Will this CCTV lens cover the scene with enough planning detail?
Use the exact manufacturer horizontal angle when available. Otherwise use active sensor millimetres and focal length only as a thin-lens estimate. Coverage width and pixels per metre must both pass; a wide image alone is not enough.
Method
Coverage is 2 × distance × tan(HFOV/2); pixel density is horizontal pixels divided by physical scene width. The entered DORI value is a dated human-viewing planning reference, not a guarantee.
Important limitation
Lens distortion, crop, mounting angle, lighting, motion, compression, focus and analytics can change real results. Test the exact camera in live view and follow local privacy rules.