How do you calculate Field of View (FOV)? A simplified calculation for 1/4-inch CCTV lens can be made using the following formula: W (horizontal width) = (distance) * 3.2 mm / (Lens Focal Length) where 3.2 mm is the horizontal size of 1/4″ CCTV sensor (4.8 mm for 1/3″ sensor).

2025年3月7日 · A CCTV camera field of view calculator is a tool that computes the observable area (horizontal, vertical, or diagonal) based on the camera’s lens specifications and mounting position. It factors in focal length, sensor dimensions, and camera-to-subject distance to visualize coverage zones, helping users avoid blind spots and select ...

2022年10月24日 · FOV的全称是Field of View (视场角），它表示相机或者人眼可以接收或者显示的影像的角度范围。 由于相机的成像原理，一般都会有 视场角 的限制。 如下图所示当相机的CCD或CMOS传感器的成像平面W一定时， FOV 由焦距f决定，当焦距越大时，看的越远 但是 …

Field Of View (FOV)-The width, height or diameter of a scene to be monitored. Usually determined by the focal length of a lens, the sensor format and the distance to the objects. See: Camera Field of View Simulator, Camera view angle.

1. To get the lens you need enter the target distance of the object, and field of view H x V. 2. To calculate the field of view you can expect with a given lens enter the target distance of the object, and focal length of the lens.

2023年8月31日 · By entering various parameters such as distance to the object and field of view, this calculator provides the optimal lens focal length needed for your specific application. The CCTV lens calculator operates by taking into account the essential variables—distance to the object, desired FOV, and sensor size—to compute the necessary lens size.

2025年1月25日 · What Is Field of View (FOV) in CCTV Cameras? The Field of View (FOV) refers to the area captured by the CCTV camera’s lens, measured in degrees. Cameras with a wide FOV cover larger areas, while those with a narrow FOV focus on smaller, specific zones.

2025年3月11日 · To determine a security camera's field of view (FOV), consider its focal length. Cameras with larger lenses have narrower FOVs and shorter viewing distances. Check the camera's specifications for focal length, then use a FOV calculator or the formula: FOV = 2 * arctan(sensor size / (2 * focal length)).

2024年1月1日 · FOV is measured in degrees and tells you how much area a camera can capture. Wide-angle lenses cover more area but with less detail. Telephoto lenses focus on distant objects and bring them closer but capture less area overall. Matching the right FOV with your surveillance needs is key to effective security.

Q. 如何正確地選擇適合的CCTV？ 答： FOV = sensor size/倍率. Pixel size = sensor size/解析度. 1 Pixel精度= FOV H(or V)/解析度or 1 Pixel精度= Pixel /倍率. 範例： 解析度: 659x494, sensor size: 4.88x3.66mm, 倍率: 2X. FOV = sensor size /倍率= 4.88/2 = 2.44. Pixel size = sensor size /解析度= 4.88/659 = 0.0074mm ...