# Field Tools

> Depth of field calculator for photographers with adjustable camera and lens settings. (iPhone/iPad app by Brad Sokol.)

- Source: https://appshunter.io/ios/app/field-tools/id305817254 (this page in markdown: same URL + `.md`)
- Developer: [Brad Sokol](https://appshunter.io/developer/305817257)
- Category: Photo & Video
- Price: Free
- Rating: 4.90/5 from 8 App Store ratings · 78 written reviews indexed
- Age rating: 4+
- Requires: iOS 12.0 · 1 MB
- Languages: American English
- Released: 2009-02-23
- Data updated: 2026-07-06
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/field-tools/id305817254/reviews.md

## What is Field Tools?

Field Tools is an efficient, easy to use depth of field calculator for photographers working in the field. Using just a few touches, you can quickly calculate hyperfocal, near focus and far focus distances, all from a single screen. App settings are also a single touch away. Features include:

    - Large, easy to read result display
    - Switch distance type - hyperfocal, near limit, far limit and combined near/far limits - with a single touch
    - Sliders for adjusting focal length, aperture and focus distance
    - Configure multiple cameras and lenses and switch between them with just a few touches
    - Results in meters or feet

Source code is available under the Apache Software License. Follow the link to the project page for more information.

## Key features

- Depth of field calculation
- Hyperfocal distance
- Near and far focus limits
- Adjustable focal length, aperture, focus distance
- Multiple camera/lens profiles
- Results in meters or feet

## Recent user reviews (10 of 78)

All indexed reviews: https://appshunter.io/ios/app/field-tools/id305817254/reviews.md

### 5/5 — Excellent

*2023-10-16, version 3.1.1*

Thank you. Excellent app that does what it says without all the unnecessary.

### 5/5 — Finally an app for 4x5

*2022-08-08*

There aren’t many depth of field apps for 4x5. Simple to use and easy to customise for my lens collection.

### 2/5 — Good and easy app

*2020-12-04, version 3.1*

But why it is not possible to write the distance to subject on the keybord instead of using the slider to do it? The slider is really annoying.

### 1/5 — Inaccurate hyperfocal

*2020-11-30, version 3.1*

Hyperfocal calculation is inaccurate.

### 5/5 — Excellente application

*2020-03-08, version 3.1*

On peut mémoriser les liste de ses objectifs et de ses appareils.
Très simple, très clair: efficace !

### 5/5 — Thank you for this app

*2018-08-12, version 3.0.3*

VERY useful app and spot on. Use it very often. Very easy to use.

### 5/5 — Thank you for keeping the app updated

*2017-09-11, version 3.0.1*

I really like this app, it,s a very nice and handy tool to determine the depth of field, allowing to set your own set of cameras and lenses.

### 5/5 — Always useful, now attractive again!

*2017-09-07, version 3.0*

I've had this app since 2010, and have kept it through many generations of iPhones. Over the years the interface felt increasingly dated, but it was so useful I couldn't part with it. I fully expected it to become obsolete with iOS 11, but was surprised with an update today! What a treat to see a developer maintain their tools.

### 5/5 — Depth of field

*2016-05-04, version 2.3.3*

When I first switched to digital. All my new lenses lacked any DOF markings. A great handicap and after finding this. I can know what to preset my F stop, for a given DOF.  Take the guesswork of of you DOF get this and you won't regret it!

### 4/5 — Great Resource

*2016-03-02, version 2.3.3*

Great reference that facilitates aperture settings for accurate DOF range. No need for guessing or fumbling with a piece of paper. Would like to see flash contribution (ambient to flash ratio). I'll even contribute the simple formulas (Only 2 needed).

## Frequently asked questions about Field Tools

### What does the Field Tools app do?

Field Tools is a depth of field calculator for photographers. It helps you quickly determine hyperfocal, near focus, and far focus distances directly from a single screen, making it efficient for on-location work.

### What are the key features of Field Tools?

Key features include a large, easy-to-read display for results, the ability to switch between different distance types (hyperfocal, near limit, far limit) with one touch, sliders for adjusting focal length, aperture, and focus distance, and support for configuring multiple camera and lens profiles.

### Is Field Tools free to use?

Yes, the application is available for free. There are no in-app purchases or advertisements mentioned, indicating a completely free experience for users.

### What kind of photographers would benefit from this app?

This app is ideal for photographers who work in the field and need to make quick, precise depth of field calculations. This includes landscape photographers, portrait photographers working outdoors, and any professional or enthusiast who values accurate focus control.

### Can I change the units of measurement?

Yes, the app allows you to switch the results to display in either meters or feet. This ensures compatibility with your preferred measurement system, whether you are working internationally or domestically.

## Version history (last 5 releases)

### 3.1.1 — 2022-09-09

- Fixed glitch in dark mode
- Minimum iOS version is now iOS 12

### 3.1 — 2019-10-25

Support for iOS 13 including Dark Mode.

### 3.0.3 — 2018-05-11

Bug fixes.

### 3.0.2 — 2017-10-26

- Updated design
- Compatibility improvements
- Bug fixes

### 3.0.1 — 2017-09-09

- Updated design
- Compatibility improvements
- Bug fixes

## Apps similar to Field Tools

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [LensTutorial](https://appshunter.io/ios/app/lenstutorial/id500543869) | 2.9 (7) | Free | Photo & Video |
| [Depth of Field Estimator](https://appshunter.io/ios/app/depth-of-field-estimator/id1540947216) | 4.8 (45) | Free | Photo & Video |
| [DOF Slider](https://appshunter.io/ios/app/dof-slider/id654949121) | 3.6 (8) | Free | Photo & Video |
| [light&depth: Sun, DoF and FoV](https://appshunter.io/ios/app/light-and-depth-sun-dof-and-fov/id1569241326) | 4.7 (204) | Free | Photo & Video |
| [Digital DoF](https://appshunter.io/ios/app/digital-dof/id412384880) | 4.6 (270) | Free | Photo & Video |
| [SetMyCamera](https://appshunter.io/ios/app/setmycamera/id670363905) | 4.4 (138) | Free | Photo & Video |

## Related topics

[field tool](https://appshunter.io/ios/topics/field-tool) · [depth of field estimator](https://appshunter.io/ios/topics/depth-of-field-estimator)

---

*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-06.*