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Doug,We (Digital Transitions) will be testing this with Leaf Aptus II, Leaf Credo, Phase One IQ, and Phase One P+ with an Apple MacBook Air 13" the moment we receive ours.
We'll also be in close touch with Phase One Denmark who will be doing their own testing.
Ship time is listed as 1-3 days so may be this week, may be next week.
+1!Doug - as always thanks for your careful work and your contribution - you're a real credit to this community.
Hey everyone. As promised we have done an initial round of fairly extensive testing with the Thunderbolt adapter.
Phase One Denmark have received their adapters and will begin formal and extensive engineering testing this week. In addition, absolutely nothing is a substitute for the real world. So I post these results with the advice that if you don't need such an adapter it's still a good idea to wait a few weeks for others with less fear of the cutting edge to find any possible glitches that our initial testing has not revealed.
Also, this is just a summary of what we've learned through testing. A more detailed post will be made to our website with some comparative speed charts etc probably next week.
With those caveats out of the way...
Backs: Mamiya Leaf Credo 80, Phase One IQ140, and Phase One P65+.
Computer: [MacBook Air 2011 vintage with 4gb of ram and OSX 10.8] vs [MacBookPro 2009 with 8gb of ram, SSD, and OSX 10.8]
Software: Capture One 6.4.3
File Formats: Full Resolution and Sensor+ (on the two P1 backs) in both IIQ-S and IIQ-L
Results with factory default settings: all three did not work.
Results with non-default settings selected: all three worked flawlessly. No errors, communication drops, lockups, or other issues.
The non-default settings required all relate to telling the back not to rely on consistent/sufficient firewire voltage.
IQ: Menu > Power Management > Battery Charging > Off
P+: Menu > Configuration > Power Source > Battery
Credo: Menu > Power Management > Battery Charging > Off
Phase One's US office is reporting that they felt the Thunderbolt-to-Firewire connection was modestly slower than native Firewire. We cannot confirm these results since our testing on speed is not entirely apples-to-apples, though it is two apple computers . However, our [13" Macbook Air with Thunderbolt] outperformed our [15" MacBookPro with FW] in about half our tests. So I suspect that if the Thunderbolt based FW connection is slower, it's a pretty minor difference. A relatively moot point since if a computer has a FW port I would suggest it (simply one less component / attachment point to fail or hassle you). So Thunderbolt (in my mind) will only be used on computers like the Retina MBP which only has Thunderbolt.
All in all very positive for those who are hoping to tether P+, IQ, or Credo backs to a Thunderbolt computer.