iPhone Screenshots


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.

What’s New

Version 3.1

Support for iOS 13 including Dark Mode.

Ratings and Reviews

4.7 out of 5
3 Ratings

3 Ratings

cyberchuck ,

Simple, easy, it just works.

I looked at quite a few more complex DoF calculators. Besides costing two bucks and up, it looked like they didn't work as well as this one. Pros: Once you select your camera and lens in this app, everything you need is on one screen--no toggling back and forth to change settings and then flipping to another screen to see the results. Cons: It doesn't seem to be able to show a result less than .1 feet. When you're doing close-up or macro work, that's not enough precision. One tenth of a foot implies that you've got 1.2" of DoF to work with, when in reality, you may only have a tiny fraction of an inch. But overall, it's an absolute bargain at the price (Free!).

Suggestions for future versions: 1) On the lens specification pages, allow entry of the closest focus distance, and use it as the minimum 2) For results less than a foot, show the result in feet and inches, like 8.5" instead of .7' 3) As noted above, show results below .1 feet.

New to hyperfocal ,

Great free product

Customizable and accurate. I would not use it for macro work. But then again that is not why i wanted the product. I would recommend this to any one to help improve their photography.

Also it would be great if it had function to calculate when you are diffraction limited to prevent people from going to a too small aperture setting on their camera

The only other con for this is that it does not compute the hyperfocal distance on large lenses properly.u Not that I am going to be taking any hyperfocal shots at 100 mm plus but I may want to selectively focus on some areas.

UberMortal ,

Great app!!

I use this every time I shoot. Adding inches to the display was great. Thank you.

Can you please make the sliders less sensitive? It is very hard to get specific measurements. I don't actually want dials. This will add another step to an already elegantly simple layout. Just make them less sensitive or like they behave when you watch a movie; you can drag down to change the sensitivity.

App Privacy

The developer, Brad Sokol, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

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

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