Sony has announced the addition of four new cameras to its lineup. The announcement includes the official launch of the Sony Alpha A77 DSLR that we have been seeing in leaks for a while now. In fact, some specs of the A77 leaked earlier this week. The official introduction is for the Alpha A77 and A65 DSLR cameras along with some interchangeable lens NEX cameras including the NEX-5N and NEX-7. The NEX-7 is the first camera I want to talk about.