Would you believe us if we told you Sony packed a full-frame sensor in a Cyber-shot-branded camera? It’s true! Say hello to the RX1, a “compact” digital camera for pros that’s packing the same 24.3MP Exmor CMOS sensor introduced today with the A99. Calling the rangefinder-esque one-pound shooter small might seem off-base, especially considering the Zeiss Sonnar T* 35mm f/2.0 fixed prime lens protruding from its front, but it’s not so huge (3-inches high by 4.5-inches wide) up against its tiny sibling, the RX100 — taking into account how much larger the RX1′s sensor is, well, that’s when this editor’s jaw basically dropped. While it’s not a “pro-NEX” as many had hoped, Sony explained that it chose a fixed lens to avoid the bulk of a lens-mount. We were able to get some eyes-on time with an engineering prototype of the unit, so click past the break for more details, close-ups and a brief video overview.