” Sony renews the top of the range between-like APS-C Alpha A77 Mark 2 is PRESETA as the solid evolution of the previous model. Here it is live .”
Sony Alpha A77 was a historic transition for Sony: the presentation of the Alpha A77 and A65 cameras for the Japanese manufacturer has established the definitive abandonment of the reflex mirror system in favor of a system with no optical viewfinder and based on a mirror that divides the luminous flux in two, sending one part to the autofocus system – always on ‘socket’ then – and a part of the sensor. Both then are never ‘blind’, as occurs alternately in the reflex system.
The great advantage of the system SLT translucent mirror is to have the auto focus phase detection always active, even during the shooting, on the contrary, of what happens on the SLR.
The Sony Alpha A77 first release has hit the target to stand in the field of focus, but perhaps not as good as it would be expected. In the field of video operation focus in continuous mode was immediately definitely a step ahead of the competition and mirrorless cameras, the A77 and A65 making the first ” reflex ” (specifically in quotation marks) to be used with the focus automatic continuous mode without some heartache and without hesitation see in the movie, mistakes and focused by successive approximations.
In the field of photography instead auto focus module has been shown not to exploit the full potential of the fixed mirror, frame coverage for both, but especially for some uncertainty too much in the early stages of pursuit.
For the new Sony Alpha A77 Mark II, the Japanese brand has started right here, updating auto focus module. The processor and algorithms focus, to put totally to capitalize on the efforts to build the system SLT semi-transparent mirror.