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25mm 4/3" Megapixel Lens

The Kowa LM25XC 4/3" megapixel lens provides a large image format of Φ23mm(C-mount). These high precision aspherical lenses greatly reduce distortion and produces a high definition picture. LM25XC lenses maintain megapixel resolution thoughout the entire image even if the iris is fully open. In addition, Kowa's wide-band multi-coating effectively reduces glare and refraction.

Floating Mechanism Design
Kowa's floating mechanism design virtually eliminates optical abberations from close distance to infinity

XD Extra Low Dispersion
Kowa's wide-band multi-coating effectively reduces glare and refraction

Low Distortion
High precision aspherical lens greatly reduces distortion and produces a high definition picture

Large Image of Φ23mm (C-mount)

Consistent Megapixel Resolution
Megapixel resolution is maintained throughout the entire image, even if the iris is fully opened

Floating Mechanism Design
Kowa's floating mechanism design virtually eliminates optical abberations from close distance to infinity

XD Extra Low Dispersion
Kowa's wide-band multi-coating effectively reduces glare and refraction

Low Distortion
High precision aspherical lens greatly reduces distortion and produces a high definition picture

Large Image of Φ23mm (C-mount)


Consistent Megapixel Resolution
Megapixel resolution is maintained throughout the entire image, even if the iris is fully opened

Specifications for the LM25XC
Focal Length 25mm
Focal Length Sort Order 025
Lens Type Fixed Focal Length
Image Size 4/3" (18.4 x 13.8 x 23mm)
Iris Range (F-Stop) F2.0 - 16
Angle of View 2/3" (Hor. x Ver. x Dia.) 20.1 x 15.2 x 25.0°
Angle of View 1" (Hor. x Ver. x Dia.) 28.9 x 21.8 x 35.9°
Angle of View 4/3" (Hor. x Ver. x Dia.) 40.9 x 31.3 x 50.2°
TV Distortion -0.57%
Minimum Object Focus Distance (2/3") (Hor. x Ver. x Dia.) 59.0 x 44.2 x 73.9mm
Minimum Object Focus Distance (1") (Hor. x Ver. x Dia.) 86.1 x 64.4 x 108.1mm
Minimum Object Focus Distance (4/3") (Hor. x Ver. x Dia.) 124.8 x 93.0 x 157.3mm
Focusing Range 0.15m
Flange Back 17.526mm in air
Back Focus 24.3mm in air
Filter Thread Size M40.5x0.5
Front/Rear Effective Diameter Front Φ31.4mm / Rear Φ18.2mm
Mount C-mount
Exit Pupil Location -46.8mm
Temperature Range -10°C ~ +50°C
Storage Temperature Range -20°C ~ +60°C
Resolution: Center/Corner Center 160lp/mm / Corner 80lp/mm
Weight 255g
lm25xc-avs.pdfSpec Sheet


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Prices and specifications subject to change without notice.