Re: Blackberry PRIV (hidden) infra-red camera.
I checked the sensor out on the Passport and the Classic.
The Classic sensor is able to detect 5cm and less, the Passport sensor can measure 25cm and less.
If you go into a dark environment, the light of the sensor is visible in the dark red.
To see the sensor in action, there are several android apks availible, i used one called "sensor box for android" - nice toy.