EFL focal length (mm):50
F/NO :2.8
Field of view:7.5°
Distortion:<-0.1%
Mount :M12*P0.5
TTL:30
Diameter:Φ7.6
Image size:1/2.5"
Product Overview
This precision-engineered M12 mount fixed focal lens (PN: JSD81057) is designed for 1/2.5-inch sensors, offering superior magnification and optical accuracy for long-range and high-precision imaging tasks. With a 35mm effective focal length (EFL) and F2.5 aperture, it provides an ultra-narrow 10° field of view, making it the perfect solution for capturing distant subjects with high fidelity or performing precise industrial measurements. Featuring 5MP resolution and an ultra-low distortion rating of <-0.1%, this lens eliminates geometric aberrations to deliver perfectly straight, true-to-life images essential for machine vision and recognition systems.
Key Features & Benefits
Crisp 5MP Resolution: Delivers sharp, high-definition imaging with excellent detail retention, ensuring that fine details on distant objects are captured clearly for analysis.
High Magnification 10° FOV: Provides an extremely narrow, telephoto field of view that maximizes pixel density on the target object, allowing for effective surveillance and inspection from a significant distance.
Ultra-Low Distortion (<-0.1%): Features an advanced optical design that virtually eliminates barrel and pincushion distortion, ensuring linear accuracy that is critical for metrology, gauging, and OCR applications.
Perfect Sensor Match: Engineered specifically for 1/2.5" sensors, featuring an image circle that fully utilizes the sensor's capabilities without vignetting, while also being compatible with smaller sensors like 1/2.7" and 1/3".
Compact & Robust Build: Standard M12*P0.5 thread and a Total Track Length (TTL) of 25mm allow for high-magnification imaging within a compact form factor, ideal for space-constrained industrial setups.
Targeted Imaging: The fixed focal length and narrow angle exclude peripheral distractions, focusing entirely on the subject of interest, such as specific components on a line or faces at a checkpoint.
Applications
License Plate Recognition (LPR/ANPR)
Long-Range Biometric Identification (Face/Iris)
Industrial Metrology & Precision Gauging
Optical Character Recognition (OCR) on Production Lines
Traffic Monitoring (Lane Specific)
Defect Detection (Electronics/Semiconductors)
Robot Vision Alignment
Specification
Parameter | Specification |
PN | JSD81057 |
Mount Type | M12 (S-Mount) * P0.5 |
Focal Length | 35mm |
Aperture | F2.5 |
Field of View (FOV) | 10° (Diagonal, for 1/2.5" Sensor) |
Resolution | True 5MP |
Compatible Sensor | 1/2.5” |
Image Circle | Φ7.5mm |
TTL (Total Track Length) | 25mm |
Back Focal Length | Contact for details |
Why Choose JSD Optoelectronics?
Shenzhen JSD Optoelectronics is a leading manufacturer of custom optical lenses, specializing in high-precision solutions since 2009. We offer:
1).ISO 9001 & IATF 16949 Certified Quality
2).Rapid Prototyping (15-day custom sample turnaround)
3).End-to-End Support from design to mass production
4).300+ Standard Designs for immediate sampling
If you would like to customize a lens, please send an email to: info@jsdoptical.com