL-018455 mmM37x0.0.51/1.2"$839.00 Ships in 2-3 weeks View
LS-SWL-018555 mmFlange mount1/1.2"$839.00 Ships in 2-3 weeks View
LS-SWL-002460-180 mm (medium-wave / MWIR)M45x11/1.2"$899.00 Ships in 2-3 weeks View
LS-SWL-006870 mmFlange mount1.1"$1,019.00 Ships in 2-3 weeks View
LS-SWL-015670 mmM12$1,019.00 Ships in 2-3 weeks View
LS-SWL-017575 mmM34x0.51/1.2"$1,069.00 Ships in 2-3 weeks View
LS-SWL-018875 mmFlange mount1/1.2"$1,069.00 Ships in 2-3 weeks View
LS-SWL-017475 mmM45x0.51/1.2"$1,079.00 Ships in 2-3 weeks View