Zone Exposure Calculator

Here is a natural, concise English version suitable for printing on a reference card: **How to Use** 1. **Measure the EV (Exposure Value).** 2. **Align the EV with your desired shutter speed (or aperture).** 3. **Read the corresponding aperture/shutter speed combinations.** 4. **Choose the combination that best suits your depth of field or shutter speed needs, then shoot.**