Sony α - Wikipedia
APS-C - Wikiwand
Sony α7S III - Wikipedia
Sony Alpha 7R III, IIIA Specifications
Sony a7R III Mirrorless Camera: 42.4MP Full Frame High Resolution Interchangeable Lens Digital Camera with Front End LSI Image Processor, 4K HDR Video and 3 LCD Screen - ILCE7RM3/B Body
a7R III 35mm Full-Frame Camera with Autofocus, α7R III, ILCE-7RM3
Sony α7 - Wikipedia
Used Sony Alpha A7R III
Sony Alpha 7R III - Full-frame Interchangeable Lens Camera 42.4MP, 10FPS, 4K/30p