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Zone Tool

With this tool you can calculate your exposure and needed adjustment for development

With this tool you can calculate your exposure and needed adjustment for development

Zone Tool

by Jouni Erola
Zone Tool

What is it about?

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.

Zone Tool

App Details

Version
1.1
Rating
NA
Size
0Mb
Genre
Photo & Video Utilities
Last updated
December 1, 2019
Release date
November 29, 2019
More info

App Store Description

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.

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