Canon EOS R5 C Firmware 1.1.3.1

Canon EOS R5 C Firmware 1.1.3.1 expands what the EOS R5 C can do in demanding video environments by adding compatibility with the CINE-SERVO CN30×40 IAS J/R1 in RF mount and the CN30×40 IAS J/P1 in PL mount. It also changes the electronic level indicator so the display shifts color when the camera is properly level. On a body that often works on rigs, tripods, gimbals, shoulder setups and studio supports, that kind of immediate visual confirmation helps keep framing consistent and saves time during setup. For documentary shooters, commercial crews and hybrid creators, this firmware gives the R5 C a more production-friendly feel rather than simply adding a background tweak. The broader lens support makes the camera easier to place inside multicamera workflows and more natural to pair with servo-driven cinema glass when repeatable operation matters. The improved level display also helps confirm horizon alignment at a glance, which can reduce small corrections on set and make the camera feel more confident in fast-moving environments. Within Canon’s wider August 2026 Cinema EOS refresh, version 1.1.3.1 remains the build intended specifically for the R5 C, while other bodies in the family use their own separate firmware versions. Installation uses an SD/SDHC/SDXC memory card of 512 MB or larger and is intended for bodies currently running 1.0.0.1 through 1.1.2.1. After the update, returning to an earlier version is not supported. For owners who rely on the Canon EOS R5 C for real productions, that makes this firmware a focused but worthwhile upgrade: better lens compatibility, clearer leveling feedback and a little more trust in the camera’s day-to-day working behavior.