CCTV Lens Calculator

Calculate CCTV lens requirements and determine pixel density with this easy to use tool.

• Simple and easy to use.
• This generic CCTV Lens Calculator calculates the lens required for a CCTV camera. 
• Now with scene calculation based on focal length.
• Calculate using feet or meters.
• Enter distance from the scene, horizontal distance of scene and height of the camera, then click 'calculate'. 
• Results show lens required, angle of view and pixels per meter(feet). 
• Indicates if the object or person can be: "Identified", "Recognised" or "Detected".
• The new scene calculation allows you to calculate the scene dimensions, based on a focal length value.
• Calculate horizontal distance of a scene based on focal length and distance between cameras and subject.
• Calculate distance between camera and subject based on focal length and horizontal distance of scene.
• Scene calculation allows you enter vari-focal lens min/max focal length and use a slider to easily switch between values.