alfa 77The Sony Alpha 77 II (ILCA-77M2), stylized as the Sony α77 II, is an interchangeable-lens camera aimed at the advanced amateur. It replaced the Sony Alpha 77 model in June 2014. ItThe Alfa 77-PI is a compact three stage low pressure pressostat for panel mounting with a neutral zone and a 0+10Vdc P(I) output. The Alfa 77