The Sony Alpha SLT-A99 (replacing the A900) is a Mid-size full frame DSLR released in September 2012. It has a 24MP 36x24mm CMOS sensor, a fully-articulated 1.2M dot 3″ rear LCD and a 2.3M dot OLED electronic viewfinder, so Sony Alpha A99 is one of the best full frame DSLRs. Below are the best recommended lenses for Sony Alpha A99.