Whether you are trying to read a menu in a dark restaurant, the warning label on your medicine or the fine print on a contract you possibly should not be signing a magnifying glass can come in very handy. One with a light is even better. Good news! That phone in your pocket is filled with handy tools, including a magnifying glass. No more squinting! Your phone’s magnifying glass lets you see the small stuff, anytime, anywhere. The iPhone has a useful magnifying glass feature that uses the camera. You must turn this feature on in order to use it. To turn on the magnifying glass on your iPhone, go to: Settings, then General, then Accessibility, then Magnifier. Turn it to On.