Kowa LM25JS5MA | 1" 25mm F0.85 Low Light Lens, 5MP, CS-Mount, Manual Focus, Auto Iris, Broadband 400–1000nm Coating

Quick Overview
25mm F0.85 fixed focal CS-mount lens for 1" sensors. Auto iris (DC), manual focus, 5MP resolution, 400–1000nm broadband coated, M77x0.75 filter thread.

The Kowa LM25JS5MA is a high-speed, F0.85 low light fixed focal lens engineered for CS-mount cameras using 1" format sensors up to 5 megapixel resolution. It delivers outstanding performance in low-light environments thanks to its ultra-fast F0.85 aperture and broadband anti-reflective coating across the 400nm–1000nm spectrum, covering both visible and near-infrared wavelengths. Ideal for security, ITS, and border surveillance systems, this lens supports crisp, high-contrast imaging even with small pixel pitch sensors and limited ambient light.

The lens features a manual focus mechanism, DC auto iris (AI-DC) for dynamic exposure control, and a rugged design supporting -10°C to +50°C operation. Its 25mm focal length, M77 x 0.75mm filter thread, and 3m MOD offer excellent flexibility in mid-to-long range observation setups. With dimensions of 78.5 x 117mm, 29° horizontal field of view, and a weight of 800g, the LM25JS5MA is optimized for high-precision applications requiring superior optical clarity and stability across a broad wavelength range.

Features:

  • 25mm fixed focal length
  • Ultra-fast F0.85 aperture for extreme low-light sensitivity
  • 5MP resolution support
  • Compatible with 1" image sensors
  • CS-mount for compact camera integration
  • DC auto iris (AI-DC) for automatic exposure control
  • Manual focus adjustment
  • M77 x 0.75mm filter thread
  • Broadband coating for 400nm–1000nm wavelength range
  • Supports visible to NIR imaging
  • Rugged metal housing
  • Operating temperature: -10°C to +50°C
  • Includes 25cm cable with 4-pin plug

Applications:

  • Border control systems
  • ITS and traffic monitoring
  • CCTV and public safety
  • Industrial automation
  • Low-light machine vision
  • Surveillance in variable lighting environments
  • Near-infrared imaging applications
ModelKowa LM25JS5MA
Sensor Format1"
Focal Length25mm
Aperture RangeF0.85 – F360
Aperture ControlDC Auto Iris (AI-DC)
Focus ControlManual
Mount TypeCS-Mount
Resolution5 Megapixel
Filter ThreadM77 x 0.75mm
Minimum Object Distance (MOD)3 meters
Horizontal Field of View29°
Wavelength Range400nm – 1000nm (Broadband Coating)
Dimensions (mm)78.5 x 117
Weight800g
Operating Temperature-10°C to +50°C
Cable & Connector25cm cable with 4-pin plug
Application FieldsBorder Control, CCTV/Security, ITS/Traffic Control