Exposure Wheel

Exposure Wheel is an application for photographers. It measures the amount of light using Android cell phone light meter.
To use the Exposure Wheel, follow these steps:
- Align the EV marker on the inner wheel with the appropriate EV value on the outer wheel (red numbers).
- Offset the inner wheel to the appropriate ISO setting for any other setting than ISO 100.
- Choose a combination of f-stop and shutter speed from the left side of the Exposure Wheel.