Capture One Pro Lens Profiles
When images are loaded or imported into Capture One Pro, lens profiles are automatically applied if they are available.
While the profiles made by the Capture One team are pretty accurate and work well, one shortcoming of using their profiles (or the Generic Pincushion/Generic Distortion profiles) is that any form of distortion correction will cause some pixel loss, so even if no resizing is done and the images are exported at full size, there is a chance that you will end up with images with slightly varying dimensions (depending on lens used and amount of distortion correction applied).
I have found that one way to circumvent this, if your camera body allows for it, is to use the “Manufacturer Profile” option, so even if distortion corrections are applied, the dimensions would remain the same.