This just received from Phase One:
Dear Nick,
the problem indeed does not exist in ISO 100 and that is because ISO 50 on those Canon cameras is not a real ISO setting, but a bit of a in-camera software processing. Capture One PRO 3.x will have this issue, but we have corrected it in Capture One 4.
You can read more about it in our Knowledge Base article #1197:
http://www.phaseone.com/HOME/Content/Suppo...Site%20-%20Main
If you need to use Capture One PRO 3.x, then a workaround is not to use ISO 50. Technically it will not give you cleaner images than ISO 100 anyway as the actual recording by the CCD is the same, so unless you need it due to ight conditions we would not recommend using it anyway.
If you have an Intel Macbook Pro, Capture One 4.8.2 should be very stable and quite fast. If it is Power PC based then you might see a slowdown as compared to version 3.x due to lack of Power PC optimization.
Thank you very much for your understanding and for contacting us.
With kind regards,
Hope that helps (though I don't think I used to have the problem either?)
Just tried with Version 4.8.2 - the problem is still there. And what is more I find V4.8.2 as painfully slow to use as I did with the earlier version of V4. Could be a case for installing Lightroom?
4.8.1 on an intel MacBookPro is very fast and very stable (4.8.2 has not been out long enough for me to comment about it, but so far so good). If this is not the case for you then you should try doing a
uninstall/reinstall per our instructions. Keep in mind that after updates/reinstalls Capture One will need to rebuild the cache of any folder you view, so when you first view a folder performance may be sub-par. Once the cache is built it should fly.
90%+ of the time when someone reports to me C1 is behaving strangely or is "slow" a reinstall per the instructions linked above takes care of the problem. If you have time/desire to try this and report back to the forum I'm sure we would all benefit from it.
Canon's extended (a.k.a. fake) ISO 50 is not supported in Capture One (any version). Using ISO50 will result in these strange pink highlights.
If LightRoom works for you then great. However, before switching you might compare conversions of LR and C1 4.8.X. Especially for longer exposures, mixed lighting, high ISOs, and for micro detail the difference can be surprising.
Doug Peterson
(e-mail Me)__________________
Head of Technical Services, Capture Integration
Phase One, Canon, Apple, Profoto, Eizo & More
National: 877.217.9870 | Cell: 740.707.2183
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