In case you're still wondering if Panasonic's mirrorless Lumix GH2 is worth your $900, we've rounded up a handful of reviews to provide a pointer for your next big purchase. While most reviewers agree that this Micro Four Thirds camera appears to be very similar to its predecessor, they universally praise the subtly improved ergonomics, speedy liveview autofocusing, and refined image quality, especially with its 1080p AVCHD video recording (although Digital Camera Resource Page did notice some artifacting in its clips). Noise is also a non-issue up to about ISO 800 o