CCTV Lens Calculator: Focal Length & Field of View

Key Features

• CCTV Design Lens Calculator is an easy free tool for CCTV design.
• It offers standard functions of Lens Calculators - calculation of the field-of-view size depending on the distance and the lens focal length as well as several new, more effective tools.

Technical Specifications

• **Publisher:** Cctvcad.com
• **License:** Freeware
• **Operating System:** Windows 7, Windows 8, Windows 10, Windows 11
• **Last Updated:** October 15, 2025
• **Category:** Audio And Video / Video Tools