16 May 2009
If you use an Apple MAC and have OS-X 10.5 then most likely you've been running 10.5.6 lately, but now 10.5.7 is now available to download and if you didn't get it already do so...
In MAC OS 10.5.6 Apple seemingly broke the tethered shooting functions making it very tough for users to shoot with cameras connected to the laptop. Typical symptoms include freezing of the whole computer, lock up of DPP or EOS Utility or similar. Usually it happens after around 15 minutes of continuous tethering, sometimes after 20 or more images have been transferred. MAC OS-X 10.5.7 seems to fix this, though there's no mention of fixes to USB on the update release notes.
To try it out we hooked up an EOS-1D Mark III and left it in live view mode for over 30 minutes it was still all alive and working and we could then pick the camera up and shoot a couple of hundred frames straight in to the MAC; just like you could do with MAC OS-X 10.5.5.
One thing that 10.5.7 brings is support for RAW images from EOS 5D Mark II, EOS 50D and PowerShot G10 according to the release note information.