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. 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. 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. the full-frame 24.2-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 a gapless on-chip lens design and an anti-reflection coating to improve light collection and enhance detail. Also, the copper wiring layer dramatically improves data transmission speed for creating 14-bit, high-resolution stills with a native sensitivity range from ISO 100-51200, which can be further expanded to ISO 50-204800. This Fast Hybrid AF System now achieves twice the focusing speed and more reliable tracking compared to previous a7 models, as well as improved low-light focusing. Autofocus can also be used in conjunction with the Focus Magnifier function for critical focus when homing in on minute subject details. The 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 on the viewfinder. Full-frame 4K recording has also been dramatically improved for improved quality when working at mid to high sensitivities to permit full use of the entire sensor width. Full HD 1080p recording is also supported in frame rates up to 120 fps, and both resolutions utilize the 100 Mb/s XAVC S format contained within an MP4 wrapper with 4:2:0 sampling. An XGA OLED Tru-Finder EVF is featured and has a 2.36m-dot resolution and 0.78x magnification for bright, clear viewing in high detail. This viewfinder design also affords the use of autofocus in the Focus Magnifier mode as well as improved focusing peaking to benefit manual focus operation. Magnesium-alloy chassis assures rigidity, durability, and stability while remaining lightweight. The lens mount has also been improved to better support heavy lenses and the grip rigidity has been improved for more comfortable hand-holding. the versatile wide-angle to portrait-length FE 28-70mm f/3.5-5.6 OSS lens. This lens features one extra-low dispersion element and three aspherical elements to control both chromatic and spherical aberrations throughout the zoom range. A linear autofocus motor, coupled with an internal focusing design, offers quick and quiet focusing performance to suit both stills and video shooting
Sony A7 III Specs
Lens Mount | Sony E |
Camera Format | Full-Frame (1x Crop Factor) |
Pixels | Actual: 25.3 Megapixel Effective: 24.2 Megapixel |
Maximum Resolution | 6000 x 4000 |
Aspect Ratio | 3:2, 16:9 |
Sensor Type | CMOS |
Sensor Size | 35.6 x 23.8 mm |
Image File Format | JPEG, Raw |
Bit Depth | 14-Bit |
Image Stabilization | Sensor-Shift, 5-Axis |
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 |
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 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 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 |
Size | 3" |
Resolution | 921,600 Dot |
Display Type | Tilting Touchscreen LCD |
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 |
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 |
Operating Temperature | 32 to 104°F / 0 to 40°C |
Battery | 1 x NP-FZ100 Rechargeable Lithium-Ion, 7.2 VDC, 2280 mAh |
Dimensions (W x H x D) | 5 x 3.8 x 2.9" / 126.9 x 95.6 x 73.7 mm |
Weight | 1.43 lb / 650 g |
Focal Length | 28 to 70mm |
Maximum Aperture | f/3.5 to 5.6 |
Minimum Aperture | f/22 to 36 |
Angle of View | 75° to 34° |
Maximum Magnification | 0.19x |
Minimum Focus Distance | 11.81" / 30 cm |
Optical Design | 9 Elements in 8 Groups |
Diaphragm Blades | 7, Rounded |
Focus Type | Autofocus |
Image Stabilization | Yes |
Filter Size | 55 mm (Front) |
Dimensions (ø x L) | 2.9 x 3.27" / 72.5 x 83 mm |
Weight | 10.41 oz / 295 g |