Sony Alpha a7S III Mirrorless Digital Camera Body Only – 12.1MP Full-Frame, UHD 4K 120p, 5-Axis Stabilization

The Sony Alpha a7S III, a premier full-frame mirrorless camera, excels in video performance, sensitivity, and speed. Featuring a newly designed 12.1MP Exmor R BSI CMOS sensor and the updated BIONZ XR image processor, this model ensures superior image quality with enhanced noise reduction and a broad dynamic range. The camera supports UHD 4K recording at up to 120 frames per second and 10-bit 4:2:2 internal sampling, enabling high-resolution video capture with rich color detail and minimal rolling shutter effects.

For professional video work, the a7S III introduces advanced recording features such as 16-bit raw output via HDMI, high-bitrate internal recording, and multiple frame rate options, including up to 240p in Full HD. The camera's improved heat dissipation design ensures longer recording times, making it ideal for extended shooting sessions. Additionally, the camera supports both S-Log2 and S-Log3 gamma profiles for advanced HDR production, and it includes HLG for immediate HDR output.

Key Features:

• 12.1MP Exmor RS BSI CMOS Sensor and BIONZ XR Processor: This updated sensor provides high sensitivity with a range from ISO 40-409600 and improved performance with reduced rolling shutter effects. The BIONZ XR processor facilitates up to 8x faster data handling, 14 stops of dynamic range for stills, and 15 stops for video.

• UHD 4K 120p Video Recording: Full pixel readout without binning enables UHD 4K recording at up to 120p, with 10-bit 4:2:2 internal sampling. The camera supports slow-motion recording at 4x and 5x rates and has no recording time limits, benefiting from an improved heat dissipation system.

• Fast Hybrid AF System: The camera features 759 phase-detection and 425 contrast-detection points, covering 92% of the image area. This system includes Real-time Eye AF and subject tracking, ensuring precise focus in various conditions.

• 5-Axis SteadyShot INSIDE Image Stabilization: The 5-axis stabilization compensates for different types of camera shake, enhancing handheld shooting for both stills and video. An Active IS mode provides additional stabilization for smoother video footage.

• Body Design and Connectivity: The a7S III includes a 9.44m-dot OLED electronic viewfinder and a 3.0” 1.44m-dot vari-angle touchscreen LCD for flexible shooting angles. Dual memory card slots support CFexpress Type A and SD UHS-II cards, while USB 3.2 Gen 1 Type-C and HDMI A ports offer versatile connectivity options. The camera’s magnesium alloy body is weather-sealed for durability in challenging conditions.

Specifications:

• Sensor: 12.1MP Exmor RS BSI CMOS
• Processor: BIONZ XR
• ISO Range: 40-409600 (expandable)
• Video Recording: UHD 4K up to 120p, 10-bit 4:2:2 internal; 16-bit raw output via HDMI
• Continuous Shooting: 10 fps for up to 1000 raw frames
• Autofocus System: 759 phase-detection points, 425 contrast-detection points, Real-time Eye AF
• Image Stabilization: 5-axis SteadyShot INSIDE, Active IS mode for video
• Viewfinder: 9.44m-dot OLED
• LCD Screen: 3.0” 1.44m-dot vari-angle touchscreen
• Card Slots: Dual CFexpress Type A/SD UHS-II
• Battery Life: Approximately 510 shots/80 minutes with viewfinder, 600 shots/95 minutes with LCD
• Connectivity: USB 3.2 Gen 1 Type-C, HDMI A, 3.5mm headphone and microphone ports, Wi-Fi, Bluetooth

In summary, the Sony Alpha a7S III stands out for its exceptional video recording capabilities and robust performance in low-light conditions. Its advanced features, including high frame rate video recording, superior autofocus, and extensive connectivity options, make it a powerful tool for both professional videographers and photographers.