Is Sony developing a Panasonic full-frame competitor to be announced in and around October 18 of this year? If sources to SonyAlphaRumors.com prove correct, they are indeed doing just that. SonyAlphaRumors.com reports credible information that indicates a product announcement from Sony of Japan on October 18 that will be a possible new camera model, the A7sIII (or A9s). These sources have worked with SonyAlphaRumors.com in the past and have provided information that later proved to be true, adding to their credibility, which SonyAlphaRumors.com establishes with each rumor. The first source indicated to SonyAlphaRumors.com that, “I heard a7s will have pdaf like the a9.” This source validated itself to the website with its correct prediction of a new Sony RX camera in September 2017 earlier this year.