Canon has released firmware updates for the EOS 5D, EOS-1D Mark II N and EOS 30D.

Firmware v1.0.5 for the EOS 5D fixes a Picture Style bug and solves a compatibility problem between the camera, EF 85mm f1/.2L and Speedlite 580EX, while firmware v1.0.4 for the EOS-1D Mark II N also fixes a Picture Style bug plus it addresses an overexposure problem when Focusing Screen Ec-S is used.

Firmware v1.0.4 for the EOS 30D is not new per se, but Canon has discovered that reinstalling this firmware version into the company's latest digital SLR can correct a Chinese language display problem in the menus.