Capture One v 8.3.0 does not support tethered shooting for the recently released Canon 5Ds & 5DsR. It is possible to circumvent this using a hot-folder solution with EOS Utility and a Capture One Session but it deprives Capture One of many of its useful tethering functions such as naming images correctly while tethering and automatically applying image adjustments to subsequent frames.
Erik Hillard of Running Pixels and I put our heads together and have come up with a functioning solution that resolves these issues. In a nutshell our solution is to transplant the Canon tethering framework from the most recent version (3.2.21) of EOS Utility available from the Canon website, into Capture One Pro v 8.3.0. This is a derivative of a previous workaround that was popular in 2012 to circumvent issues with tethering Canons on OS X 10.8.
I’m not certain who came up with that gem but thank you very much whoever you are. EDIT: Special Thanks to Eric Isaac, former Digi gone shooter, who actually figured this out in 2009 as a patch for OS X 10.6 compatibility with Capture One Pro 4!
Step by step guide after the break:
1) Download EOS Utility 3.2.21 and Capture One v 8.3.0 if you have not done so already, you do not need the installers, just the applications themselves.
2) Duplicate Capture One v 8.3.0 just in case 😉
3 (optional) Rename the Capture One copy
4) Right/ control click show package contents (this guy is going to be your new best friend)
5) nagivate to the Capture Core Services XPC file and open its contents
6) navigate to the Canon framework
7) In a new finder window open the applications folder and navigate to EOS Utility 3 and open its package contents
8) navigate to the tethering framework
9) Copy and paste the Canon framework contents from their origin in EOS utility to the corresponding folder inside of your adjusted version of Capture One.
C: select replace all
10) do a complete restart.
11) you will have to re-enter your Capture One Pro 8 license code or activate it in trial mode, don’t worry, this won’t use another license seat it simply needs to be re-entered because it is named differently than Capture One (which is how the activation file is saved).
You’re ready to roll!