Adobe has posted an early release candidate for the next Camera Raw update, designed to expand support of RAW formats within Photoshop CS4. The v5.4 patch is said to substantially increase the number of compatible cameras, which include recent prominent releases like the Canon Rebel T1i, Nikon D5000 and Panasonic GH1. Some other models now supported are the Olympus E-450 and E-620, the Sigma DP2
