Infrared LEDs - casting light when another camera is viewed live?

[chicane]

Hi All,

I've recently noticed when checking a live view on a specific camera, I can see IR cast from two other cameras with overlapping field of view. This happens in two scenarios at the front and back of my house.

Why is this happening? are they being triggered on by the live view activity? or is it due to motion sensitivity being high and motion being detected but not enough to record a video? 

I wonder if this is a new change to improve detection? batteries are going flatter quicker now. 

[StephenB]

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@chicane wrote:

I've recently noticed when checking a live view on a specific camera, I can see IR cast from two other cameras with overlapping field of view. This happens in two scenarios at the front and back of my house.

How far away is the live view camera from the others?

Are you turning on the live view camera's spotlight?

Are the other cameras set to turn on their spotlights are night?  Or are they instead using IR?

I'm thinking that is is possible that illumination from the liveview camera is sometimes triggering the PIR sensors on the other camera. Just a thought.