With the the Sigma DP2 now officially on sale it's time for the in-depth reviewers to have their say, and Photo Review is first at bat to weigh in with its opinion of the $699 compact, a shooter that doesn't exactly hit a home run. Sigma's latest is a pocketable camera that can take fantastic shots when properly used, but is frustrating to use, requires plenty of manual tweaking, and sends you wading through a mire of confusing menus to make those tweaks. Beyond that its low-light image quality disappointed, its LCD doesn't compare to those on cheaper compacts, there's no AF assist lamp, and of course there's that