Canon has suspended the availability of new firmware for its EOS 5D Mark II while it investigates a 'malfunction' related to the 2.0.3 update.

Canon has suspended the availability of new firmware for its EOS 5D Mark II while it investigates a ‘malfunction’ related to the 2.0.3 update.

The firm explained that the manual recording levels are changed and the camera is ‘unable to record audio’ if the power is turned off after registering ‘Sound Recording: Manual’ in the camera user settings.

Canon says it is working on new firmware that aims to correct this problem.

Firmware 2.0.3 was set to add 24 and 25 frames per second movie recording to the EOS 5D Mark II in a bid to deliver the ‘optimum frame rate for cinematic video’.

It was developed following calls from photographers and cinematographers, according to Canon.

‘The addition of the new frame rate expands the camera’s video potential, providing filmmakers with the ability to shoot 1080p Full HD footage at 24fps (actual 23.976fps) ? the optimum frame rate for cinematic video,’ said the firm earlier this month.

It was also designed to deliver a ‘fix’ to the manual sensor cleaning function of the EOS 5D Mark II.

Suspending the firmware download availability, Canon Japan has posted the following statement on its website:

Recently we have discovered a malfunction that occurs with Firmware Version 2.0.3, in which the manual recording levels for C1/C2/C3 are changed and the camera becomes unable to record audio if the power is turned off (or if Auto power off takes effect) after registering “Sound Recording: Manual” in the camera user settings.

We apologize very sincerely for the inconvenience, but we are going to stop making this firmware available for download. For customers who have already updated to the new firmware, when using the camera with the mode dial set to C1/C2/C3, please either set the sound recording settings to Auto.

We are currently preparing firmware that will correct this malfunction. As soon as those preparations have been completed, we will let you know on this Web site. In the meantime, we apologize for the inconvenience this represents, but please wait until the fixed firmware is ready.

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