During the last session with my Canon 50D, 4 or 5 photos from 180 appeared to be with artifacts: 1 Fullsize 15Mb 3 Fullsize 7Mb

These photos were already broken in preview on camera display, so it can't be usb cord issue. Each jpg is broken the same way as corresponding raw.

How can I troubleshoot the reason?

  • \$\begingroup\$ Are the *full *RAW files damaged in the exact same way, or just their JPEG previews? \$\endgroup\$
    – mattdm
    May 21, 2016 at 15:31
  • \$\begingroup\$ @mattdm, yes, seems like duplicate, thank you. And yes, full raws are damaged the same way, doublechecked. \$\endgroup\$
    – moropus
    May 21, 2016 at 16:40

1 Answer 1


I would start by using a different memory card.


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