Sony a1 II Mirrorless Camera

A fusion of leading technologies delivers overwhelming performance

The massive volume of data from the approximately 50.1 effective megapixel full frame Exmor RS image sensor is processed in real time by Sony’s BIONZ XR image processing engine. An advanced AI processing unit applies high-level subject recognition to reliably recognize a wide range of subjects. These state-of-the-art technologies come together to make it easy to capture even the most challenging subjects in extraordinary resolution, with blackout-free viewing and full AF/AE tracking performance at up to 30 fps.

Extraordinary detail with approximately 50.1 effective megapixels

Sony's extensive high-performance G Master line work with the 50.1 megapixel8 Exmor RS image sensor and BIONZ XR image processing engine to create deep, lifelike, high-resolution rendering. The sensor’s high pixel count means that resolution is still a very impressive 21 megapixels when shooting in APS-C mode or cropping to APS-C size after shooting.

Selectable RAW image size and quality

Compressed RAW images can be continuously shot at up to 30 fps. For easier handling, as well as L, Lossless Compressed RAW, JPEG and HEIF images are also available in M and S sizes with the same numbers of pixels whether shot in full-frame or APS-C mode, enabling seamless mode switching while maintaining resolution.

High sensitivity, low noise, and wide dynamic range

Feedback from professionals has been taken into account to create noise reduction that is highly effective without sacrificing image detail, so users can shoot clear images of indoor sports at mid to high sensitivity without hesitation. Dynamic range at lower sensitivities is a wide 15 stops for smooth, realistic gradations.

Consistently accurate exposure and color

Exposure and color reproduction are notably improved compared to the α1, with exposure optimized for detected faces in stills and movies, and exposure stability improved by approximately 20% even when the face is backlit, over-illuminated in sunlight, or not facing the camera. White balance is accurate even for subjects in shade.

Optical 5-axis image stabilization achieves 8.5-step performance at the center

A high-precision image stabilization unit, advanced gyro sensors, and optimized algorithms detect and correct camera shake, for a groundbreaking 8.5-step effect at the center and 7.0-step at the periphery, and capture of fine details even when shooting handheld. Synchronization with compatible lenses provides further blur control even at telephoto focal lengths.

Composite RAW modes for lower noise and higher resolution

Two composite RAW shooting modes are available. The NR Shooting Settings mode captures between 4 and 32 RAW images that can be composited to create a full-resolution image with very low noise even at mid to high sensitivities. Pixel Shift Multi Shooting captures 4 or 16 pixel-shifted images that are composited to achieve overwhelmingly high resolution in a single image. In both cases the compositing operations are performed using Sony’s Imaging Edge Desktop™ PC application.

Real-time Recognition AF for movies

Real-time Recognition AF utilizes advanced AI-based human pose estimation technology that recognizes and tracks not just eyes, but body and head position for human subjects with high precision. The range of subjects recognized with AI assistance, for both movies and stills, has been expanded relative to the α1, and now includes birds in movies for example. Other subjects are acquired and tracked in real time by processing color, pattern, and spatial data.