CCTV Security Camera Lens Guide - CLEAR IT SECURITY
What's the difference between 2.8mm & 3.6mm lenses?
Angle of view - Wikipedia
Amazon.com : Amcrest Full HD 1080P 1920TVL Bullet Outdoor Security Camera (Quadbrid 4in1 HD-CVI/TVI/AHD/Analog), 2MP 1920x1080, 98ft Night Vision, Metal Housing, 3.6mm Lens 90° Viewing Angle, Black (AMC1081BC36-B) : Electronics
What's the difference between 2.8mm & 3.6mm lenses?
Leon Kapp on LinkedIn: #security #cctv #dahua #dahuatechnology #technology #southafrica
CCTV Field of View Calculation
Which Lens Should I Select
Should I Use a 2.8mm or 4.0mm Lens? | XLR Security
A Quick Guide to Security Camera Lens Types - Jim's Security