Canon Australia has released a firmware upgrade for the EOS-1D C, the world’s first 4K DSLR.

The feature upgrade, which was first announced in January 2013, has been developed taking into account feedback from the professional community and adds support for 25p recording at the camera’s maximum 4K resolution. The EOS-1D C firmware upgrade is not downloadable. Customers should contact Canon’s service centre at North Ryde by email to make arrangement to have the new firmware installed: