cctv field of view calculator

https://jvsgonlinelab.lumenforgex.com/posts/planning-a-cctv-system-with-jvsg-online-a-practical-guide

You point a camera at a warehouse corner but can't tell if it'll catch the loading dock until you install it. That's where a CCTV field of view calculator helps—punch in lens specs, sensor size, and mounting height, then see a simulated coverage map. It saves you climbing ladders twice or guessing wrong on zoom.