Sony has unveiled the Alpha 7C, the company’s latest full-frame mirrorless camera, an ultra-compact that, the company says, is now the smallest and lightest full-frame interchangeable lens camera featuring image stabilization on the market. Measuring in at 4.9 x 2.8 x 2.3 inches (12.4 x 7.1 x 5.9 centimeters) and …