Sony A7S Mark III Body (Black) Overview
Introduction
The Sony A7S Mark III is a professional-grade full-frame mirrorless camera engineered for filmmakers and content creators who demand top-tier video performance alongside excellent low-light imaging. Part of Sony’s acclaimed Alpha series, the A7S III pushes creative boundaries with its high sensitivity, advanced video formats, and industry-leading autofocus.
Design & Build
The A7S III features a durable magnesium alloy body that is dust and moisture resistant, making it reliable in challenging environments. Its redesigned grip ensures comfort during long shoots, while the fully articulating 3.0-inch vari-angle LCD touchscreen allows flexible framing. The 9.44M-dot OLED electronic viewfinder provides outstanding clarity for accurate composition and monitoring.
Imaging Performance
At the heart of the A7S III lies a 12.1MP full-frame Exmor R CMOS sensor paired with the powerful BIONZ XR processor. This combination delivers exceptional low-light performance, a wide dynamic range, and minimal rolling shutter. The camera’s ISO range stretches up to 409,600, making it a leader in capturing detail in extreme lighting conditions.
Autofocus & Speed
The camera employs a Fast Hybrid AF system with 759 phase-detection points and 425 contrast-detection points. Real-time Eye AF and subject tracking ensure sharp focus for both stills and video. With continuous shooting at up to 10 fps, it’s capable of handling both action and cinematic scenarios with precision.
Video Capabilities
The A7S III is designed for serious videographers. It records 4K UHD video at up to 120p with 10-bit 4:2:2 internal recording and supports 16-bit RAW output via HDMI for professional workflows. S-Log2, S-Log3, and HLG profiles offer maximum flexibility in post-production, while dual card slots supporting CFexpress Type A and SD UHS-II ensure reliable high-speed recording.
Connectivity & Workflow
With built-in Wi-Fi, Bluetooth, and USB-C 3.2 connectivity, the A7S III offers seamless file transfers, tethered shooting, and live streaming capabilities. The dual card slots allow simultaneous backup or extended recording, providing peace of mind during critical shoots.
Conclusion
The Sony A7S Mark III Body (Black) is a powerhouse mirrorless camera designed for professional filmmakers and hybrid creators. With its unmatched low-light performance, advanced 4K video recording, and reliable autofocus, it is a top-tier choice for cinematic storytelling and high-quality content creation. Compact yet powerful, the A7S III redefines what creators can achieve in the full-frame mirrorless world.
Sony A7S III Specs...
Imaging
Lens Mount |
Sony E |
Sensor Type |
35.6 x 23.8 mm (Full-Frame) CMOS |
Sensor Resolution |
Actual: 12.9 Megapixel Effective: 12.1 Megapixel (4240 x 2832) |
Crop Factor |
None |
Aspect Ratio |
1:1, 3:2, 4:3, 16:9 |
Image File Format |
JPEG, Raw, HEIF |
Bit Depth |
14-Bit |
Image Stabilization |
Sensor-Shift, 5-Axis |
Exposure Control
ISO Sensitivity |
Auto, 80 to 102400 (Extended: 40 to 409600) |
Shutter Speed |
1/8000 to 30 Second Bulb Mode |
Metering Method |
Center-Weighted Average, Highlight Weighted, Multiple, Spot |
Exposure Modes |
Aperture Priority, Manual, Program, Shutter Priority |
Exposure Compensation |
-5 to +5 EV (1/3 EV Steps) |
Metering Range |
-3 to 20 EV |
White Balance |
Auto, Cloudy, Color Temperature, Color Temperature Filter, Custom, Daylight, Flash, Fluorescent (Cool White), Fluorescent (Day White), Fluorescent (Daylight), Fluorescent (Warm White), Incandescent, Shade, Underwater |
Continuous Shooting |
Up to 10 fps at 12.1 MP for up to 1000 Frames (Raw) / 1000 Frames (JPEG) Up to 8 fps at 12.1 MP Up to 6 fps at 12.1 MP Up to 3 fps at 12.1 MP |
Interval Recording |
Yes |
Self-Timer |
2/5/10-Second Delay |
Video
Recording Modes |
H.265/XAVC HS 4:2:2 10-Bit UHD 4K (3840 x 2160) at 23.976p/25p/29.97p/50p/59.94p/100p/119.88p [50 to 280 Mb/s] H.265/XAVC HS 4:2:0 10-Bit UHD 4K (3840 x 2160) at 23.976p/25p/29.97p/50p/59.94p/100p/119.88p [30 to 200 Mb/s] H.264/XAVC S-I 4:2:2 10-Bit UHD 4K (3840 x 2160) at 23.976p/25p/29.97p/50p/59.94p [240 to 600 Mb/s] Full HD (1920 x 1080) at 23.976p/25p/29.97p/50p/59.94p [89 to 222 Mb/s] H.264/XAVC S 4:2:2 10-Bit UHD 4K (3840 x 2160) at 23.976p/25p/29.97p/50p/59.94p/100p/119.88p [100 to 280 Mb/s] Full HD (1920 x 1080) at 23.976p/25p/29.97p/50p/59.94p/100p/119.88p/200p/239.76p [50 Mb/s] H.264/XAVC S 4:2:0 8-Bit UHD 4K (3840 x 2160) at 23.976p/25p/29.97p/50p/59.94p/100p/119.88p [60 to 200 Mb/s] Full HD (1920 x 1080) at 23.976p/25p/29.97p/50p/59.94p/100p/119.88p/200p/239.76p [16 to 100 Mb/s] |
External Recording Modes |
Raw 16-Bit 4.2K (4264 x 2408) up to 59.94p 4:2:2 10-Bit UHD 4K (3840 x 2160) at 23.976p/25p/29.97p/50p/59.94p Full HD (1920 x 1080) at 23.976p/50p/59.94p Full HD (1920 x 1080) at 50i/59.94i 4:2:0 8-Bit UHD 4K (3840 x 2160) at 23.976p/25p/29.97p/50p/59.94p Full HD (1920 x 1080) at 23.976p/50p/59.94p Full HD (1920 x 1080) at 50i/59.94i |
Recording Limit |
Unlimited |
Video Encoding |
NTSC/PAL |
Audio Recording |
Built-In Microphone (Stereo) External Microphone Input |
Audio File Format |
AAC LC, AC3, Dolby Digital 2ch, Linear PCM (Stereo) |
Live Streaming |
Yes |
Webcam Functionality |
Yes |
Focus
Focus Type |
Auto and Manual Focus |
Focus Mode |
Continuous-Servo AF (C), Direct Manual Focus (DMF), Manual Focus (M), Single-Servo AF (S) |
Autofocus Points |
Phase Detection: 759 Contrast Detection: 425 |
Autofocus Sensitivity |
-6 to +20 EV |
Viewfinder Type |
Electronic (OLED) |
Viewfinder Size |
0.64" |
Viewfinder Resolution |
9,437,184 Dot |
Viewfinder Eye Point |
25 mm |
Viewfinder Coverage |
100% |
Viewfinder Magnification |
Approx. 0.9x |
Diopter Adjustment |
-4 to +3 |
Size |
3.0" |
Resolution |
1,440,000 Dot |
Display Type |
Articulating Touchscreen LCD |
Flash
Built-In Flash |
No |
Flash Modes |
Auto, Fill Flash, Hi-Speed Sync, Off, Rear Sync, Red-Eye Reduction, Slow Sync |
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 |
Hot Shoe |
Interface
Media/Memory Card Slot |
Dual Slot: CFexpress Type A / SD |
Connectivity |
HDMI A (Full Size), USB Type-C (USB 3.2 Gen 1), USB Micro-B (USB 2.0), 3.5mm Microphone, 3.5mm Headphone |
Wireless |
Wi-Fi Bluetooth |
GPS |
No |
Environmental
Operating Temperature |
32 to 104°F / 0 to 40°C |
Physical
Battery |
1 x NP-FZ100 Rechargeable Lithium-Ion, 7.2 VDC, 2280 mAh (Approx. 600 Shots) |
Dimensions (W x H x D) |
5.07 x 3.81 x 2.74" / 128.9 x 96.9 x 69.7 mm |
Weight |
1.35 lb / 614 g |