Q&A about Auto Iris Lenses
How many types of auto iris lenses are available?
There are generally two types of auto iris lenses available: DC auto iris lenses and Video Drive auto iris lenses.
What is the difference between DC auto iris lenses and Video Drive auto iris lenses?
DC auto iris lenses are controlled by direct current, while Video Drive auto iris lenses are controlled by video signal. DC auto iris lenses require a separate power source to operate the iris, which makes them more suitable for analog CCTV systems. Video Drive auto iris lenses, on the other hand, receive power and control signals through the video cable, making them more convenient for modern digital surveillance systems.
How do auto iris lenses work?
Auto iris lenses adjust the size of the aperture based on the amount of light available. When there is a lot of light, the iris closes down to reduce the amount of light entering the camera lens. When there is low light, the iris opens up to allow more light in. This automatic adjustment helps maintain optimal image quality in various lighting conditions.
Where are auto iris lenses commonly used?
Auto iris lenses are commonly used in surveillance systems where lighting conditions can vary, such as outdoor locations, parking lots, and entrances. They help improve the overall image quality and ensure consistent surveillance coverage throughout the day and night.
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