Changchun Zhongyou Precision Zoom Optics

120mm diameter48× zoom1500mm short-wave infrared motorized zoom lens

Short-wave infrared military high zoom ultra-long focal length: 48×1500 mm zoom lens

Model: SK120/48X-1500SWIR

Adaptation sensor: IMX991

Spectral transmission range: 400nm-1700nm

Focal Length Range: f31mm - 1500mm

Image size: Φ16mm (adapted to 1" sensor)

Maximum resolution: 200 × ten thousand pixels

Unique focus mode: motorized focus/auto focus/fixed focus

Overall dimensions: length 503mm× width 175mm× height 139mm

Product details

120mm diameter 48× zoom 1500mm short-wave infrared motorized zoom lens technical specifications

I. Product Model

Model: SK120/48X-1500SWIR

Name: 120mm diameter 48× zoom 1500mm short-wave infrared motorized zoom lens

Data Release Date: July 1, 2026

II. Main Optical Specifications

Focal Length Range (mm): f31 - 1500

Zoom ratio: 48×

Image size: Φ16mm (adapted to 1" sensor)

Relative aperture: F6 (wide-angle end) - F12.5 (telephoto end)

Spectral response: 400nm - 1700nm

Adaptation sensor: IMX991

Spectral transmission range: 400nm-1700nm

III. Imaging performance indicators

Pixel definition: ≥3.1μm

Maximum resolution: 200 × ten thousand pixels (based on 1" image sensor format)

Optical axis stability: ≥5 pixels (calculated according to 4μm pixels)

IV. Control system

Zoom mode: motorized zoom/preset zoom

Zoom time: shortest focus to longest focus conversion time ≤ 16s (normal temperature)

Focus mode: motorized focus/auto focus/fixed focus

Focusing time: Auto focus mode: ≤3s; Fixed focus mode: No need to adjust the focus throughout the zoom process, the whole process is clear

Back focus adjustment function: ±0.5 mm precision adjustment

Numerical feedback mode: magnetically encoded numerical feedback

Feedback accuracy: ±5%

Power supply: DC12V,<10W

Data interface: RS422 full-duplex communication

V. Structural design

Mechanical interface: standard C interface (supports customized interface)

Overall dimensions (mm): including bracket: 503×175×139

Weight (kg): ≤6.6 (bare lens); ≤8.1 (including motor); ≤9.9 (including electronic control cabin)

VI. Environmental Specifications

Impact resistance standard: GJB150.18A-2009 standard

Anti-vibration standard: GJB150.16A-2009 standard

Working temperature: -40℃ - +60℃

VII. Optional Functions

Filter system: 2/3/4 filter electric switching

Technical support

Contact person: Dong You

Phone/WeChat: 13331697285

E-mail: 312282332@qq.com