Canon Using Some Sandisk Cfast Cards Can Destroy Photos On A 1D X Mark Ii

CFast is the industry’s answer to Sony’s XQD card (in a neverending standard war), but looks like this card is not without its issues.

Here is a snippet from that advisory:

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: *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’!” [Canon via dpreview]