Sony refreshed many of its mainstream Cyber-shot cameras at CES. Now that we're on the cusp of spring, the company is giving equal love to a trio of more specialized shooters arriving in the US. The 20.4-megapixel Cyber-shot HX300 superzoom easily bests its HX200V ancestor in the optics department with a 50X, 24-1,200mm equivalent lens that sports better stabilization, but the real allure is its autofocus sp
