New Sony cameras – all the details with a video mode emphasis on EOSHD Sony A77 official Sony NEX 7 official Sony VG20 – worthy challenger to the FS100? Sony NEX5N – video dark horse? A77 – breaking news DPReview has full resolution 6400×4000 ISO samples from the A77 up to 12800. DPReview reports that switching to movie mode on the A77 results in a dramatic crop of the sensor.…