Sandra BullockSandra Bullock has kept a low profile since her husband's sex scandal erupted in March. In the first clear photograph taken of the Oscar-winning actress since Jesse James' infidelity was made public, Bullock is seen hiking in Northern California without her wedding ring. The photo will be featured on Tuesday night's broadcast of 'Entertainment Tonight,' with ET reporting that Bullock "looked somber despite the occasional smile, wearing barely any makeup" or the vintage platinum ring she's possessed since her marriage to James in 2005.