New Arrivals from Nikon and Sony

Sony has just announced a quartet of interesting cameras. Firstly, there is the updated for the A500 and A550 arriving in the form of the A560 (14.2MP) and A580 (16.2MP). Then there are the new, and much more interesting duo – the SLT A33 (14.2MP) and A55 (16.2MP). What exactly are these SLT’s? SLT stands…