China 4mm image circle Manufacturers, Suppliers, Factory

In the past few years, our firm absorbed and digested highly developed technologies equally at home and abroad. Meanwhile, our business staffs a group of experts devoted on the growth of 4mm image circle,24mm focal length,F/4.5 aperture,1/2.5" sensor,M9 mount, We warmly welcome all intrigued clients to call us for additional details.
4mm image circle, Our product quality is one of the major concerns and has been produced to meet the customer's standards. "Customer services and relationship" is another important area which we understand good communication and relationships with our customers is the most significant power to run it as a long term business.

Hot Products

  • 2.85mm 1/2.9

    2.85mm 1/2.9" M12 F2.3 Security Lens PL071

    2.85mm 1/2.9" M12 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.
  • 3.05mm Tapered Cone Lens

    3.05mm Tapered Cone Lens

    This compact machine vision lens is manufactured by ShangHai SILK Optical Technology CO., LTD, optimized for 1/4” sensor with 2592*1944 resolution. Built with reliable optical layout, this mini board lens delivers steady imaging performance with 3.05mm focal length and F5.0 aperture. It supports a 4.8mm image circle and 72‑degree diagonal FOV, meeting the wide‑view requirement of compact imaging modules. The low distortion lens design keeps TV distortion below 1.5%, together with 650nm IRCF wavelength to filter unwanted infrared interference. Ultra‑short TTL at 3.6mm makes it fit for space‑constrained device integration. ShangHai SILK Optical Technology CO., LTD carries out strict optical inspection for each unit, ensuring consistent batch quality for mass‑production projects. This cost‑effective M5.5 mount optical component is ideal for small‑size embedded camera systems across multiple consumer and industrial scenarios.
  • 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 2.85mm 1/2.9

    Standard M12 2.85mm 1/2.9" F2.3 Security CCTV Lens PL071

    Standard M12 2.85mm 1/2.9" F2.3 Security CCTV 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.
  • Distortionless Optical M12 Lens

    Distortionless Optical M12 Lens

    Distortionless Optical M12 Lens is 4.555mm distortion free 16 million pixel,Distortionless Optical M12 Lens Is match to 1/2.3 ", Distortionless Optical M12 Lens is scanning instrument MT9J003 special lens M12 mount.
  • 50mm Thermal Imaging Lens

    50mm Thermal Imaging Lens

    This high‑performance thermal imaging lens is developed and manufactured by ShangHai SILK Optical Technology CO., LTD, tailored for uncooled long‑wave infrared thermal imaging devices. Featuring 50mm focal length and bright F1.0 large aperture, this infrared lens delivers outstanding light-gathering capability for low‑light thermal detection scenarios. It matches 640×512,12μm infrared detectors, working within classic 8‑12μm long‑wave infrared spectral band.

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