The Sony Alpha a7R III has rumored for a long time, after the release of Sony Alpha a9 (Amazon/B&H Photo/Adorama), now more and more people are waiting for high megapixel Sony a7R III or Sony a9R. Currently, there is no detail specs rumors on a7R III or a9R. SAR said that a7R III will have a full frame mirrorless sensor megapixel around 60-70MP, and we may not see release of a7R III very quick, the rumored release date is in late this year.