FoCal Mobile

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About this app

FoCal Mobile brings Reikan FoCal's DSLR camera calibration and analysis tools to your mobile device!

Connect your camera to your device* and FoCal takes control to analyse the performance of your autofocus system and tune it for better shots.

The free FoCal Mobile app features:

- Automatic control of all Canon and Nikon DSLRs and Mirrorless cameras which support AF tuning (AF Microadjustment/AF Fine Tune)
- Automatic verification of test setup, including camera position, lighting, camera and lens settings and more
- One-tap testing of autofocus system performance, with scores and crops to review
- Camera time synchronisation

With a FoCal Pro subscription or FoCal Pro (Desktop) license (within support), you can add:

- Calibration of your lenses, tuning your autofocus for the best performance possible. Get the very best from your camera and lenses.
- Check your autofocus with cameras that have already been calibrated.
- FoCal Comparison Database: compare the performance of your kit with 1,000s of other users to find out how it compares to *real-world* use, NOT artificial lab tests!
- Review historical data, recall tests and calibrations you've run to find out how your equipment is holding up.
- Export data to FoCal Pro Desktop for more detailed analysis, charting, reports and more.
- One-tap Time Sync - synchronise your camera time with one tap right from the first screen of FoCal.
- Calibrate and analyse lenses with focal lengths over 400mm.

* Connection is via USB or the Reikan Wireless Camera Control Module.
- For iPhone and iPad with lightning connectors, you will require an Apple Lightning to USB3 Adapter in order to connect a camera.
- For iPad with USB-C, you can directly connect to the camera with just an appropriate cable.

FoCal requires the use of a FoCal Target, which can be printed using links from within the app, or purchased from the FoCal store.

You will need a FoCal account, which can be created for free from within the app. With a FoCal Pro (Desktop) license which is within the support period, you will have automatic access to all Mobile Pro features.

FoCal can control the following cameras (a complete list and help with each camera is available at:

- EOS-1D Mark III
- EOS-1Ds Mark III
- EOS-1D Mark IV
- EOS-1D X
- EOS-1D X Mark II
- EOS-1D X Mark III
- EOS 5D Mark II
- EOS 5D Mark III
- EOS 5D Mark IV
- EOS 5DSr
- EOS 6D
- EOS 6D Mark II
- EOS 7D
- EOS 7D Mark II
- EOS 50D
- EOS 70D
- EOS 80D
- EOS 90D

- D3
- D3S
- D3X
- D4
- D4S
- D5
- D6
- D300
- D300S
- D500
- D600
- D610
- D700
- D750
- D780
- D800
- D800E
- D810
- D810A
- D850
- Df
- D7000
- D7100
- D7200
- D7500
- Z30
- Z50
- Zfc
- Z5
- Z6
- Z7
- Z6ii
- Z7ii
- Z8
- Z9
Updated on
Apr 19, 2024

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Personal info, App info and performance, and Device or other IDs
Data is encrypted in transit
You can request that data be deleted

What's new

Version 1.8 brings connection via built in WiFi for supported cameras. Check out the Camera page at to see if your camera can run over WiFi. There's also support for the latest Nikon firmware on mirrorless cameras and lots of bug fixes and minor improvements.