3.26 Black Light Lens

Product Brief Description

BOSHI Optical Technology designs and manufactures this high performance wide angle lens tailored for 1/2.7 sensor based imaging devices. As a 3.26mm fixed focal lens with a remarkable F1.0 large aperture, it excels at capturing clear and bright images even in dim ambient light, which greatly reduces motion blur and improves low light imaging quality for security and monitoring use. This M12 mount CCTV lens delivers a 129.5 degree diagonal field of view, enabling broad scene coverage with fewer blind spots for wide area surveillance. It comes with a built in 650nm IR cut filter to deliver accurate color rendering in visible light environments, ensuring true to life image output for daytime monitoring.

With a compact total length of 22.5mm, the lens fits easily into various compact camera housings and supports flexible installation in space constrained scenarios. It maintains stable optical performance across an operating temperature range from -20℃ to 70℃, adapting to both indoor and harsh outdoor environments. BOSHI Optical Technology applies strict quality control over every production link to ensure consistent performance and long service life. This F1.0 large aperture lens is a cost effective solution for modern CCTV systems, indoor monitoring, and general industrial imaging projects that demand wide coverage and reliable low light performance.

Detailed Product Description

Detailed Parameter

1. Core optical specifications: This 1/2.7 sensor lens features an effective focal length of 3.26mm with a tolerance of ±5%, and a maximum F number of 1.0 with ±5% tolerance, forming a large aperture optical system for high light intake. Its maximum image circle reaches 7.2mm in diameter, which fully covers the imaging area of 1/2.7 inch sensors without vignetting on the sensor edge. The optical back focal length is 4.55mm including 0.3mm IR glass and 0.4mm cover glass in air medium, and the mechanical back focal length is 4.53mm, matching standard M12 mount camera assemblies perfectly.

2. Field of view and optical distortion: On 1/2.7 inch sensors, the lens provides a 129.5 degree diagonal field of view, 109.4 degree horizontal field of view and 58.2 degree vertical field of view, realizing ultra wide scene capture in a compact body. Its optical distortion is less than -52.6%, which is a typical design trade off of wide angle optics to achieve such broad coverage. The chief ray angle is controlled at 11.5 degrees, which ensures good matching with mainstream image sensors and reduces shading and color shift at the image edge.

3. Structure and environmental parameters: The lens has a total length of 22.5±0.3mm with a standard M12 mount, compatible with most board cameras and compact imaging devices. Its holder is made of PC plus GF material for good structural strength and temperature resistance. The 50% cut off wavelength of the built in filter is 650±10nm, optimized for visible light imaging. It supports an operating temperature range from -20℃ to 70℃ and a storage temperature range from -40℃ to 85℃, adapting to various climatic conditions. BOSHI Optical Technology verifies every parameter through strict testing to ensure full compliance with design specifications.

Detailed Performance Advantages

1. Outstanding low light imaging capability: The F1.0 large aperture design allows the lens to transmit far more ambient light to the image sensor, which significantly improves image brightness and reduces noise under low light conditions. Compared with common F1.8 or F2.0 lenses, this 3.26mm fixed focal lens can capture clearer details in dim environments without extra infrared fill light, lowering the overall cost of complete surveillance systems.

2. Ultra wide angle coverage with uniform illumination: This 129.5 degree wide angle lens covers a much larger monitoring area than standard fixed focal lenses, reducing the number of cameras needed for a single scene and cutting total installation and equipment costs. Its relative illumination is higher than 42%, which means the edge area of the image maintains acceptable brightness instead of obvious dark corners, ensuring consistent image quality across the whole frame.

3. High reliability and universal compatibility: Built with durable materials and precision assembly, the lens from BOSHI Optical Technology maintains stable optical performance under extreme temperature changes and long term operation. The standard M12 mount ensures universal compatibility with most security cameras, industrial cameras and embedded imaging devices on the market. The built in 650nm IR cut filter delivers natural color reproduction for daytime monitoring, meeting the core requirements of conventional video surveillance systems.

4. Compact and cost effective design: With a total length of only 22.5mm, the lens fits into slim camera housings and small form factor devices, making it suitable for hidden or space limited installation scenarios. Its simple fixed focal structure brings high production yield and low maintenance cost, providing a cost efficient optical solution for mass market surveillance and imaging projects.

Detailed Application Fields

1. All day security surveillance: This 1/2.7 sensor lens is an ideal choice for CCTV monitoring systems, including residential communities, office buildings, parking lots, retail stores and public areas. Its wide angle coverage and F1.0 large aperture make it suitable for 24 hour monitoring with clear imaging in both daytime and low light nighttime environments.

2. Industrial vision and equipment monitoring: The lens can be applied in general industrial inspection, production line monitoring and automated imaging tasks. Its standard M12 mount and stable optical performance match various industrial cameras, supporting defect detection, equipment status monitoring and other machine vision work in factory environments.

3. Embedded smart device imaging: Thanks to its compact size and wide angle feature, this 3.26mm fixed focal lens fits into smart home devices, video doorbells, action cameras and other embedded imaging products. It provides broad scene capture for smart recognition and real time monitoring functions in consumer electronics.

4. Wide area indoor monitoring: For scenarios such as warehouse monitoring, lobby surveillance, elevator monitoring and open area observation, this wide angle surveillance lens delivers efficient large area coverage with fewer camera units. Its reliable environmental adaptability ensures long term stable operation in different indoor and mild outdoor settings.