[Mike Jackson] “Canon EOS plug-in for FCP7. Premiere (and After Effects) tend to leave artifacting and banding in the Canon H264s, (as does Compressor and MPEG Streamclip), but the EOS plug-in, transcoding to ProRes, gives much smoother gradients, and images that will color-correct much better.”
The what now? Transcoding does not add detail that isn’t in the original file.