CCTV - Closed Circuit Television Practice Test
CCTV - Closed Circuit Television CCTV CCTV Camera Technology and Optics 2
What is infrared (IR) cut filter used for in a day/night CCTV camera?
Select your answer
A
To block UV rays during daytime recording
B
To remove IR light during daytime to improve color accuracy
C
To amplify IR illumination at night
D
To prevent lens fogging in cold weather
Hint
