This update – version 1.4.0 – offers improvement to the camera's Eye Detection AF feature, making it more responsive, and also fixes the known PTP security flaw.
Firmware Version 1.4.0 incorporates the following enhancements and fixes:
1. Enhances Eye Detection Autofocus (AF) for improved face and eye recognition at greater distances.
2. Improved AF performance helps the camera to focus on and track smaller subjects.
3. Reduces lag time between the actual AF and AF frame display for images in the viewfinder or on LCD.
4. Fixes a phenomenon in which the AF frame size cannot be changed in the Servo AF setting.
5. Fixes PTP communication vulnerability.
The instructions supplied with the firmware should be read carefully before attempting to install the update.
To download firmware v1.4.0 for the Canon EOS R, visit: