Canon has released firmware v2.0.4 for its 5D Mark II DSLR that corrects the bug found in the previous version. With v2.0.3, sound recording would not work if a manual record volume was used in the C1/C2/C3 custom settings modes. The revised firmware update addresses the issue and is now available for download from Canon's website



Click here for more information and to download firmware v2.0.4 for Canon 5D Mark II