Field Tools

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

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.

Simple, clean without ad application. Just what I need. Support multiple lens and cameras, easy to switch, thoughtful interface.

Useful field tool.

The old issues with precision are mostly gone and it's quite easy to use. The only big improvement I can see is the ability to group lenses by mount so when I am using one camera I don't see lenses that don't fit for it. This is probably not an issue for people who don't have so many cameras.

Nice app. nice clean interface, easy to use and to setup (unlike some others that are not very friendly either way), but… 1 - It does not display adequate precision - e.g. (my camera/lens) at 70m f2.8 1.4m focus distance displays the DOF as going from 1.4m to 1.4m in the app (rather than the 1.37m to 1.43m that it is - there is 6cm DOF where the app shows 0cm). I've found this on a lot of close and portrait setups, so it provides useless info. 2 - I set it up accurately for a professional Nikon Camera/lens setup, and found the info returned by the app to not agree with the DOF chart provided by Nikon, with enough of a difference as to be concerning and make me not use the app. To check I also setup a diff Nikon camera/lens, same issue, not agreeing e.g. app says 6.2m-24.7m, Nikon says 5.96m-33.24m. 3 - A number of minor bugs, and the occasional crash/shutdown.

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

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.

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).

Better than any of the other dof calculators out there - simple interface, accurate calcs, and gives you everything you need.