Changchun Zhongyou Precision Zoom Optics

SK50/30-240NIR NIR 8–240 mm Motorized Zoom Lens — 50 mm Clear Aperture

50 mm clear-aperture series, 30× zoom, 240 mm motorized zoom lens
Lightweight NIR design for defense applications:30×240mm zoom lens

Model Number:             SK50/30X-240NIR   

Spectral transmission peak:700nm-1100nm

Focal Length Range:  f8mm - 240mm

Image Format: Φ  7.1mm

Maximum Resolution: 8 MP

Focus mode: Parfocal design

Dimensions:    L 179mm× W  93mm× H  91mm

Product details

Main features and advantages

Defense applications · Research applications · Lightweight · Compact · 4K resolution · 2K resolution · Broad spectrum · No color difference · Multispectral · Impact resistance · Parfocal design · High optical-axis consistency · Standardization · Product family standardization · Digital control · Support customization · Manufactured in China · Mature and reliable

I. Product Model

SK50/30-240NIR   

II. Main Optical Specifications

Focal Length Range: f8–240 mm

Zoom ratio: 30×

Image size: φ7.1mm (adapted to 1/2.6″ sensor)

Relative aperture: F2.8 (wide-angle end) – F5.1 (telephoto end)

Spectral transmission peak: 700nm-1100nm

III. Imaging performance indicators

Pixel definition: ≥1.35μm

Maximum resolution: 8 MP (based on 1/2.6″ image sensor format)

Optical-axis stability: ≥3 pixels (based on 4μm pixel pitch)

IV. Control system

Zoom mode: motorized zoom/preset zoom

Focus mode: motorized focus/auto focus/fixed focus

Back-focus adjustment: ±0.5 mm

Position feedback: magnetic encoder

Feedback accuracy: ±5%

Power supply: DC12V,<10W

V. Structural design

Mechanical interface: standard C-mount (custom interfaces available)

Overall dimensions: length 179mm× width 93mm× height 91mm

Overall machine weight: > 1.25kg (including drive mechanism)

VI. Environmental Specifications

Shock resistance: GJB150.18A-2009

Vibration resistance: GJB150.16A-2009

Operating temperature: -45°C – +60°C

VII. Optional Functions

Filter system: motorized 2/3/4-position switching

Control interface: RS422

Technical support: Dong You Telephone/WeChat 13331697285 Email: xianglongduan1998@gmail.com   

Data Release Date: July 1, 2026