We've been hearing rumors about a mystical, magical A700 replacement since last year, and now Sony's gone ahead and made things more official. The teaser image shows a transparent case, but the bigger news here is the transparent mirror, the same as found last year on the A55 and A33. This allows for advanced, real-time autofocus while capturing stills or HD video. Behind that mirror will be an Exmor CMOS sen
