LightGuide LightMeter

This application is a handy tool which supposed to make it easier to use old cameras that did not have built-in light meter.

Usage
1, Select the ISO value, and set it to a desired value with the +,- buttons or the slider.
2, Select either the aperture or the shutter speed, and set it, the same way as with the ISO.
3, Metering is continuously happening, unless you press the AE LOCK button, which will hold the actual measured value, but you will be still able to adjust the values manually.

This application has been tested on several devices, but there is no guarantee that it will work with every device on the market. If you experience any unexpected behavior during the usage of this app or you have further improvement ideas please do not hesitate to contact me.

Tested devices
Nexus 7, Nexus 4, ZTE Blade

Unsupported devices
LG-P970 (Paranoid ROM)