Sony A7R Mark IIIa (ILCE-7RM3A) Body Overview
Introduction
The Sony A7R Mark IIIa is a professional-grade mirrorless camera designed for photographers who demand exceptional image quality, speed, and versatility. With its advanced sensor technology and refined features, it delivers outstanding performance for both stills and video.
Key Features
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High-Resolution Sensor: Equipped with a 42.4MP back-illuminated Exmor R CMOS sensor, the camera produces stunning detail and dynamic range.
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Enhanced Image Processor: The BIONZ X processor ensures fast performance, improved noise reduction, and accurate color reproduction.
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Fast Autofocus System: Featuring 399 phase-detection and 425 contrast-detection points, autofocus is quick, precise, and reliable even in challenging conditions.
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Continuous Shooting: Capture action with up to 10 frames per second, maintaining sharpness and clarity.
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Improved Display: The Mark IIIa version includes a higher-resolution 2.36M-dot LCD for sharper previews and playback.
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Professional Video Capabilities: Supports 4K HDR recording with full pixel readout, offering cinematic quality for videographers.
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Dual Card Slots: Provides flexibility and security for professional workflows.
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Robust Build: Magnesium alloy construction with dust and moisture resistance ensures durability in demanding environments.
Connectivity
The camera offers USB 3.1 Type-C, HDMI, headphone and microphone jacks, and wireless options including Wi-Fi and Bluetooth, making it easy to transfer files and control remotely.
Conclusion
The Sony A7R Mark IIIa stands out as a versatile and powerful mirrorless camera, ideal for professionals and enthusiasts seeking uncompromising image quality and performance. Its combination of resolution, speed, and reliability makes it a top choice for diverse photography and videography needs.
Sony A7R III Specs
| 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
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| Sensor Crop (35mm Equivalent) |
Crop Factor: 1x
Additional Modes: 1.5x
*Additional Crop Occurs in Select Video Modes
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| Image Stabilization |
Sensor-Shift, 5-Axis
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| Built-In ND Filter |
No
|
| Capture Type |
Stills & Video
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Exposure Control
| Shutter Type |
Electronic Rolling Shutter
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| Shutter Speed |
1/8000 to 30 Seconds
1/8000 to 1/4 Second in Movie Mode
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| Bulb/Time Mode |
Bulb Mode
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| ISO Sensitivity Range |
Photo
100 to 32,000 (Extended: 50 to 102,400)
Video
100 to 32,000
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| Metering Method |
Center-Weighted Average, Highlight Weighted, Multi-Zone, Spot
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| Exposure Modes |
Aperture Priority, Auto, Manual, Program, Shutter Priority
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| Exposure Compensation |
-5 to +5 EV (1/3, 1/2 EV Steps)
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| Metering Range |
-3 to 20 EV
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| White Balance |
Presets: Auto, Cloudy, Color Temperature, Custom, Daylight, Flash, Fluorescent (Cool White), Fluorescent (Daylight), Fluorescent (Warm White), Incandescent, Shade, Underwater
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| 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)
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| Self-Timer |
2/5/10-Second Delay
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Still Image Capture
| Image Sizes |
3:2 Raw
42 MP (7952 x 5304)
16:9 Raw
36 MP (7952 x 4472)
3:2 JPEG
42 MP (7952 x 5304)
18 MP (5168 x 3448)
11 MP (3984 x 2656)
16:9 JPEG
36 MP (7952 x 4472)
15 MP (5168 x 2912)
8.9 MP (3984 x 2240)
|
| Aspect Ratio |
3:2, 16:9
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| Image File Format |
JPEG, Raw
|
| Bit Depth |
14-Bit
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Video Capture
| 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]
|
| Video Output |
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
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| Recording Limit |
Up to 30 Minutes
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| IP Streaming |
No
|
| Built-In Microphone |
Stereo
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| Audio Recording |
AVCHD: 2-Channel AC-3 Audio
XAVC S: 2-Channel LPCM Audio
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Interface
| 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 |
1x Micro-HDMI (Unspecified Signal) Output
|
| Audio I/O |
1x 1/8" / 3.5 mm TRS Stereo Headphone Output
1x 1/8" / 3.5 mm TRS Stereo Microphone Input
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| Power I/O |
1x USB-C Input
|
| Other I/O |
1x Sony Multi/Micro-USB Input/Output (Shared with Remote Input)
1x USB-C (USB 3.2 / 3.1 Gen 1) Output (Shared with Power Input)
1x PC Sync Socket Output
|
| Mobile App Compatible |
Yes: Android & iOS
App Name: Imaging Edge Mobile
Functionality: Access Stored Files, Adjust Settings, Remote Control
|
| Global Positioning (GPS, GLONASS, etc.) |
GPS
*Via Connected Smartphone
|
Monitor
| Size |
3.0"
|
| Resolution |
2,359,296 Dot
|
| Display Type |
Tilting Touchscreen LCD
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Viewfinder
| Type |
Built-In Electronic
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| Size |
0.5"
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| Resolution |
3,686,400 Dot
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| Eye Point |
23 mm
|
| Coverage |
100%
|
| Magnification |
Approx. 0.78x
|
| Diopter Adjustment |
-4 to +3
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Focus
| Focus Type |
Auto and Manual Focus
|
| Focus Mode |
Automatic, Continuous-Servo AF, Direct Manual Focus, Manual Focus, Single-Servo AF
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| Autofocus Points |
Phase Detection: 399
Contrast Detection: 425
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| Autofocus Sensitivity |
-2 to +20 EV
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Flash
| Built-In Flash/Light |
No
|
| Flash Modes |
Auto, Fill Flash, Hi-Speed Sync, Off, Rear Sync, Red-Eye Reduction, Slow Sync, Wireless
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| Maximum Sync Speed |
1/250 Second
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| Flash Compensation |
-3 to +3 EV (1/3, 1/2 EV Steps)
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| Dedicated Flash System |
TTL
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| External Flash Connection |
Shoe Mount, PC Terminal
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Environmental
| Operating Temperature |
32 to 104°F / 0 to 40°C
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| Storage Temperature |
-4 to 131°F / -20 to 55°C
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General
| Battery |
1x NP-FZ100 Rechargeable Lithium-Ion, 7.2 VDC, 2280 mAh (Approx. 530 Shots)
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| Shoe Mount |
1x Intelligent Hot Shoe
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| Tripod Mount |
1x 1/4"-20 Female (Bottom)
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| Materials |
Magnesium Alloy
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| Dimensions (W x H x D) |
5 x 3.76 x 2.9" / 126.9 x 95.6 x 73.7 mm
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| Weight |
1.45 lb / 657 g
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