Since I started tinkering with a1ex's iso experiment, I'm totally hooked. I never shoot without it!
There's a drawback, however...
In it's current experimental state, it prevents recording camera audio in any of the >1920 zoom modes. Can't make use of any of the workarounds available.
A thought occurred to me when I saw the message on the camera screen saying that no h.264 proxy recording is available in zoom mode:
Can an "audio-only" proxy be recorded? Even if it includes totally corrupted video, the audio would be the important part.
Sorry if it's already been requested, it seems like an obvious idea, but a search turned up nothing for me.