Installing a new camera or adjusting an old one? These tips will help you get the best performance while avoiding common pitfalls.

An curved arrow pointing right. Mark Zuckerberg once posted ... there was tape over both the camera and the microphone to protect against hackers. Is Zuck overly paranoid, or is this actually ...

but also a camera pointing back at the user. That extra camera is aimed right at the eye. This is a gaze tracking system, a wearable robot that looks you in the eye and can tell you exactly what ...