Translate this blog into your language

Tuesday, June 28, 2016

Canon EOS-1D X Mark II Camera Image Corruption With Sandisk CFast Card

Canon EOS-1D X Mark II camera

I have just returned from my High Arctic Photo Tour testing the Canon EOS-1D X Mark II camera in the cold and sometimes damp Svalbard archipelago, deep inside the Arctic circle. Once again, I am impressed by the new body but now I have to take some time to get back to the daily routine, process the photos and get ready for my next trip to further test the camera in a different part of the world and environment.

The Arctic is melting fast, at least in the summer time. Global warming is real and worrisome, especially for some Arctic wildlife, like the Polar bears, which depends almost entirely on sea ice for its survival. You can see my equipment bag and more of my works on

Now a bit of catching with the photography news while I was away in the High Arctic since there was no Internet access on the expedition ship. Canon announced a possible Sandisk CFast card image corruption with the EOS-1D X Mark II camera.

It has been confirmed that when shooting still images with the EOS-1D X Mark II digital SLR camera launched in April 2016 with SanDisk CFast cards, the following phenomenon will occur. We would like to offer our sincere apologies to users who have been inconvenienced by this issue.


If a SanDisk CFast card is inserted into the camera or a card reader, the bottom part of still images recorded may be corrupted.

This phenomenon is confirmed in images recorded in both the RAW and JPEG formats. In the RAW file, the image corruption may appear in the bottom right corner of the image. In the JPEG file, the image corruption may appear in the lower third area of the image. 

Please Note :

Movie recording is not affected by this phenomenon.

Still images or movies recorded to CF cards are not affected by this phenomenon.


This phenomenon is caused by SanDisk CFast cards. The camera does not cause this phenomenon.

Affected Products

SanDisk CFast cards.

Image corruption may be experienced with the cards listed below :

The “xxx” at the end of the product number varies depending on the sales region.
SanDisk Extreme PRO CFast2.0 64GB (SDCFSP-064G-xxx)
SanDisk Extreme PRO CFast2.0 128GB (SDCFSP-128G-xxx)
SanDisk Extreme PRO CFast2.0 64GB (SDCFSP-064G-xxxA)
SanDisk Extreme PRO CFast2.0 128GB (SDCFSP-128G-xxxA)
SanDisk Extreme PRO CFast2.0 64GB (SDCFSP-064G-xxxB)
SanDisk Extreme PRO CFast2.0 128GB (SDCFSP-128G-xxxB)

Market Support 

Although it has been confirmed that this phenomenon is caused by SanDisk CFast cards, to prevent the occurrence of this phenomenon, Canon will be releasing a camera firmware (Ver 1.0.2) on the Web for a download service in early July.

All new EOS-1D X Mark II cameras distributed by Canon Australia and Canon New Zealand after June 27th will have firmware Version 1.0.2.

We would like to apologize for the inconvenience, but we would like to ask our customers to refrain from using SanDisk CFast cards when shooting still images until the new camera firmware becomes available.


It is our understanding that image files of about 16MB or less recorded immediately before the camera’s power is turned off may become corrupted. Below are the methods available to help avoid image corruption when powering off the camera :

The Camera can be powered off in four ways :

1) When the power switch is set to OFF
2) When the card slot cover is opened
3) When the power is turned off due to the Auto Power Off setting
4) When the battery is removed

The phenomenon can be prevented by performing the procedure below:
Before powering the camera off, please take extra shots*1 because the extra shots taken immediately before the camera is powered off may experience the corruption and not the images taken before the extra shots were taken.

*1 The table below shows the most popular file types used and how many extra shots are recommended.

File Size (Approx.)  and how many extra shots one needs to
take in order to meet the 16MB or larger requirement

  23.2MB =  1
  L: 6.2MB =  3
  M1: 4.3MB =  4
  M2: 3.4MB = 5
  S: 2.2MB =  8

No comments: