Since I've got this Canon EOS 1D C on loan from B&H PhotoVideo for the next month, of course I wanted to quickly see how well (or even if) I could edit the 4k video on my iMac and how i'd do the ingest (import).
I have a 2012 iMac with the i7 processor and 32gb of RAM… plus a 1TB fusion drive.. so this tends to be fairly high end as compared to a macbook pro for example. By using the proxy video, you should be able to edit quite easily.
What you have to watch out for is the CF card speed! I have a 60mbs card (400x) and after about 20-30 seconds, the buffer fills and the Canon EOS 1D C stops recording. Boo!
I'll have more on card speed later in this series.
Canon EOS 1D C 4k video to FCPX ingest workflow for Mac
(cover photo credit: snap from the video)