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Alpha 7R III – Full-frame Interchangeable Lens Camera 42.4MP, 10FPS, 4K/30p

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Refine your sense of reality with α7R III — an ideal partner offering superior speed, high-resolution imaging, pro-class operability, and reliable performance even under harsh conditions.


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Blending Speed and Resolution
Proving that speed, resolution, and video capabilities can all coexist, the Sony a7R IIIA is a versatile, high-performance camera characterized by not only its resolution, but by its multimedia versatility.
42.4 MP Exmor R BSI CMOS Sensor and BIONZ X Image Processor
Featuring a back-illuminated design, the full-frame 42.4-megapixel Exmor R CMOS sensor works with the BIONZ X image processor to offer high-resolution stills and video while minimizing noise and improving speed. This sensor structure works with gapless on-chip lens design and an anti-reflection coating, as well as eliminating the optical low-pass filter, to improve light collection and enhance detail. Also, the copper wiring layer dramatically improves data transmission speed for creating 14-bit, high-resolution 42.4-megapixel stills with a native sensitivity range from ISO 100-32000, which can be further expanded to ISO 50-102400. Also, it enables internal UHD 4K video recording with a wide dynamic range using the full width of the full-frame sensor. The BIONZ X processor also works in conjunction with a high-speed front-end LSI to realize faster processing times along with the ability to capture an impressive 15-stop dynamic range at low sensitivity values.

The sensor and processor combination also avails fast continuous shooting at up to 10 fps at full resolution, for up to 76 consecutive frames, and with full-time AF/AE when working with either a mechanical shutter or an electronic shutter. If shooting in live view mode, a continuous shooting rate of up to 8 fps is also possible.

Autofocus and Image Stabilization
Fast Hybrid AF System
An evolved 4D FOCUS system now employs a combination of 399 phase-detection points, which cover approximately 68% of the frame, along with 425 contrast-detection areas for reliable and quick autofocus and subject tracking performance. This Fast Hybrid AF System now achieves twice the focusing speed and more reliable tracking compared to previous a7R models, as well as improved low-light focusing response down to -3 EV.

  • Lock-on AF maintains focus on moving subjects throughout the use of a configurable frame that is set over the desired moving subject
  • Expand Flexible Spot employs neighboring focus points to retain focus on moving subjects even if the originally selected point loses focus
  • Eye AF can be used to base focus on recognized human subjects’ eyes for portraits and is available in both AF-S and AF-C modes, for both stills and video. Eye AF can be used when photographing animal subjects, too, with any focusing mode when shooting stills
  • Focus Magnifier function can be used for critical focus when homing in on minute subject details
  • Rear touchscreen can also be used for Touch Focus control, and a Touchpad Focus Control mode lets you use the rear screen intuitively while keeping your eye to the viewfinder
  • For more personalized control over focus, and benefitting working in either vertical or horizontal shooting orientation, the AF area can be switched in orientation to better suit your subject matter
  • AF tracking sensitivity can also be customized in five steps to match how a subject is moving
  • Frequently used focus point settings can be memorized and recalled with a custom button for faster switching between focus settings

Specification :

Lens Mount
Sony E
Sensor Resolution
Actual: 43.6 Megapixel Effective: 42.4 Megapixel (7952 x 5304)
Image Sensor
35.9 x 24 mm (Full-Frame) CMOS
Image Stabilization
Sensor-Shift, 5-Axis
ISO Sensitivity Range
Photo 100 to 32,000 (Extended: 50 to 102,400) Video 100 to 32,000
Continuous Shooting
Up to 10 fps at 42.4 MP for up to 76 Frames (Raw) / 76 Frames (JPEG) Up to 8 fps at 42.4 MP for up to 76 Frames (Raw) / 76 Frames (JPEG) Up to 6 fps at 42.4 MP for up to 76 Frames (Raw) / 76 Frames (JPEG) Up to 3 fps at 42.4 MP for up to 76 Frames (Raw) / 76 Frames (JPEG)
Internal Recording Modes
XAVC S UHD 4K (3840 x 2160) at 23.98/25/29.97 fps [60 to 100 Mb/s] 1920 x 1080p at 23.98/25/29.97/50/59.94/100 fps [100 Mb/s] 1280 x 720 at 100 fps [50 Mb/s] AVCHD 1920 x 1080p at 23.98/25/50/59.94 fps [17 to 28 Mb/s] 1920 x 1080i at 50/59.94 fps [17 to 24 Mb/s] MP4 1920 x 1080p at 25/29.97/50/59.94 fps [16 to 28 Mb/s] 1280 x 720 at 25/29.97 fps [6 Mb/s]
External Recording Modes
4:2:2 8-Bit via HDMI UHD 4K (3840 x 2160) at 23.98/24.00/25/29.97 fps 1920 x 1080p at 23.98/24.00/50/59.94 fps 1920 x 1080i at 50/59.94 fps
Media/Memory Card Slot
Slot 1: SD/SDHC/SDXC (UHS-II) Slot 2: SD/SDHC/SDXC/Memory Stick Duo Hybrid (UHS-I)
Video I/O
1 x Micro-HDMI (Unspecified Signal) Output
Audio I/O
1 x 1/8" / 3.5 mm TRS Stereo Headphone Output 1 x 1/8" / 3.5 mm TRS Stereo Microphone Input
Power I/O
1 x USB-C Input/Output
Other I/O
1 x Sony Multi/Micro-USB Input/Output (Shared with Remote Input) 1 x USB-C (USB 3.2 / 3.1 Gen 1) Input/Output (Shared with Power Input) 1 x PC Sync Socket Output
Wireless
2.4 GHz Wi-Fi 4 (802.11n) Bluetooth 4.1
Display Type
Tilting Touchscreen LCD
Battery Type
1 x NP-FZ100 Rechargeable Lithium-Ion, 7.2 VDC, 2280 mAh (Approx. 530 Shots)

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