- Datasheets for security cameras typically list a mimimum illumination lux value, but typically don't mention the shutter speed needed for that lux value, which could be as long as one or two seconds.
- Datasheets for IR Illuminators typically list a coverage angle and distance, but typically don't mention a lux value at that maximum distance.
Suppose you want to set the camera's maximum exposure time to 1/25 to minimize motion blur and you want sufficient IR Illumination to 40 feet. I'm guessing you have to select an IR illuminator more or less based on experience because neither the camera nor illuminator datasheets provide sufficient information to calculate the illuminator power requirements. Am I missing something?
Best, Christopher