Sony 500mm f/4 G SSM review: The longest super telephoto prime lens ever tested by DxOMark

Introduction Sony announced the SAL500F40G at Japan’s premier imaging show CP+, staged in Yokohama in early 2012, though a prototype was premièred at CES in Las Vegas in 2011, alongside mock-ups of the to-be-released SLT-A77 and A33 models.Made to order, the $13,000 500mm f/4.0 model is the longest focal length lens from Sony bearing the G-series moniker, once an indicator of premium quality lens designs from Minolta that Sony acquired back in 2006.The optical construction is a modern design with no less than three ED glass elements plus internal focusing (for quick focusing and minimal disruption