iPhone Screenshots


Zone System Companion is powerful tool which supports the use of the Zone System in the creation of fine art photographs. It can be used by both experienced practitioners and those new to the Zone System. Zone System Companion exploits the features offered on Apple's iOS devices to allow the photographer to easily record required information. It simplifies the record keeping aspect of the photographic process from previsualization through to the final print.

With Zone System Companion, the photographer can create a detailed record of each photograph taken. It offers easy-to-use data entry, voice annotation, geotagging and secondary photo documentation.

Zone System Companion simplifies entry of the traditional information about camera, film, exposure and development. Default settings streamline mundane entry tasks, enabling the photographer to concentrate on making art. By offering voice and image annotation, a richer reconstruction of the vital moment can be realized.

A complete record of each photograph can be exported to a computer through iTunes. The photographer can enter the darkroom with a heightened sense of awareness after reviewing this information.

Using Zone System Companion, a photographer can:

- Rapidly enter the traditional Zone System data
- Identify the geographic location of each shot with a pin on a map
- Describe each shot with both text and a voice recording
- Document each shot further with an iPhone/iPod photo of the subject
- Set defaults for camera, lens, f-stop, shutter speed, film and development adjustment
- Generate a report listing all information for each shot in a shooting session
- Include the iPhone/iPod photograph and voice recording in the generated report
- Export the shooting session report to the computer for use as a darkroom reference

Zone System Companion is being actively developed and enhanced. Please contact the developer with enhancement requests.

For further information and complete documentation, see:

What's New

Version 2.1

Build with iOS 10 SDK, supports iOS 8 thru 10.
Cleanup and bug fixes, specifically fixed a screen scroll issue when using dictation rather than keyboard.

Ratings and Reviews

Useful logging app

dame wang

This app would be better titled "Large Format Companion." It's a useful logging app for anyone shooting sheet film. Besides equipment and exposure data, you can save a photo of the scene (quite useful), make text notes, and record (and play back) audio notes. It also saves the GPS coordinates.

Strangely, it doesn't log the time of the shot. You have to remember to record that manually in the notes.



A cumbersome set up going in and out of folders to prompt further description. Also it doesn't do anything but let you create your own log of shooting days. Basically nothing to do specifically with the zone process. Also only for medium and large format

Needs to hold more info


I’m hoping to find an app that can help calculate Brightness Range with Shadow and Highlight readings. This is nice as a log, but it’s a bit cumbersome as it is.


Joseph Bacanskas
1.8 MB
Photo & Video
Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.
Age Rating
Rated 4+
© Copyright 2010-2017 Joseph Bacanskas, all rights reserved


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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