Key Features:
- 42.4MP Full-Frame Exmor R BSI CMOS Sensor
- BIONZ X Image Processor with Front-End LSI
- 399-Point AF System and 10 fps Continuous Shooting
- UHD 4K30p Video with HLG & S-Log3 Profiles
- 3.69M-Dot Tru-Finder OLED Electronic Viewfinder
- 3.0" 2.36M-Dot Tilting Touchscreen LCD
- 5-Axis SteadyShot INSIDE Stabilization
- ISO 50-102400 and Pixel Shift Multi Shooting
- Built-In Wi-Fi/Bluetooth, Dual SD Card Slots
- USB 3.2 Gen 1 Type-C Port & PC Sync Port
Overview:
The Sony a7R IIIA seamlessly combines high resolution with speed and versatility, making it a robust choice for both professional and advanced enthusiasts. Its impressive resolution and comprehensive feature set cater to a wide range of photography and videography needs.
Imaging Performance:
- 42.4MP Full-Frame Exmor R BSI Sensor: The back-illuminated design of this sensor, coupled with the BIONZ X processor, delivers exceptional detail and clarity. The sensor’s advanced design, including a gapless lens structure and anti-reflection coating, enhances light capture and detail. The native ISO range of 100-32000, expandable to 50-102400, ensures high-quality images even in low light.
- High-Speed Continuous Shooting: Capture up to 10 frames per second with full autofocus and exposure control. The camera can handle up to 76 consecutive frames, and in live view mode, it supports up to 8 fps.
Autofocus and Stabilization:
- Fast Hybrid Autofocus System: The a7R IIIA features a sophisticated 399-point phase-detection and 425-point contrast-detection system, offering quick and precise focusing. Enhanced tracking performance includes features like Lock-on AF, Expand Flexible Spot, and Eye AF for both humans and animals. The autofocus system performs well in low light, down to -3 EV.
- 5-Axis SteadyShot INSIDE Stabilization: This system provides up to 5.5 stops of compensation for camera shake across five axes, ensuring stable handheld shooting. The stabilization system supports all lenses, including adapted and third-party options.
Video Recording:
- UHD 4K Video: Internal 4K recording up to 30 fps utilizes the full sensor width for high detail, with support for 8-bit 4:2:0 color sampling in the XAVC S format. Oversampled 4K recording offers improved detail and reduced moiré. Full HD recording is available up to 120 fps, with Slow & Quick Motion modes for dramatic effects.
- Color Profiles: The a7R IIIA supports HLG (Hybrid Log-Gamma) for HDR content and S-Log3 for an extended dynamic range with up to 14 stops of flexibility in post-production.
Design and Build:
- Viewfinder and LCD: The camera features a 3.69M-dot Tru-Finder OLED electronic viewfinder for detailed, clear viewing. The 3.0" 2.36M-dot tilting touchscreen LCD offers intuitive operation and versatile shooting angles, tilting upward 107° and downward 41°.
- Durable Construction: The magnesium alloy body ensures durability and stability. Weather-sealing provides resistance against dust and moisture. The NP-FZ100 battery delivers approximately 530 shots per charge with the EVF and 640 shots with the rear LCD.
Connectivity:
- Ports and Interfaces: Includes a USB 3.2 Gen 1 Type-C port for fast data transfer and charging, a PC sync terminal for wired flash, and a micro-USB port. The camera also features 3.5mm microphone and headphone jacks, and compatibility with the Sony XLR-K2M adapter for professional audio recording.
- Wireless Features: Built-in Wi-Fi supports quick sharing of images and wireless tethering, while Bluetooth allows for location data collection. NFC enables easy pairing with mobile devices for remote control and live view.
Pixel Shift Multi Shooting:
This feature enhances resolution by capturing four consecutive frames with slight sensor shifts to create an image with approximately 169.6MP of data. The resulting high-resolution images offer greater color accuracy and detail, which can be combined during post-processing using Sony’s imaging software.
The Sony a7R IIIA stands out as a high-resolution, versatile camera, well-suited for detailed imaging, fast-paced shooting, and professional video recording.