Stephen Mick
Totally Usable
All I can tell you is that an associate and I just shot a quick project for a client with the EX1 as the A-Camera and the GH1 as B-Camera. Both the EX1 and GH1 were at 1080p settings, and both look spectacular.
On the GH1 I could see very, very small areas that might be considered "mud," but honestly, you'd only see it if you were looking for it (aka pixelpeeping frame-by-frame). In the context of "moving pictures," you'd likely never notice. The GH1 footage overall is so amazingly sharp, and has such beautiful contrast and DOF (shot with the Olympus 50mm macro lens), even this tiny bit of "mud" would never make the footage "unusable."
As for "blocking artifacts" I saw none, either in 1080p or in 720p. From my experience, this is a non-issue.
The EX1 (shooting to the Nano Flash) obviously offers better options (more latitude) for color-grading in post, but the GH1 footage held up surprisingly well on its own.
--SM
On the GH1 I could see very, very small areas that might be considered "mud," but honestly, you'd only see it if you were looking for it (aka pixelpeeping frame-by-frame). In the context of "moving pictures," you'd likely never notice. The GH1 footage overall is so amazingly sharp, and has such beautiful contrast and DOF (shot with the Olympus 50mm macro lens), even this tiny bit of "mud" would never make the footage "unusable."
As for "blocking artifacts" I saw none, either in 1080p or in 720p. From my experience, this is a non-issue.
The EX1 (shooting to the Nano Flash) obviously offers better options (more latitude) for color-grading in post, but the GH1 footage held up surprisingly well on its own.
--SM