Sony a7R IV vs Sony a7S III Specifications Comparison Camera Feature Sony a7R IV Sony a7S III Announced July 2019 July 2020 Camera Type Mirrorless Mirrorless Sensor Type BSI CMOS BSI CMOS Image Processor BIONZ X BIONZ XR Resolution 61.0 MP 12.1 MP Pixel Dimensions 9504×6336 4240×2832 Sensor Dimensions 35.7 x 23.8 mm (Full Frame) 35.6 x 23.8 mm (Full Frame) Sensor Pixel Size 3.8µ 8.4µ Low Sony a7S II Overview and Optics. The optics of the Sony a7S II receive a score of 66/100. This camera features a 12.2-megapixel CMOS sensor, coupled with a Bionz X processor. The shooting speed is 5 fps, and it has a full-frame sensor size. The DXOMARK score for the sensor is 85, which is a good rating in today's market. As with autofocus, the Mark III sees the a7S series finally gain the bigger battery introduced to the rest of the range back in 2017. The 16.4Wh NP-FZ100 battery is rated for 600 shots per charge using the rear screen and 510 using the EVF. There is a lot less certainty about what Sony's second registered camera could be. A sensible guess would be the successor to the Sony A7S III, which was released in 2020. Mirrorless Rumors' sources (who have previously proven to be pretty reliable) suggested that we would see the A7S IV in 2024, though the site expects it later in the year. The Sony A7S Mark 3 will appease shooters of all levels, with its various advancements to image quality, speed and low-light sensitivity. 12.1MP back-illuminated CMOS sensor. 10-bit 4:2:2 colour sampling. 4K 120p video recording. No recording limit for movies. Fast hybrid AF system - 759 phase-detection points. Feature lists. 24.2MP 2 35mm full-frame CMOS sensor with back-illuminated design. Sensitivity range up to ISO 51200 (expandable to ISO 50-204800 for stills) Fast Hybrid AF with 693 phase-detection and 425 contrast-detection AF points. High-speed continuous shooting of up to 10 fps 3 with AF/AE tracking. 4K HDR 4 5 movie recording capability. .

sony a7s mark iii specs