Full Frame Mirrorless Interchangeable-Lens Camera
Now featuring a back-illuminated structure, is combined with the latest BIONZ X™ image processing engine and front-end LSI, and this combination achieves a data readout speed that is two times faster6 and data processing capability that is 1.8 times higher.
Up to 1.5-stop improvement in image quality
Standard ISO range is extended to ISO 100-51200 (expandable to ISO 50-2048007 for stills), while Detail Reproduction and Area-specific Noise Reduction technologies maintain image details and cut noise. With highly effective performance in mid-to-high sensitivity ranges, you can shoot at high ISO with no concerns about noise or image deterioration.
Steadier shots with 5-axis stabilization
The latest high-precision stabilization uses stabilization unit and gyro sensors and algorithms to achieve a 5.0-step shutter speed advantage in a system that compensates five types of camera shake with a wide range of lenses and delivers excellent performance.
14-bit RAW10 output for rich gradations
For smoother, more natural gradation, the latest BIONZ X image processor and front-end LSI process image signals in 16-bit form. This processor also allows 14-bit RAW10 data output, even when in silent or continuous shooting mode.
 Image sensor  The latest high-speed front-end LSI [a] 16-bit image processing
4D FOCUS—AF performance evolves
AF performance is improved using the same AF advancements as in the a9 and applying it optimally. Once the a7 III captures such unpredictably moving subjects as dancers, boxers, and wild animals in action, it won’t easily let them go.
Reliable AF down to EV-3 brightness
Advanced AF algorithms contribute to high AF precision down to light levels as low as EV-315, for more reliable autofocus in dark scenes.
Focal-plane phase-detection AF supports A-mount lenses
693-point focal-plane phase-detection AF not only covers a wide area and responds instantly—it offers the benefits of high tracking performance even with an A-mount lens mounted via mount adaptor LA-EA3.
Eye AF revolutionizes portraiture
With the a7 III, Eye AF can now be used with AF-C mode, for fast, effective eye detection/tracking performance when shooting stills. The easy maintenance of optimum focus on moving subjects can totally transform your portraiture.
Focus control via touch screen
The a7 III has Touch Focus function, and a Touch Pad function for you to fingertip-drag the focus frame intuitively while using the viewfinder.
AF in Focus Magnifier
Use autofocus for stills while the focus area is magnified in the viewfinder/monitor, and magnify the view after autofocusing. This is ideal for focusing on a small area and other precision-focus photography.
More versatile AF settings all around
AF tracking sensitivity for stills is adjustable in five steps. AF areas/points are changeable as you switch between horizontal and vertical orientation. Focus point settings can be assigned to custom buttons.
High-resolution 4K HDR
As well as new capability of recording stunning 4K movies through 2.4-times higher oversampling, the camera features a new HLG (Hybrid Log-Gamma) picture profile, supporting instant HDR workflow.
Full-pixel readout without binning for high-resolution 4K movies
Full-pixel readout without binning in full-frame mode makes it possible to condense approx. 2.4 times the data required for 4K movies (QFHD: 3840 x 2160), minimizing moiré and jaggies. Full-frame or Super 35-mm mode can be selected as needed. Furthermore, 4K recording3 employs XAVC S format at bitrates as high as 100 Mbps.