Sony A7S III vs A7R IV

It has been five years since the A7S II was first introduced, and Sony is pleased to announce the Alpha 7S III, which builds on the success of its predecessor with a 12.1-megapixel full-frame sensor. The latter is ideally suited to audiovisual professionals, offering excellent performance in low-light conditions and advanced ISO management, which ranges from 80 to 409600. The device is optimized for video recording, capable of filming in 4K DCI and UHD at 120 fps, as well as in Full HD at 240 fps in 10-bit 4:2:2 format, aligning itself with the most demanding production criteria.

The camera includes slots for an SD UHS-II card and a CF Express Type A card, enabling adaptability and enhanced responsiveness, particularly for burst shooting at up to 10 fps due to its large buffer. The NP-FZ100 battery, introduced more recently, offers a notable improvement in battery life, which is advantageous for extended production runs. The electronic viewfinder, comparable to those found in premium models such as the A1 or A7RV, offers unparalleled viewing quality, essential for precise composition.

This model features an innovative sensor that outperforms its predecessors in terms of low-light performance. It is also equipped with Sony's autofocus tracking technology for faces and eyes, including animals, making it extremely accurate in a variety of shooting contexts. The Sony Alpha 7S III is an excellent choice for professionals looking for a robust, video-efficient camera capable of capturing excellent images in difficult lighting conditions.

In July 2019, Sony expanded its line of full-frame cameras with the launch of the Sony Alpha A7R IV, which features 61-megapixel resolution. This model takes over from the A7R III and has some big improvements in performance and functionality, making it great for professional landscape, portrait, and studio photography thanks to the superior resolution and advanced image stabilization.

This model has an Exmor R CMOS sensor and the BIONZ XR processor, which lets you capture 10 frames per second continuously and record video in 4K UHD at 30 frames per second and 1080p at 120 frames per second. It's got two memory card slots: one for SD UHS-II and the other for CF Express Type A. That way, you can store your files in different places and transfer them pretty quickly.

At just 665 grams, this body is perfect for extended shoots, combining portability and robustness. The 5.76 million-dot viewfinder provides the clarity you need to frame your subjects. Even with the new A7RV arriving in October 2022, offering superior functionality, the A7R IV maintains an attractive price/performance ratio for experienced photographers and professionals.