Panasonic Lumix GH1 first impressions and first footage

Philip Bloom says:

It’s very compact due to the sensor being smaller and the omission of a mirror box. It has full manual controls for ISO. You can change the shutter and iris manually WHILST filming, no exposure lock needed. It has an autofocus that works pretty well whilst recording, both in centre frame mode and using facial recognition mode, something I have recently found outstanding on the little Canon VIXIA HF20. The ability to have full manual controls should not be underestimated. At the click of the dial on the front you can switch between aperture and iris. This can be done whilst shooting.