Machine Vision Lenses and Optics - STEMMER IMAGING

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Kowa LM-VM

50 megapixel lenses with a 2" image circle

The Kowa LM-VM series designated for large format sensors with a 2" image circle and up to 50 megapixel. The high-quality VM lenses can be used with sensors down to a pixel size of 3.1µm. This makes them suitable for sensors such as Sony IMX342, CMOSIS CMV12000, CMV20000 and CMV50000. The lenses are perfect for applications such as line scan, flat panel display inspection and aerial photography.

The series is offered with M42-mount and TFL-mount (M35-Mount). Different flange back adapters are available for the M42 version.

Kowa’s VM series features a newly designed switch locking screw mechanism that prevents thumb screws from falling out.



Reasons to choose the Kowa LM-VM series

Innovative screw locking mechanism

Kowa’s VM series features a newly designed switch locking screw mechanism that prevents thumb screws from falling off by utilising a fixing screw that does not rotate in a set position.
The thumb screw locks into place by sliding the fixing screw to the right side. It can then be detached by sliding the fixing screw to the left side.

Suitable for high performance cameras

The lenses are ideal for applications such as line scan used with sensors down to a pixel size of 3.1 µm and suitable for 8K resolution, rated at up to 50 megapixels for use with top performance cameras.


Specifications

  • Sensor size: up to 2"
  • Pixel size (µm): 3.1
  • Focal length: 18, 25 and 35 mm
  • Aperture: F2.84 - F16
  • Camera mount: TFL (M35) or M42
  • Miscellaneous: Aperture and focus with switch locking screws

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Model Image circle (mm) Filter thread Camera mount (optics) M.O.D. (mm) Focal length (mm) Max. sensor size Min. pixel size Aperture
KOWA LM18VM35 New model 19.30 M77 x 0.75 M35 x 0.75 100 18.00 2" 3.10 F 2.80
KOWA LM18VM42 New model 32.00 M77 x 0.75 M42 x 1 100 18.00 2" 3.10 F 2.80
KOWA LM25VM35 New model 19.30 M55 x 0.75 M35 x 0.75 100 25.00 2" 3.10 F 2.80
KOWA LM25VM42 New model 32.00 M55 x 0.75 M42 x 1 100 25.00 2" 3.10 F 2.80
KOWA LM35VM35 New model 19.30 M52 x 0.75 M35 x 0.75 100 35.00 2" 3.10 F 2.80
KOWA LM35VM42 New model 32.00 M52 x 0.75 M42 x 1 100 35.00 2" 2.50 F 2.80