RECOMMENDED: Sony camera series mundane introduction in retrospect / 2025 📷 ⚙️ ℹ️

Sony α7R IV and the others...
Sony Alpha α7R IV (Mark 4), perhaps with the Sony FE 85mm f/1.4 G Master lens? Let's check the following Sony series via basic stats.
The Sony Alpha 1 (a1) is a flagship full-frame mirrorless camera designed for professionals, offering a powerful combination of high resolution and high speed. It is a full-frame mirrorless camera for professionals, featuring a new 50.1MP stacked sensor, 8K/30fps video recording, and high-speed performance. Key features also include a 50.1-megapixel sensor, 8K/30p and 4K/120p video recording, and up to 30 fps continuous shooting. It also boasts a sophisticated autofocus system with 759 points and advanced subject tracking, as well as a high-resolution electronic viewfinder and robust connectivity options. The camera was announced in 2021.
The Sony α7R IV is a full-frame mirrorless camera known for its high-resolution 61-megapixel sensor, fast autofocus, and robust build. Key features include 10 fps continuous shooting, Real-time Tracking for both photo and video, and dual UHS-II card slots. It also offers advanced capabilities like the 16-image Pixel Shift Multi Shooting mode to create approximately 240MP composite images. The camera was announced in 2019.
The Sony Alpha 7R III (A7R III) is a full-frame mirrorless camera known for its high-resolution 42.4 MP sensor, which is ideal for detailed photography like landscapes and portraits. It features a fast hybrid autofocus system, 10 fps continuous shooting, and 5-axis in-body image stabilization. The camera also offers robust video capabilities, including oversampled 4K recording, and is built with professional use in mind due to its dual card slots, durable build, and advanced connectivity options like USB-C. The camera was announced in 2017.
The Sony Alpha a9 (ILCE-9) is a professional-grade, full-frame mirrorless camera known for its high-speed performance, featuring a 24.2MP stacked CMOS sensor, fast BIONZ X processor, and a continuous shooting rate of up to 20 fps with AF/AE tracking. It was designed to compete with high-end DSLRs, offering features like silent electronic shooting, a 693-point hybrid AF system, and advanced video capabilities like 4K recording. The camera was announced in 2017 as a flagship model, and was later succeeded by the a9 II and other models.