Learn
How each FoCal test works, the full help, what FoCal can do with your camera, and printable targets.
Your Kit Health Check
A Kit Health Check is a few of FoCal’s tests run while you’re set up to calibrate, every few months. Each one adds to your kit’s history, so FoCal can show what’s changing.
About the Kit Health CheckOne guide per test
- Fully Auto calibrationFind the best focus adjustment for each lens
- CalCheckIs your calibration still right? Find out in minutes
- AF ConsistencyHow reliably does your camera hit focus?
- Aperture SharpnessFind your lens's sharpest aperture
- MultiTestCalibration and sharpness in one run
- Stabilisation TestHow much does your stabilisation really help?
- Dust AnalysisSee what's on your sensor
More to read
FoCal help
The full reference for FoCal 6: setup, every test, settings and history. FoCal opens the right page from inside the app.
How autofocus goes wrong
Two illustrated guides to DSLR and mirrorless autofocus: how it works, what knocks it out, and the evidence from FoCal users.
Cameras
What FoCal can do with your camera, how to set it up, and how much its lenses typically gain from calibration.
Target images
Print your own FoCal target, or find out about FoCal Hard Targets.
Quick start
Just bought FoCal? Activate, download, install and calibrate your first lens.
FAQ
Answers to common questions about buying, licensing, updates and using FoCal.