Light Meter

This app is using the built-in light meter of the android device to calculate aperture, time and ISO values. You can set two of these values manually and the third one is calculated to make a correct exposure. There are three measure modes: 2s, 10s and continuous measurement. Since the light meter is usually on the front of the devices (next to the front facing camera) the 2s and 10s measurements may come handy. They take the light value 2s or 10s after the measure button is pressed, so you have time to turn the light sensor towards the scene. In 2s and 10s mode there is also an option to calculate an average light value.