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Kowa LLM50-IR-P Lens

Kowa Lens

Product Family

Large Format NIR

Part Number




Sensor Size


Lens Type


Focal Length

50 mm

Salient Features

Kowa is proud to introduce its large format, IR corrected lens with broadband coating and low distortion. The LM50-IR maintains its superior performance from visible to near infrared wavelengths (NIR) without any focus shift. The LM50-IR is available in F-mount or P-mount (M42x1.0). In addition, Kowa now offers the LM50-IR-P lens which provides all of the same outstanding capabilities as the LM50-IR, but now provides M42-mount capabilities.   *Custom Lens – Made to Order*


Focal Length (mm) 50
Lens Type Fixed
Image Size (mm) 4/3 ” (18.4 x 13 x 8.23mm)
Iris Range (F-stop) F1.9 ~ F16
Focusing Range (m) 0.5 m
Iris Control Manual
Focus Control Manual
Mount P-mount
Filter Thread Size (mm) M52 x P0.75
TV Distortion (%) at ?43.3 -0.54
TV Distortion (%) at ?22.5 (1.2″ Format) -0.18
TV Distortion (%) at ?16 (1″ Format) -0.12
Back Focal Length in Air (mm) 34.6
Mechanical Back Focal Length in Air (mm) 34.1
Flange Back (F-mount) 46.5mm
Flange Back (P-mount, M42x1) 45.5mm
IR Corrected Design 400-1000nm
Size (mm) ?58.5 x 105.2
Weight (g) 600
Temperature Range (°C) -10 ~ +45

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