24MP Full-Frame Exmor R BSI CMOS Sensor
BIONZ X Image Processor & Front-End LSI
693-Point Hybrid AF System
UHD 4K30p Video with HLG & S-Log3 Gammas
2.36m-Dot Tru-Finder OLED EVF
3.0" 922k-Dot Tilting Touchscreen LCD
5-Axis SteadyShot INSIDE Stabilization
ISO 204800 and 10 fps Shooting
Built-In Wi-Fi and NFC, Dual SD Slots
USB Type-C Port, Weather-Sealed Design

Distinguished by its updated sensor design, the Alpha a7 III Mirrorless Digital Camera from Sony is a well-rounded camera suitable for both photo and video applications in a variety of working situations. Refined for improved speed and low-light performance, the full-frame 24.2MP Exmor R BSI CMOS sensor and BIONZ X image processor pair to realize an impressive 10 fps continuous shooting rate and improved autofocus performance for faster, more reliable subject tracking along with wide frame coverage. This updated Fast Hybrid AF System employs a combination of 693 phase-detection points and 425 contrast-detection areas for quicker acquirement of focus in a variety of lighting conditions, and also maintains focus on subjects more effectively. In addition to speed and AF, the processing improvements also help to realize greater image clarity and reduced noise throughout the sensitivity range from ISO 100-51200, which can further be expanded to ISO 50-204800. Video recording capabilities have also been extended for enhanced quality when recording UHD 4K video with the full width of the full-frame sensor to minimize moiré and aliasing. Additionally, benefitting both stills and video operation, the a7 III utilizes a 5-axis SteadyShot INSIDE sensor-shift image stabilization, which is now effective to minimize the appearance of camera shake by up to 5 stops.

Beyond just updates to the imaging system, the a7 III's body design has also been revised to include a rear 3.0" 922k-dot touchscreen LCD, which has a tilting design to better support working from high and low angles. A 2.36m-dot Tru-Finder OLED EVF is also featured for bright and clear eye-level monitoring. For greater shooting flexibility, dual SD memory card slots are now featured, and a larger NP-FZ100 battery is also employed to achieve up to approximately 710 shots per charge. Suiting the camera's use in trying conditions, the magnesium-alloy chassis and weather-sealing also render the a7 III dust- and moisture-resistant.

Imaging
Lens Mount Sony E
Sensor Type : 35.6 x 23.8 mm (Full-Frame) CMOS
Sensor Resolution Actual : 25.3 Megapixel
Effective : 24.2 Megapixel (6000 x 4000)
Crop Factor : None
Aspect Ratio : 3:2, 16:9
Image File Format : JPEG, Raw
Bit Depth 14-Bit
Image Stabilization : Sensor-Shift, 5-Axis

Exposure Control
ISO Sensitivity : Auto, 100 to 51200 (Extended: 50 to 204800)
Shutter Speed : 1/8000 to 30 Seconds

Bulb Mode
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 : 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 24.2 MP for up to 89 Frames (Raw) / 177 Frames (JPEG)
Up to 8 fps at 24.2 MP
Up to 6 fps at 24.2 MP
Up to 3 fps at 24.2 MP
Self-Timer : 2/5/10-Second Delay

Video
Recording Modes : XAVC S/H.264
UHD 4K (3840 x 2160) at 23.976p/25p/29.97p [60 to 100 Mb/s]
Full HD (1920 x 1080) at 100p/119.88p [60 to 100 Mb/s]
Full HD (1920 x 1080) at 23.976p/25p/29.97p/50p/59.94p [50 Mb/s]
Full HD (1920 x 1080) at 50p/59.94p [25 Mb/s]
Full HD (1920 x 1080) at 25p/29.97p [16 Mb/s]
AVCHD/H.264
Full HD (1920 x 1080) at 50i/59.94i [24 Mb/s]
Full HD (1920 x 1080) at 50i/59.94i [17 Mb/s]
External Recording Modes 4:2:2 8-Bit
UHD 4K (3840 x 2160) at 24.00p/25p/29.97p
Full HD (1920 x 1080) at 24.00p/50i/50p/59.94i/59.94p
Recording Limit Up to 29 Minutes
Video Encoding : NTSC/PAL
Audio Recording : Built-In Microphone (Stereo)
External Microphone Input
Audio File Format AC3, Dolby Digital 2ch, Linear PCM (Stereo)

Focus
Focus Type : Auto and Manual Focus
Focus Mode : Automatic (A), Continuous-Servo AF (C), Direct Manual Focus (DMF), Manual Focus (M), Single-Servo AF (S)
Autofocus Points : Phase Detection: 693
Contrast Detection : 425
Autofocus Sensitivity : -3 to +20 EV

Viewfinder
Viewfinder Type : Electronic
Viewfinder Size : 0.5"
Viewfinder Resolution : 2,359,000 Dot
Viewfinder Eye Point : 23 mm
Viewfinder Coverage : 100%
Viewfinder Magnification : Approx. 0.78x
Diopter Adjustment : -4 to +3

Monitor
Size : 3.0"
Resolution : 921,600 Dot
Display Type : Tilting Touchscreen LCD

Flash
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 : Hot Shoe

Interface
Media/Memory Card Slot : Slot 1: SD/SDHC/SDXC (UHS-II)
Slot 2 : SD/SDHC/SDXC/Memory Stick Duo Hybrid (UHS-I)
Connectivity : 3.5mm Headphone, 3.5mm Microphone, HDMI D (Micro), USB Type-C (USB 3.0)
Wireless : Wi-Fi
Bluetooth
GPS : No

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