I've got my new 428Ex up and running w/ Artemis.
I've set the cooler to -15C setting and turned it on; however, the Temp never drops below -4C (after two hours).
If I set the cooler setting to -10C the Temp stabilizes at -3.5C (after one hour).
If I don't turn the cooler on, the Temp stabilizes at about +23C (after 30 minutes).
I'm running the 428Ex in my office which is about +15C.
Is the temp really showing me anything of value? Is the temp of the camera actually getting to the set value?
How does one interpret the Cooler dialog?