Sony has added two new models to its α (pronounced Alpha) family of interchangeable lens cameras. But the “compact, ultra-responsive” Sony α55 and α33 cameras also add something new – Translucent Mirror Technology. “These new models showcase an innovative optical system that opens up dramatic new shooting possibilities,” a Sony spokeswoman said.
“In contrast with conventional DSLR cameras, Translucent Mirror Technology uses a fixed, translucent mirror that ‘splits’ the optical pathway between the main image sensor and a separate phase-detection autofocus sensor.”
So, what does Translucent Mirror Technology offer? Well, it means that the high-resolution live image preview with rapid, accurate phase-detection autofocus is available at all times (either via the angle-adjustable 3inch LCD screen or the precision Tru-Finder electronic viewfinder.
“This also ensures that even moving objects stay in sharp focus at all times, whether you’re shooting Full HD video or stills,” the spokeswoman said.
Sony said that makes the α55 and α33 “a compelling choice” for casual photographers who want to capture spontaneous family moments and travel scenes with less to carry.
Both new models will be available from September 2010, with a price to be confirmed.