"Sony a7R IIIA Specifications

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

Built-In ND Filter None

Capture Type Stills & Video

Shutter Type Electronic Shutter

Shutter Speed 1/8000 to 30 Seconds

1/8000 to 1/4 Second in Movie Mode

Bulb/Time Mode Bulb Mode

ISO Sensitivity Photo

100 to 32,000 (Extended: 50 to 102,400)

Video

100 to 32,000

Metering Method Center-Weighted Average, Highlight Weighted, Multi-Zone, Spot

Exposure Modes Aperture Priority, Auto, Manual, Program, Shutter Priority

Exposure Compensation -5 to +5 EV (1/3, 1/2 EV Steps)

Metering Range -3 to 20 EV

White Balance Presets: Auto, Cloudy, Color Temperature, Custom, Daylight, Flash, Fluorescent (Cool White), Fluorescent (Daylight), Fluorescent (Warm White), Incandescent, Shade, Underwater

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)

Self-Timer 2/5/10-Second Delay

Image Sizes 3:2 Raw

7952 x 5304

16:9 Raw

7952 x 4472

3:2 JPEG

7952 x 5304

5168 x 3448

3984 x 2656

16:9 JPEG

7952 x 4472

5168 x 2912

3984 x 2240

Aspect Ratio 3:2, 16:9

Image File Format JPEG, Raw

Bit Depth 14-Bit

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

Gamma Curve HDR-HLG, Sony S-Log 2, Sony S-Log 3

Recording Limit Up to 30 Minutes

Broadcast Output NTSC/PAL

IP Streaming None

Built-In Microphone Type Stereo

Audio Recording AVCHD: 2-Channel AC-3 Audio

XAVC S: 2-Channel LPCM Audio

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 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 Wi-Fi, Bluetooth

Global Positioning (GPS, GLONASS, etc.) None

Size 3.0″

Resolution 2,359,296 Dot

Display Type Tilting Touchscreen LCD

Type Built-In Electronic

Size 0.5″

Resolution 3,686,400 Dot

Eye Point 23 mm

Coverage 100%

Magnification Approx. 0.78x

Diopter Adjustment -4 to +3

Focus Type Auto and Manual Focus

Focus Mode Automatic, Continuous-Servo AF, Direct Manual Focus, Manual Focus, Single-Servo AF

Autofocus Points Phase Detection: 399

Contrast Detection: 425

Autofocus Sensitivity -2 to +20 EV

Built-In Flash No

Flash Modes Auto, Fill Flash, Hi-Speed Sync, Off, Rear Sync, Red-Eye Reduction, Slow Sync, Wireless

Maximum Sync Speed 1/250 Second

Flash Compensation -3 to +3 EV (1/3, 1/2 EV Steps)

Dedicated Flash System TTL

External Flash Connection Intelligent Hot Shoe, PC Terminal

Operating Temperature 32 to 104°F / 0 to 40°C

Battery Type 1 x NP-FZ100 Rechargeable Lithium-Ion, 7.2 VDC, 2280 mAh (Approx. 530 Shots)

Tripod Mounting Thread 1 x 1/4″-20 Female (Bottom)

Accessory Mount 1 x Hot Shoe Mount

Material of Construction Magnesium Alloy

Dimensions (W x H x D) 5 x 3.76 x 2.9″ / 126.9 x 95.6 x 73.7 mm

Weight 1.45 lb / 657 g"