Security Camera Field of View (FOV) Tool - Tools - Resources
The lens calculator online helps you set optimal CCTV camera settings #CCTV #Security #Cameras « Adafruit Industries – Makers, hackers, artists, designers and engineers!
RECOMMENDED: Excellent freeware lens calculator! - Installation Help and Accessories - CCTVForum.com
CCTV Camera Lens Calculations
CCTV Lens Calculator Available in Android Mobile App