4mm 90 degree FLIR Thermal Imaging Camera T/B Series Wide Angle Lens
Hikvision DS-2CD2143G2-IS/Black (4mm) 4MP AcuSense IP Network Black Dome Camera with 4mm Lens, 30m IR Range, IP67, IK10, WDR, H.265+ Compression Technology, BLC, HLC, 3D DNR, Built-in microSD, up to 512 GB
Should I Use a 2.8mm or 4.0mm Lens? | XLR Security