價格：免費
更新日期：2019-12-01
檔案大小：344.1 KB
目前版本：1.1
版本需求：系統需求：iOS 12.2 或以後版本。相容裝置：iPhone、iPad、iPod touch。
支援語言：英語
With this tool you can calculate your exposure and needed adjustment for development. It uses zone system theory originally invented by Ansel Adams and Fred Archer.
First decide zone of your shadows and measure the shadows. Then device highlight zone and measure the highlights. Measure these with the film ISO you are going to use. You also need to decide shutter speed in beforehand.
The app calculates exposure aperture for you and also tells if you need to shorten (N+..) or expand (N-..) your development time.
You will get best results with a spot light meter but mobile apps will probably do fine.