The micro-four-thirds standard created by Panasonic, Olympus and Leica has intrigued us but its mightiest product to date, the Panasonic Lumix DMC-GH1 , leaves us scratching our heads. galleryPost('gh1bodyshots', 6, ''); Camera Be Still When it comes to still shooting, there is no difference between the GH1 and the G1 that Mahoney reviewed last November . It has a digital viewfinder instead of an optical one, which takes some getting used to but tends to work. It's got a huge number o