Sony Electronics Introduces High-resolution Alpha 7R IV Camera

World’s First 61.0 MP Back-illuminated, Full-frame Image Sensor

Sony Electronics Inc. announced the latest addition to its acclaimed Alpha 7R series full-frame mirrorless camera line-up: the extremely versatile, powerful Alpha 7R IV (model ILCE-7RM4). Sony’s highest resolution full-frame camera ever, the new Alpha 7R IV delivers stunning image quality with high resolution and wide dynamic range while maintaining outstanding focusing performance, high-speed continuous shooting and much, much more.

“We are continuing to drive innovation, break boundaries and redefine the expectations of digital camera performance,” said Neal Manowitz, deputy president of Imaging Product and Solutions Americas at Sony Electronics. “The new Alpha 7R IV combines medium format-level image quality with high-speed shooting, extremely fast focusing and an extensive list of upgrades to design, connectivity and usability. This will allow professional photographers, videographers and all other types of creators to capture content in ways that were simply not possible before.”

A New Level of Image Quality

The new Alpha 7R IV features a newly developed 35mm full-frame, back-illuminated CMOS image sensor with a resolution of 61.0 MP, the world’s first of its kind. The new sensor’s back-illuminated structure and effective noise reduction techniques combine to deliver extremely low-noise and high-sensitivity performance, ensuring the absolute maximum image quality. The camera also boasts an impressive 15-stop dynamic range at low sensitivities, resulting in smooth natural gradations ranging from deep shadows to highlights, and utilizes algorithms from many of the latest Alpha cameras to maintain outstanding color reproduction.

This new full-frame model is equipped with an innovative 5-axis, optical in-body image stabilization system that has been fine-tuned to support its high-resolution shooting capacity, resulting in a shutter speed advantage of 5.5-steps. Additionally, the shutter unit assembly has been carefully redesigned to reduce even the slightest movement that may cause blur.


Sony A7R IV Specifications

  • New 61-megapixel BSI full-frame sensor
  • Real-time Eye AF for stills, video, humans and animals
  • 15-stops dynamic range
  • 10fps burst shooting with full AF / AE Tracking
  • 4K video with S-Log2/3, HDR
  • 567 phase detection AF points

The Sony A7R Mark IV’s 61-million-pixel 35mm sensor is a world first, delivers ‘medium format quality. The sensor is a new generation and back-side illuminated, and it provides 15 stops of dynamic range. As well as 61-megapixel images, the Sony A7R Mark IV can also produce images with 26 million pixels in APS-C crop mode. What’s more, its revampled Pixel Shift Multi-Shooting mode can produce images at 240-megapixel resolution. It does this by capturing 960 megapixels worth of data from 16 images, which it then composites together using Sony’s Imaging Edge software.

The A7R Mark IV boasts 567 phase detection AF points in full-frame mode, which cover 74% of the frame. In the camera’s APS-C mode it has 325 AF points which then cover nearly the entire frame.  A7 IV is built for speed. Capturing full-resolution 61-megapixel images in continuous shooting mode, and up to 68 images per continuous burst.  The A7R Mark IV also includes its AI-driven Real-time Eye AF and Real-time Tracking modes. Also among its key features is 5.5-stop, 5-axis in-body image stabilisation, wireless tethering capability, faster USB connection, 802.11ac Wi-Fi plus Bluetooth and studio lighting support.

Sony A7R Mark IV Video Specifications   

The Sony A7R Mark IV can record 4K video using the full width of the sensor for capture. Also, for the first time, Sony has included real-time Eye AF for movies – the first time for video capture. Other Sony A7R IV video specs include S-Log3 mode for capturing wide 14-stop dynamic range and Hybrid Log-Gamma mode. As for audio, included a new digital audio interface between the microphone and camera. A conventional microphone sends an analogue signal that the camera converts to a digital format.  Sony’s new digital microphone, the ECM-B1M, transfers the audio signal from the microphone through the A7 Mark IV’s Multi-Interface Shoe to record digitally directly to the codec.

Sony A7R Mark IV body design

On board the Sony A7R Mark IV body are dual UHS-II card slots and a refined focus control to help boost productivity. There’s also a 5.76-million-dot UXGA OLED Tru-finder. An improved A7 Mark IV grip and enhanced dust and moisture resistance, as well as a sealed chassis.

Added Productivity 

Wireless connectivity and tethered shooting also get a boost, and the a7R IV supports 2.4GHz or 5 GHz WiFi, and is compatible with Sony’s Imaging Edge “Remote” software for quick sharing of images. A built-in USB Type-C connecter gives even quicker data transfer while tethered, which Sony notes is up to twice as fast as the a7R III. Brand new audio functionality includes a digital audio interface that has a premium digital studio signal from the microphone to the camera. A new multi-interface hot shoe is now included on the camera, and Sony has also introduced a new ECM-B1M shotgun microphone that has an analog-to-digital converter. 


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