About Reikan Technology
The company behind FoCal: camera calibration and analysis software, made in the south of England.
At Reikan Technology we make software that helps photographers get the best from their cameras and lenses. Based in the south of England, we’ve been writing software since 2004, and selling it directly to photographers around the world since 2011.
Our main product, FoCal, launched at the very end of 2011 to automate autofocus calibration. It started as a Windows-only tool for two cameras, the Canon EOS 5D Mark II and the Canon EOS 7D.
Today FoCal runs on Windows, Mac, iPhone, iPad and Android. It supports 173 cameras, and connects to and controls 62 of them directly. FoCal also tracks how each camera and lens is holding up over time, with a regular Kit Health Check.
FoCal 6, released in November 2026, is the biggest update since the first version.