works well in Canon EOS 1D MK 4,
Verified Purchase(What is this?)
This review is from: Transcend 16GB 1000x Ultimate Compact Flash Card (Personal Computers)
Bought to replace what was a 'fast' card when the camera was bought,
And it doubles the full speed burst length & is ready for more much
more quickly. no problems at all & well worth the UKP32.