Outdoor environments demand optical solutions that are as resilient as they are precise. For industries ranging from surveillance to industrial automation, waterproof S-Mount lenses have emerged as a critical component, ensuring reliable performance even in harsh weather conditions. TOWIN, a professional optical lenses supplier based in China, specializes in designing and manufacturing high-quality S-Mount lenses tailored for outdoor use.
Waterproof S-Mount Lenses: The Ultimate Outdoor Solution
S-Mount lenses, also known as M12 lenses, are compact optical systems with an M12X0.5 thread that allows direct mounting onto PCB cameras. Their miniature size and versatility make them ideal for applications where space is limited, yet durability is non-negotiable. TOWIN’s waterproof S-Mount lenses are engineered to withstand moisture, dust, and temperature fluctuations, making them perfect for outdoor surveillance, traffic monitoring, and industrial automation.
Key Product Parameters
- Mount Type: Standard S-Mount (M12X0.5 thread)
- Waterproof Rating: IP67 or higher (fully protected against dust and immersion in water up to 1 meter for 30 minutes)
- Focal Length: Fixed or vari-focal options (e.g., 2.8mm, 3.6mm, 6mm)
- Aperture: Manual iris, DC auto iris, or P-iris for precise light control
- Image Circle: Covers sensors up to 1/2.7” or larger, depending on the model
- Distortion: Low distortion designs (<1%) for accurate imaging
- IR Corrected: Multi-coating technology ensures clarity in day/night applications
- Operating Temperature: -20°C to 60°C (extended range available upon request)

IP67 Automotive S-Mount lens
Why Choose TOWIN’s Waterproof S-Mount Lenses?
- All-in-One Versatility: TOWIN offers a wide range of S-Mount lenses, including low distortion, fisheye, wide-angle, and automotive-grade options. Whether you need a lens for a traffic camera or a drone, TOWIN has you covered.
- Fast Delivery: With a streamlined manufacturing process in China, TOWIN ensures quick turnaround times, reducing downtime for your projects.
- Customization: Need a lens with specific parameters? TOWIN’s design team can create bespoke solutions tailored to your requirements.
- Durability: Built to last, TOWIN’s lenses are rigorously tested for waterproofing, shock resistance, and thermal stability.
Applications of Waterproof S-Mount Lenses
- Outdoor Surveillance: TOWIN’s lenses are widely used in CCTV and IP cameras for video surveillance, thanks to their IR correction and low-light sensitivity.
- Intelligent Traffic Systems (ITS): Traffic monitoring cameras rely on waterproof S-Mount lenses to capture clear images in rain, fog, or snow.
- Industrial Automation: Machine vision cameras in factories use these lenses for quality control and process optimization, even in dusty or humid environments.
- Drones and UAVs: Compact and lightweight, TOWIN’s S-Mount lenses are ideal for aerial photography and mapping applications.
TOWIN’s Commitment to Quality
As a professional optical lenses supplier, TOWIN prioritizes innovation and customer satisfaction. Their lenses undergo strict quality control, including:
- Precision Machining: High-grade materials ensure optical clarity and longevity.
- Multi-Coating Technology: Reduces glare and improves light transmission.
- Environmental Testing: Simulated outdoor conditions verify performance under extreme temperatures and humidity.

IP67 6mm Waterproof Automotive Wide-Angle Lenses
Conclusion
When it comes to waterproof S-Mount lenses for outdoor use, TOWIN combines technical expertise with cost-effective solutions. Their ability to deliver customized lenses quickly, coupled with a commitment to durability, makes them a top choice for industries worldwide.