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140 degree wide angle, With the effort to keep pace with world's trend, we are going to always endeavor to meet customers' demands. If you want develop any other new products and solutions, we can customize them in your case. If you feel interest in any of our goods or want develop new merchandise, remember to feel free to contact us. We're looking forward to forming successful business relationship with customers all over the world.

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  • 25mm uncooled infrared lens

    25mm uncooled infrared lens

    This F1.0 25mm long wave infrared lens is developed and supplied by ShangHai SILK Optical Technology CO., LTD. As a high-performance thermal imaging lens working within 8~12μm wavelength range, this LWIR optics is optimized for 640×512, 12μm lens thermal detectors. Featuring a large aperture of F1.0, the infrared lens delivers outstanding light gathering capacity, making it ideal for low-visibility and low-temperature monitoring scenarios. The M22×0.5 mount ensures convenient assembly onto matched thermal camera hardware. With front element IP67 ingress protection rating, the thermal camera lens supports reliable outdoor deployment. This 25mm F1.0 lens maintains high transmittance above 86% and relative illumination over 97%, together with distortion controlled below 2%. It supports focus adjustment from 2 meters to infinity, and operates steadily between -40℃ and +80℃. ShangHai SLIK Optical Technology CO., LTD strictly calibrates every infrared lens to guarantee consistent imaging quality for industrial, security and surveillance thermal devices.
  • Standard M12 2.8mm 1/2.7

    Standard M12 2.8mm 1/2.7" F2.4 3MP Security CCTV Lens

    Standard M12 2.8mm 1/2.7" F2.4 3MP Security CCTV Lens, and all products have been tested by MTF instruments, resulting in higher consistency compared to products from other suppliers. You can rest assured to purchase standard M12 lenses from our factory.
  • Standard M12 16mm 1/2.7

    Standard M12 16mm 1/2.7" F2.0 5MP Drone Camera Lens

    Standard M12 16mm 1/2.7" F2.0 5MP Drone Camera Lens, and all products have been tested by MTF instruments, resulting in higher consistency compared to products from other suppliers. You can rest assured to purchase standard M12 lenses from our factory.
  • AIoT F1.6 4.0mm 1/2.7

    AIoT F1.6 4.0mm 1/2.7" M12 FPV Drone Camera Lens

    F1.6 4.0mm 1/2.7" M12 FPV Drone Camera Lens, and all products have been tested by MTF instruments, resulting in higher consistency compared to products from other suppliers. You can rest assured to purchase standard M12 lenses from our factory.
  • AIoT M12 2.85mm 1/2.9

    AIoT M12 2.85mm 1/2.9" F2.3 FPV Camera Lens PL071

    M12 2.85mm 1/2.9" F2.3 Security Lens PL071, and all products have been tested by MTF instruments, resulting in higher consistency compared to products from other suppliers. You can rest assured to purchase standard M12 lenses from our factory.
  • 2.18mm wide angle lens

    2.18mm wide angle lens

    This high-performance M12 fisheye lens is engineered by ShangHai SILK Optical Technology CO., LTD to deliver seamless panoramic monitoring with an ultra wide angle field of view. Designed for 1/2.7” image sensors, this ultra wide angle lens adopts a mature 2G3P+IR optical structure, balancing compact size and all-day imaging capacity. It features a 2.18mm effective focal length, F2.4 fixed aperture and 185° diagonal field of view, enabling single-camera wide-area coverage without stitching multiple cameras. As a reliable IR corrected lens, it maintains consistent image quality under visible and infrared light for day-night surveillance scenarios. The total track length is controlled at 14.5±0.2mm, supporting miniaturized camera module integration. Strict optical calibration delivers 46.0% relative illumination and controlled CRA under 20.43°, greatly reducing vignetting and matching mainstream CMOS sensors. ShangHai SLIK Optical Technology CO., LTD provides stable mass production and customizable optical solutions for global clients using this mature panoramic lens platform.
  • Related Blog
  • Reviews

  • Eyes in the Sky: The Technical Evolution and Optical Trade-offs of Drone Lens Systems

    In the history of visual recording, every elevation in perspective has brought a leap in human cognition. From the early days of strapping heavy film cameras to hot air balloons or carrier pigeons to today’s consumer drones weaving through urban jungles, the role of optical systems has evolved from a simple "recorder" to a complex "decision-support terminal." When we discuss drone lenses, we are essentially talking about an extreme game of trade-offs limited by physics, aerodynamics, and semiconductor manufacturing.

  • shanghai silk Optical invites you to attend the 25th China International Optoelectronics Expo

    shanghai silk Optical invites you to attend the 25th China International Optoelectronics Expo

  • Why an F1.0 Lens is the Secret to Full-Color Night Surveillance | Shanghai Silk Optical

    Let’s be honest: nobody likes reviewing security footage that looks like a 1920s silent movie shot in a blizzard. For years, the industry standard for low-light surveillance was Infrared (IR) lighting. It illuminated the dark, but it stripped away all the color, leaving you with grainy, black-and-white images where a red getaway car looks exactly like a blue one. Today, the market demands "full-color night vision." But achieving this without blasting a blinding white LED spotlight into the street requires a specific hardware upgrade. It’s not just about a better software algorithm; it’s about physics. To achieve true, noise-free color footage in near-darkness, your camera needs an F1.0 large aperture lens. Here is a deep dive into why F1.0 is the absolute threshold for modern security cameras, and why the materials inside that lens matter just as much as the numbers on the outside.

  • Breakthroughs in Low-Light Security Lens Technology: Black Light F1.0 vs Infrared Illumination

    In the shadowed corners of cities—alleyways, underground garages, and remote rural areas—criminals often exploit the cover of night to carry out illegal activities. Statistics show that nearly 70% of crimes occur after dark. Without effective nighttime monitoring, roads, warehouses, and open fields become vulnerable zones that threaten both urban and community safety. To meet this urgent need, security camera lens technology has made remarkable strides in low-light performance. Two leading solutions have emerged: Black Light F1.0 large-aperture imaging and infrared illumination. These innovations do far more than just let cameras “see” in the dark—they enable systems to see clearly, recognize details, and even understand what they’re seeing, thanks to deep integration with artificial intelligence.

  • Shanghai Silk Optical in the Optical Manufacturing Vocational Skills Competition

    ​Congratulations to our employee Xu Can for participating in the "Tiangong Cup" Optoelectronic Manufacturing Industry Employee Vocational Skills Competition in Shangrao City on September 28, 2024, Obtained third place in the optical lens appearance inspection project.

  • MOTION DV LENS

    Motion DV lenses are camera accessory devices specifically designed for motion scenes. They usually have features such as anti-shake, wide-angle, and high pixel count, and are suitable for recording during outdoor activities like cycling, skiing, and fishing.

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