Zone Tool

Name: Zone Tool
Rating: 3.33333 (3 reviews)

Photo & Video

View in App Store

Zone Tool

Photo & Video

3.3

3 ratings

Age Rating

Seller

Jouni Erola

View in App Store

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User Reviews for Zone Tool

Pretty good overall

If it is possible, adding the adjustment for shutter speed instead of only the aperture will be so much helpful.

Kihgfdsal, Feb 21, 2022

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.