Sony A1 alpha1 Full-Frame Mirrorless Camera

Sony A1 alpha1 Full-Frame Mirrorless Camera

The a1 offers an extraordinary combination of high resolution and blazing speed. Ultra-fast readout from the 50.1 MP sensor allows continuous bursts at up to 30 fps with AF and AE tracking using the electronic shutter. Perfect for sports or any situation where the critical action is over in an instant.

Full-frame stacked 50.1 MP Exmor RS CMOS sensor with integral memory
A stacked architecture in this back-illuminated 50.1 MP full-frame image sensor contributes to high resolution and speed. Separate pixel and circuit layers and advanced A/D conversion mean faster processing.

New architecture and BIONZ XR image processing engine
The new BIONZ XR engine features advanced architecture that delivers 8x greater processing power7. The result is outstanding image quality as well as improved camera interface response.

Silent, vibration-free shutter
A silent4 electronic shutter provides greater opportunities for shooting sports and other subjects where noise is not tolerated. Vibration-free operation contributes to high image quality.

Anti-distortion Shutter
Fast sensor readout minimises still-image distortion when using the electronic shutter. The BIONZ XR™ engine and a large buffer achieve about 1.5x less distortion than the alpha9 II.

Flicker-free electronic and mechanical shutters
Another world first: flicker-free electronic and mechanical shutters. You get flicker-free shooting under fluorescent/artificial lighting with all the benefits of the electronic shutter.

Flash sync with electronic shutter
For the first time in an α camera, electronic shutter flash sync is possible thanks to high readout speed from the stacked CMOS sensor. All electronic shutter advantages remain available for flash shooting.

Despite the sensor’s high pixel count, a sensitive back-illuminated structure with gapless on-chip lenses and an AR coated seal glass allows a standard ISO range of ISO 100-32000, expandable to ISO 50-102,400. Up to 16 images shot with precise in-body image stabilization control can be combined via computer software to create photos with up to 199 million pixels for extraordinary resolution, colour, and atmosphere. 

5-axis optical in-body image stabilisation for a 5.5-step advantage

A precision stabilisation unit and gyro sensors plus the latest image stabilization algorithms deliver a 5.5 step shutter speed advantage, maximising the quality of high-resolution images.

Real-time Eye AF for birds
High-level subject recognition technology now makes it possible for Sony’s Real-time Eye AF function to track and accurately focus on bird eyes, even if the bird suddenly takes flight or the framing changes. This innovative function easily meets the many challenges of bird photography

Improved Real-time Eye AF for animals & Real-time Eye AF
Primarily designed for cats and dogs, this feature employs advanced subject recognition technology to reliably track and focus on animal eyes2. It even works if the animal’s face is upside-down. Combining state-of-the-art AI technology and evolved Fast Hybrid AF algorithms, Real-time Eye AF in the α1 tracks and focuses on human eyes with approximately 30% greater precision than the a9 II.

Next-Generation 8K video
The new image sensor and BIONZ XR engine in the α1 deliver 8K(7680×4320) 30p movie recording capability for extraordinary realism. Four times the resolution of 4K with full Real-time Tracking and Real-time Eye AF functionality. 8K footage is also ideally suited to flexible 4K editing. 8K 4:2:2 10bit recording is available as of α1 Ver. 1.3, allowing more varied expression and high-level editing capability at 8K resolution.

4K movies at a high 120 fps frame rate
The α1 supports high frame rate internal 4K movie recording at up to 120 fps, for smooth, expressive slow-motion3 playback at up to 5x. 10-bit 4:2:2 chroma subsampling can be used with Long-GOP or Intra (All-I)4 compression for outstanding image quality, while the new image sensor and BIONZ XR engine minimize image distortion.

4K with full sensor readout, no pixel binning, and 5.8K oversampling
In the Super 35 mode approximately 2.3x the amount of data required for QFHD 4K is acquired through full-frame readout with no pixel binning for beautifully imagery that is rich in detail.

10-bit 4:2:2 chroma subsampling
10-bit depth, 4:2:2 chroma subsampling, a high-efficiency MPEG-H HEVC/H.265 codec, intra-frame coding, and more, support flexible editing and a variety of delivery formats.

S-Log for compatibility with pro cine cameras & S-Cinetone
S-Log2 and S-Log3 are included. S-Log3 provides smooth 10-bit gradations and a dynamic range of 15+ stops. S-Gamut, S-Gamut3, and S-Gamut3.Cine color spaces supported. The a1 includes the same S-Cinetone colour matrix that produces beautiful colour and skin tones in the FX9, FX6, and other Cinema Line cameras. S-Cinetone delivers natural mid-tones that are essential to healthy-looking skin colour, plus soft colours and gorgeous highlights, responding to a growing need for more expressive depth.

“Active Mode” image stabilisation
A new Active Mode dedicated to movie shooting makes 5-axis optical image stabilisation highly effective for handheld shooting. It uses the BIONZ XR engine’s real-time processing capability to apply optimum compensation in all formats, including 4K9. All of this is realised without compromising the compact size and mobility of the α system.