Machine Vision Lenses and Optics - STEMMER IMAGING


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Transmission from 450 nm up to 2000 nm with reduced focus shift

Kowa LM-HC-VIS-SWIR lenses with a transmission of 450-2000 nm cover the range from visible to SWIR with the advantage of a reduced focus shift.

The lenses are suitable for a large number of applications with VIS-SWIR and hyperspectral cameras to precisely analyse the reflection properties of materials over a wide range of wavelengths. This is often used in machine vision for material analysis and grading.

Reasons for the Kowa LM-HC-VIS-SWIR

Corrected lenses for perfect image quality

The primary benefit for VIS-SWIR correction is that it allows an image to remain in focus even when the wavelength changes from visible to infrared or vice versa. With a standard visible, NIR or SWIR lens, a focus shift will occur due to differences in the refractive index if the wavelength fluctuates. However, by incorporating extra low dispersion (XD) glass and carefully aligning all internal lens elements, such focus shift problems are eliminated.

Suitable for high-performance cameras

The lenses are ideal for applications with 1" sensors with a pixel size of down to 3.1µm and suitable for 12 megapixel resolution for use with top performance cameras.

Related camera products

The Kowa LM-HC-VIS-SWIR lens is suitable for a large number of applications with VIS-SWIR and hyperspectral cameras. Please have a look at the following cameras:

Learn more


  • Sensor size: up to 1"
  • Pixel size (µm): 3.1 and larger
  • Focal length: 8, 12, 25 and 50 mm
  • Aperture: F1.8 - F16
  • Wavelength range: 450-2000 nm (VIS to SWIR)
  • Camera mount: C-mount
  • Miscellaneous: Reduced focus shift and very low distortion

Show products

of products were found. products were found. Show all
Model Filter thread Camera mount (optics) M.O.D. (mm) Focal length (mm) Max. sensor size Min. pixel size Aperture
KOWA LM12HC-VIS-SWIR M34 x 0.5 C-Mount 2000.0 12.00 1" 3.10 F 1.80 - F 16.00
KOWA LM16HC-VIS-SWIR M30.5 x 0.5 C-Mount 200.0 16.00 1" 3.10 F 1.80 - F 16.00
KOWA LM25HC-VIS-SWIR M27 x 0.5 C-Mount 200.0 25.00 1" 3.10 F 1.80 - F 16.00
KOWA LM35HC-VIS-SWIR M34 x 0.5 C-Mount 200.0 35.00 1" 3.10 F 1.80 - F 16.00
KOWA LM50HC-VIS-SWIR M30.5 x 0.5 C-Mount 500.0 50.00 1" 3.10 F 1.80 - F 16.00
KOWA LM8HC-VIS-SWIR M55 x 0.75 C-Mount 200.0 8.00 1" 3.10 F 1.80 - F 16.00