FoCal 2.13 – Canon EOS-1D X Mark III support, Canon & Mac Fixes

FoCal 2.13 adds support for the newest Canon DSLR – the EOS-1D X Mark III. This camera brings an all-new AF system with improved accuracy and operation, including AF microadjustment at both ends of the zoom range.

FoCal 2.13 Beta 1 with Canon EOS-1D X Mark III support

What’s New in FoCal 2.13

Canon EOS-1D X Mark III

The new 1-series camera from Canon boasts a hugely impressive set of specs: 20.1MP image sensor, ISO range up to 819,200, 20fps shooting in Live View and lots more.

Reikan FoCal 2.13 with 1D X Mark III support - Clarity

The AF system has been revamped and uses a new high-resolution dedicated CMOS sensor purely for phase-detect autofocus, along with an AI-based processing system to adapt to the target subject.

Reikan FoCal 2.13 with 1D X Mark III support - Touch sensitive AF-On button

FoCal Support

FoCal fully supports the Canon EOS-1D X Mark III, allowing automatic autofocus calibration with minimal user interaction (User-Assisted Mode) as well as autofocus consistency, aperture sharpness and dust analysis measurements.

Adding new cameras to FoCal often highlights potential improvements that can be made to the support of older cameras. We run the full suite of our automated tests for supported cameras before release, and we’ve improved these to include some extra test cases.

In doing this, we’ve improved live view startup reliability on Canon cameras, as well as better detection of some focus parameters.

There’s also a fix to correctly action focusing before a shot when the camera is set to use back-button (AF On) focusing on older Canon cameras.

There is an occasional issue on macOS Mojave (10.14) and Catalina (10.15) where a Canon camera may be detected as “Canon Digital Camera” and FoCal will not allow you to connect until you fire up the macOS “Image Capture” application.

We’ve added a fix to the way cameras are detected which hopefully will fix this issue. It’s a bit difficult to reproduce and was a fairly rare problem anyway, but we think it should be fixed now.

More details…

There are more details in the changelog on the release notes for this release.

How do I get FoCal 2.13

Download FoCal 2.13 for Windows or macOS by logging in to the LMS at Once logged in, you will see a download link to the software.

This release is available to all FoCal users (FoCal Plus, Pro and Commercial/Non-Profit) who were within their Included Updates Period as of 29th April 2020 (the release date of FoCal 2.13 Beta 1). This means you can use the software if you purchased FoCal or an Included Updates Period extension on or after this date.

If the above does not apply to you, you can purchase another 12 months by logging in to the account system via and going to the Included Updates Period section.

You can get the software in one of two ways:

  • Go to the About > Update Check option in the software. From here you can hit the Download button to get the software.
  • By logging in to the FoCal Account system via

If you don’t own FoCal, you can purchase the software as a download or find sources for the boxed product from the FoCal Online Store.

Please note that with the current Covid-19 situation, we have stopped shipping hard targets from our store for the near future. You can print a target for calibration at home using the files supplied with the download package, and we will be shipping hard targets again as soon as possible.

The installation package contains the software, target images and a reference manual (also available via the Documents Download page).

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3 comments on “FoCal 2.13 – Canon EOS-1D X Mark III support, Canon & Mac Fixes

  • Gregory Hanson says:

    I seemed to have lost my 2.13 version when I downloaded the 2020 Alpha version. Is there any way to have the Alpha and a stable version on the same Win 10 computer?

    • Hi Gregory,

      Thanks for trying out the FoCal 2020 release and providing feedback 🙂

      That’s an oversight on our part, the intention was that FoCal 2020 be installed alongside an existing FoCal 2.x release. As you found currently that’s not possible and we will correct this in a following release.

      In theory it’s possible (with this first Alpha) by using a different Windows user account but in reality it’s probably easier to wait for the update.

      You can go back to an earlier release as needed. Uninstall FoCal 2020 and download and install FoCal 2.13 as needed.

      Best Regards,


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