Canon just released an advisory asking photographers to avoid using some of Sandisk’s CFast cards on 1DXmkII‘s because it may corrupt images stored on the card (which is kinda funny considering Amazon is offering CFast cards in their premium kit).
Here is a snippet from that advisory:
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
Here is the list of ards to avoid according to Canon:
- 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)
Canon says that the fault is with the cards and not with the camera, but they will issue a firmware fix nonetheless. Untill then they ask to either refrain from using the mentioned card or take some extra “spare” photos as a workaround before shutting the camera off:
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.
As my buddy JP says, “keep them cameras clickin’!”