Canon – AF Mode (One Shot, AI Focus & AI Servo)

The EOS 60D (my camera at the moment) offers a range of three Auto focus (AF) modes (One Shot, AI Focus and AI Servo).

One shot — for still subjects
AI Focus — automatic switching of AF mode
AI Servoread more

Bystander CPR

“Doctors have traditionally recommended mouth-to-mouth rescue breathing in addition to chest compressions during cardiopulmonary resuscitation (CPR), but recent studies suggest that doesn’t help most patients.”

“People used to be told to give two breaths for every 15 chest compressions. That … read more