Sony Alpha a7R IIIA Full-Frame Mirrorless Camera Body
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Enhanced image processing engine
The latest front-end LSI makes data readout from the image sensor approximately two times faster and the BIONZ X image processor is now about 1.8 times faster than previous models. Enhanced image processing realizes lower noise and further extended dynamic range across a wide sensitivity range of up to ISO 32000 (standard ISO, expandable to ISO 50-102400 for stills). Moreover, upgraded Detail Reproduction and Area-specific Noise Reduction achieves noise reduction — equivalent of approx. one stop — in mid-range ISO settings. Also, reproduction of skin color has been dramatically improved, which is advantageous for portrait shooting. The α7R IIIA also supports 14-bit RAW output even during silent shooting/continuous shooting.
A quantum leap in AF performance
An evolved image processing with 399 phase-detection AF points and 425 contrast-detection AF points provide high-density wide-area coverage. Up to approximately two times faster AF speed and two times more precise AF tracking performance let you capture and maintain focus on nimble wildlife in unpredictable motion. The α7R IIIA also autofocuses reliably down to EV-3 brightness. Eye AF with enhanced precision, further assists you to easily shoot a portrait of a moving subject using AF-C even during continuous shooting, and even if the subject looks down and away from the camera, or is backlit with face in partial darkness.
In-body 5-axis image stabilization
Now more effective than ever for the α series, this comprehensive system compensates for five types of camera shake that tend to blur images: pitch/yaw shake when shooting at longer focal lengths; X/Y shake in close-up (including macro) shooting; and roll shake when recording stills at night and movies.
Pixel Shift Multi Shooting
Applying mechanisms and control technology of image stabilization, this new feature composites four separate pixel-shifted images that contain total data equal to approx. 169.6 million, or 42.4 million x 4 (RGGB), pixels to reproduce a single optimal still image of super-high resolution, detailed texture, balanced color, and realistic atmosphere, with minimal moiré and color artifacts.
Supporting a wide range of HDR4 movie production needs, the α7R III offers S-Log3, as well as S-Log2 gamma curves for more flexibility to express images through grading operation in post-production, and a new HLG (Hybrid Log-Gamma) picture profile for instant HDR workflow.
Easy and fast operation
A familiar, well-laid-out button configuration makes it easy to operate the camera from muscle memory. Two media slots are at your disposal for SD cards (UHS-II-compatible for fast data writing) and SD/MS cards, respectively. Two cards in the slots can be used to simultaneously record or relay record data, separate RAW data from JPEG data, or stills from movies, and copy data from one card to the other.