The Lumariver Depth of Field Calculator is an app that helps you maximize the sharpness of your photographs. It’s primarily intended for landscape, architecture and all other genres where the goal is to have a sharp image front to back. Rather than being a calculator for theoretical exercises it’s designed for being a practical tool in the field, and it has a thorough user manual that describes real use cases. The user interface is optimized for one-hand operation using scrollers.

In addition to the normal depth of field calculator it supports tilted depth of field (tilt-shift lenses, Scheimpflug principle) as well as focus stacking. The functions you don't intend to use can be turned off to keep the user interface as clean and simple as possible. Custom circle of confusion sizes can be set, which in addition to a fixed number may be relative to airy disc diameter and/or pixel pitch. It even supports dual circle of confusion sizes, one “sharp” and one “soft” to make it easy to do controlled trade-offs in difficult situations. By entering your own camera(s) and lenses once you have them easily accessible by name making the workflow efficient in the field.

Distances can be shown either in meters or in decimal feet.

What’s New

Version 1.0.7

- Fixed: settings could be lost on devices with little space left.
- Fixed: tilt sensor would not work on iOS 13.
- Improved: better layout on iPhone X.
- Maintenance: further library upgrades for better support of newer devices.

Ratings and Reviews

2.7 out of 5
3 Ratings

3 Ratings

wisest of the wise ,

Limited usefulness

The measurements are in meters only and the closest focus distance is two meters. Often for portraits my distance is less than that so the app is very limited for me. My fault for not taking the developer at his word, it’s for landscape work.

Mattician ,

Out of date don’t buy

Do not buy I want my money back! It’s way out of date and can only go to f2.8......

Dhchew63 ,

Finally a DoF Calculator I can Trust

This app was obviously designed by a photographer who actually uses lens tilt movement in the field. It is set up to be flexible enough to use with a ground glass, live view or even blind shooting. Starting with the ability to calculate CoC in a variety of ways, and finishing with a brilliantly-versatile layout that gives you what you need, this app is quite useful while shooting.

Perhaps a bit intimidating at first for those who are not comfortable with how the Scheimpflug principle works. But it can help with that too, since playing around with the sliders shows clearly what changing tilt angle and focus distance does.

The flexibility in calculating CoC allows you to configure this to your needs, which ultimately means you can trust the results.

There is a nice attention to details, like always displaying the hyperfocal distance at the bottom.


Xarepo AB
12.4 MB

Requires iOS 10.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating


  • Family Sharing

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

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