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What Is Image Size Of A lens
There are several types of imaging sensors with different image size for CCTV cameras, the aspect ratio of CCTV camera are normally 4:3 (H:V) and 16:9 (H:V) ……
What Is The Focal Length Of A Camera Lens
Rays from infinite distance objects are condensed internally in the lens at a common point on the optical axis. The point at which the image sensor of the CCTV camera is positioned……
How To Distinguish Auto Iris，Manual Iris and P-Iris
There are four types of operation for lens iris, that are, (1) DC drive auto iris; (2) Video drive auto iris, (3) Manual iris, (4) P-iris. For DC drive type……
About Megapixel, Megapixel Lens for Megapixel Camera
To achieve the full resolution of a megapixel camera, it is essential to use a high quality megapixel lens. Overall image quality is greatly affected by……
About M.O.D, CS and C Mount, Depth of Field
The M.O.D. (minimum object distance) is the closest distance from the vertex of the front lens to the nearest object at which an image can be focused.The C-mount lens has……
How Non IR Len, IR Lens Work
Day & Night cameras are normally used in near-infrared (NIR) or infrared (IR) at night. If we use a Non IR lens with a day & night camera, sfp cage manufacturer the image will be……
About Angle of View, Aperture (F No.)
The angle formed by the 2 line from the secondary principal point to the edges or corners of image sensor is called the angle of view. Theoretically, the focal……
How to Choose the Right CCTV Lens Based on the Chip
In the realm of surveillance systems, selecting the appropriate lens for your CCTV (Closed-Circuit Television) camera is crucial for achieving optimal performance. With the……