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Sony Alpha a7III Full-Frame Mirrorless Digital Camera Body
- Mfr SKU: ILCE7M3/B
- 24.2MP Back-Illuminated Sensor
- 15-stop dynamic range, ISO 50 to 204,800
- 693 phase-detection / 425 contrast AF pts
- Eye-AF with AF-C; Touch AF
- 4K2 HDR Movie w/ full pixel readout
- Long Lasting Z battery – Up to 710 shots
- Dual SD slots (UHS-II SD Card compatible)
α7 III Full Frame Mirrorless Interchangeable-Lens Camera Body – Mfr SKU: ILCE7M3/B
Newly developed 24.2MP BSI Full-frame Image Sensor
The newly developed 24.2MP back-illuminated Exmor R™ CMOS image sensor is paired with a front-end LSI that effectively doubles the readout speed of the image sensor, as well as an updated BIONZ X™ processing-engine that boosts processing speed by approximately 1.8 times compared to the α7 II. This results in high sensitivity with low-noise performance and wide 15-stop dynamic range. It also has the ability to output 14 bit RAW format even when shooting in silent or continuous mode. Nothing less than spectacular images.
Evolutionary leap in image processing power
A combination of new-generation image processing system and a new sensor achieves an up to 1.5-stop improvement in image quality. A wide ISO sensitivity range of up to ISO 51200 is standard, and approx. up to 15-stop dynamic range at low sensitivity settings is realized. Upgraded Detail Reproduction and Area-specific Noise Reduction join to suppress noise and maintain a sense of high overall resolution. Colour reproduction, especially of skin and nature scenes, has also been dramatically improved. The α7 III also supports 14-bit RAW output even during silent shooting/continuous shooting.
Wider, faster, more steadfast AF performance
An evolved image processing system and α9 camera AF algorithms optimized for the α7 III improve AF speed, precision, and tracking performance. 693 phase-detection AF points and 425 contrast-detection AF points provide high-density wide-area coverage. AF speed improved by up to twice16 and more precise AF tracking performance let you capture and maintain focus on a quickly moving subject in unpredictable motion. The α7 III also autofocuses reliably down to EV-3 brightness.
Focal-plane phase-detection AF supports A-mount lenses
Phase-detection AF can operate even when an A-mount lens is mounted to the α7 III via an LA-EA3 adaptor. The 693-point focal-plane phase-detection AF system provides wide-area coverage, fast response, and high-performance tracking.
AF-ON button and multi-selector
The new AF-ON button activates autofocus without any half-press-shutter-button focus sequence, so you can concentrate better on exactly when to release the shutter and capture the moment instantly. A multi-selector lets you shift the point of focus quickly and efficiently. You can select and shift the point of focus intuitively, so you won’t miss great chances to shoot moving subjects.
Eye AF now supporting AF-C
Eye AF newly supports AF-C mode with greater precision that dramatically enhances portrait shooting, plus higher AF speed that makes it easier to shoot a portrait of a moving subject, even if the subject looks down and away from the camera, or is backlit with face in partial darkness. The α7 III supports Eye AF for A-mount lenses mounted via an adaptor.
Comprehensive AF convenience
AF tracking sensitivity when shooting stills is adjustable in five steps for subjects that move outside of the focus area. Autofocus areas and points remain the same or change when switching between horizontal and vertical orientations, depending on the shooting situation. AF area registration allows frequently used focus point settings to be memorized and assigned to custom buttons for fast, convenient recall at a touch whenever needed.
Enhanced operability for continuous shooting
Images captured in continuous shooting mode can be displayed as a group, and such groups can be deleted or protected in one quick operation. Furthermore, with higher burst capacity and UHS-II media compatibility, the camera significantly streamlines the operation of writing data to memory cards. The Fn button and menu button can be operated to change settings immediately after continuous shooting, while data writing is in progress.
Up to 10fps with AF/AE tracking
With new shutter charge unit and image processing system refinements, the α7 III can shoot continuously at up to 10fps with AF/AE tracking (up to 8fps with minimal display lag in live-view continuous shooting mode) for easy, stable shooting of even intensely active subjects. Up to approximately 177 JPEG images (standard) in full resolution, 89 compressed RAW images, or 40 uncompressed RAW images can be captured in one continuous burst. An electronic shutter allows silent, vibration-free shooting of wildlife and other sensitive situations when even slight noise can mean missing an ideal shot.
Flicker from fluorescent and other artificial lighting is automatically detected and shutter action is timed to minimize the flicker’s effect on still images. This suppresses exposure and colour anomalies at the top and bottom of images shot at high shutter speeds, as well as exposure and colour inconsistency between continuous shots, so you can take images indoors with more confidence.
Clear, natural, realistic 4K movies
High-resolution full-frame 4K movies with full-pixel readout without pixel binning that condenses approximately 2.4 times25 the amount of data required for 4K movies (QFHD: 3840 x 2160) results in minimal moiré and jaggies. Advanced image processing makes it possible to record full-frame 4K movies with outstanding image quality in the mid-to-high ISO range, so you make the most of the 4K movie format’s unique potential in every shot. Super 35 mm can also be selected, instead of full-frame mode, as needed.
Supports a wide range of needs in HDR movie production
Supporting a wide range of HDR movie production needs, the α7 III offers S-Log3 as well as S-Log2 gamma curves, for great flexibility to fine-tune images as desired through colour grading operation in post-production, and a new HLG (Hybrid Log-Gamma) picture profile for instant HDR workflow. However, colour grading is not required to enjoy instant playback of high-quality, true-to-life images with no blocked shadows or blown highlights on an HDR (HLG) compatible TV.
Versatile movie recording functions
The α7 III provides a wide array of functions to facilitate workflows of professional videographers, including clean HDMI output, time code/user bits (TC/UB), rec. control, marker display/setting, zebra function, Slow and Quick Motion, simultaneous proxy movie recording, extraction and separate storage of a still from a movie, and Gamma Display Assist function, among others.
My Menu and new menu interface
My Menu lets you register and arrange up to 30 menu items in order of frequency of use for instant recall, and unused items can be erased, as needed. A custom menu can be created to suit particular shooting needs. The α7 III has primary menus reorganized for easier searching, with group names and page numbers at the top of the displays.
Improved Fast Hybrid AF for movie recording
An efficient combination of focal-plane phase-detection AF and contrast-detection AF accurately locks onto even fast-moving subjects, then tracks them smoothly during movie recording. AF coverage for movies extends across an area almost as wide as the AF coverage area for still images, so once the high-density AF system locks onto a movie subject, the camera continues to track it steadily and tenaciously. Three AF drive speed settings give you freedom to use slow focus effects when shooting movie scenes.
Rating function convenient for on-location sorting
Ratings from 1 to 5 stars can be applied to still images and maintained as the images are imported into PlayMemories Home or the new Imaging Edge software suite from Sony running on a PC. This function and a protect function to prevent accidental image deletion can each be assigned to a custom button (C3 by default for protect). Ratings and protection can be applied via review playback display and continuous groups can be reviewed, protected, and deleted while you’re on location or traveling.
Promptly changeable customization
Camera setups can be registered (up to two in the camera and four on a memory card) for quick access via mode dial. Up to 81 functions can be assigned to 11 custom keys, and even sets of customized functions can be assigned for stills, movies, and playback. Recall Custom Setting During Hold function is convenient for temporary recall of shooting settings assigned to custom buttons while such a button is held.
High-resolution, high-contrast XGA OLED Tru-Finder™
Providing high resolution and contrast, plus the excellent gradation and colour reproduction that are advantages of OLED viewfinders, this approximately 2359K-dot XGA OLED Tru-Finder™ faithfully depicts images with clear corner-to-corner visibility. Magnification is 0.78x (approx. 38.5° diagonal FOV). ZEISS® T* coating greatly reduces obtrusive lens reflection on the ocular lens. Startup is approximately 40% faster than with the α7 II when the camera is switched on. Furthermore, view mode can be set to “High” to provide finer and more natural details by taking maximum advantage of the data read from the 24.2 effective megapixel sensor.
Touch screen LCD for easy instant focus operation
A 3.0-type 922K-dot LCD screen offers touch screen operation and bright, clear, finely detailed views even outdoors. Use Touch Focus to focus instantly on a point that you touch on the screen and Touch Pad to drag the focus frame with a fingertip on the LCD as you monitor the shot through the viewfinder. This LCD tilts up by as much as 107°, and down by as much as 41° for flexible, convenient camera holding and shot monitoring.
In-body 5-axis image stabilization with 5.0-stop shutter speed advantage
This comprehensive system compensates for five types of camera shake that tend to blur images: pitch/yaw shake when shooting at longer focal lengths; X/Y shake in close-up (including macro) shooting; and roll shake when recording stills at night and movies. It effectively achieves 5.0-stop-faster shutter speed, so the α7 III can take full advantage of its high-quality imaging capability and live-view image performance. Furthermore, it functions with A-mount lenses attached via mount adaptor, as well as E-mount lenses.
Smooth PC tethering via USB 3.1 Gen 1 port
A USB Type-C port supporting fast USB 3.1 Gen 1 facilitates high-speed PC Remote transfer of large RAW data files, so you can quickly review images on a PC and continue shooting without delay. Also, a setting to transfer only JPEG files to PC lets you check images via PC even more quickly after continuous shooting because the camera doesn’t have to send big volumes of RAW data.
Location Information Link via Bluetooth®
The camera can be paired with PlayMemories Mobile app installed on a compatible mobile phone or tablet device to acquire location data, record it on still images, and correct camera date/time and location settings. PlayMemories Home application can be used on a personal computer to organize imported still images on a map.
Dual slots with UHS-II compatibility
This camera provides two media slots for SD card (UHS-II-compatible for fast data writing) and SD card/Memory Stick™, respectively. Two cards in the slots can be used to simultaneously record or relay record data; separate RAW data from JPEG data, or stills from movies; and copy data from one card to the other. The memory card cover is lockable to prevent it from being opened unintentionally.
Highly durable and operable in tough conditions
The α7 III functions reliably in challenging environments. Its body is fortified by lightweight, high-rigidity magnesium alloy top cover, front cover, and internal frame. The number of lens mount screws has been increased to six for enhanced durability. Major buttons and dials are sealed. Sealing is provided throughout the body to minimize entry of dust and moisture.
Longer battery life to shoot for more professional lengths
For extended periods of confident shooting, the NP-FZ100 battery has approximately 2.2 times the capacity of a NP-FW50 battery that allows shooting of up to approximately 710 photos with one full charge and an optional VG-C3EM Vertical Grip can hold two batteries. USB Type-C™ and Multi/Micro USB ports allow external mobile batteries to power the camera for extended recording. Even more conveniently, accessories such as a remote control unit can be used via Multi/Micro USB port while power is supplied via USB Type-C™ port. BC-QZ1 optional battery charger allows quicker charging than charging via USB.
One-touch remote & One-touch sharing
One-touch remote can turn a smartphone or tablet into a viewfinder/remote control. One-touch sharing transfers photos/videos to your device for SNS sharing. Just install a PlayMemories Mobile app via Wi-Fi® to your NFC-enabled Android device, and then touch the device to the camera to connect them. If you don’t have NFC, use QR code compatibility to pair the devices.
New Imaging Edge software suite from Sony
Imaging Edge software suite can maximize image quality, improve production efficiency and help you finely adjust RAW-based images. Use its “Remote” to remotely control shooting while monitoring scenes via live-view PC screen; “Edit” to develop RAW data into high-quality photos; and “Viewer” to view, rate and select photos from a list of shots.
In continuous “Hi+” mode. Max. fps depends on camera settings. UHS-II compatible SDXC memory card required.
Class 10 or higher SDHC/SDXC card required for XAVC S movie recording, UHS speed class 3 or higher for 100 Mbps recording.
Connect to an HDR (HLG) compatible Sony TV via a USB cable to view HDR (HLG) movies.
Sony test conditions
Some distortion may occur with fast-moving subjects.
CIPA standards. Pitch/yaw shake only. Planar T* FE 50mm F1.4 ZA lens. Long exposure NR off.
Among non-reflex interchangeable lens digital camera equipped with auto focus function as of February 2018, based on Sony research.
CIPA standards. When using the LCD monitor. 610 images when using the viewfinder.
With SSM or SAM lenses only. With the LA-EA3 mount adaptor. Eye AF not supported for movie recording. AF-C can only be used when the “Phase detection” AF system is selected, but focus is fixed at the first frame during continuous shooting in any mode other than “Continuous: Lo” (Hi+, Hi, Mid).
Only 100 Hz and 120 Hz flicker is detected. Continuous shooting speed may decrease. Flicker-free shooting is not available during silent5 shooting, BULB exposure, or movie recording.
5x at 24p recording and 4x at 30p.
Not guaranteed to be 100% dust and moisture proof.
Measured with: CPU Intel® Core™ i7-6700 Processor 3.40GHz, Memory 8GB, OS Windows® 7 Professional, and Uncompressed RAW (α7R III L: 7952 x 5304)
|Package Weight||2.45 lbs|
|Package Dimensions||8.268 x 6.221 x 5.433 in|
1x NP-FW50 Rechargeable Lithium-ion Battery Pack1020 mAh
|Viewfinder Pixel Count||
1920 x 1080: 60 fps, 30 fps, 24 fps 1440 x 1080: 30 fps 640 x 480: 30 fps
Modes: Aperture Priority, Auto, Manual, Programmed Auto, Scene Selection, Shutter Priority, Sweep Panorama Metering Range: EV -1.0 – EV 20.0 Compensation: -5 EV to +5 EV (in 1/3 or 1/2 EV steps)
|White Balance Modes||
Auto, Cloudy, Color Temperature, Color Temperature Filter, Custom, Daylight, Flash, Fluorescent (Cool White), Fluorescent (Day White), Fluorescent (Daylight), Fluorescent (Warm White), Incandescent, Shade, Underwater
|Memory Card Type||
SDXC SDHC SD Memory Stick PRO Duo (High Speed) Memory Stick PRO HG-Duo Memory Stick XC-HG Duo
100-25600 (Extended Mode: 50-25600)
5.0 x 3.8 x 2.4″ / 126.9 x 95.7 x 59.7 mm
– 4 to +3 m
Center-weighted average metering, Multi-zone metering, Spot metering
Still Images: JPEG, RAW Movies: AVCHD Ver. 2.0, MPEG-4, XAVC S Audio: AAC LC, Dolby Digital 2ch, Linear PCM (Stereo)
10 seconds, 2 seconds Number of Shots: 1-5
|Sensor Type / Size||
CMOS, 35.8 x 23.9 mm
3″ Tilting LCD (1,228,800)
|Max Sync Speed||
1 / 250 seconds
1.22 lb / 556 g
|AC Power Adapter||
24 MP: 6000 x 4000
Actual: 24.7 Megapixel Effective: 24.3 Megapixel
|Video Clip Length||
Up to 29 Minutes
|External Flash Connection||
XAVC S 1920 x 1080p / 60 fps (50 Mbps) 1920 x 1080p / 30 fps (50 Mbps) 1920 x 1080p / 24 fps (50 Mbps) AVCHD 1920 x 1080p / 60 fps (28 Mbps) 1920 x 1080i / 60 fps (24 Mbps) 1920 x 1080i / 60 fps (17 Mbps) AVCHD 1920 x 1080p / 24 fps (24 Mbps) 1920 x 1080p / 24 fps (17 Mbps) MP4 1440 x 1080 / 30 fps (12 Mbps) 640 x 480 / 30 fps (3 Mbps)
Phase Detection: 117 Contrast Detection: 25
Type: Electronic & Mechanical Speed: 1/8000 – 30 second, Bulb Mode
Auto Fill-in Hi-Speed Sync Off Rear Sync Red-eye Reduction Slow Sync Wireless
|Viewfinder Eye Point||
|Box Dimensions (LxWxH)||
8.268 x 6.221 x 5.433″
Built-in Mic: With Video, Stereo
1/8″ Headphone, 1/8″ Microphone, HDMI D (Micro), Micro-USB, Multi Interface Terminal
-3 EV to +3 EV (in 1/3 or 1/2 EV steps)
Sony FE Mount
|Memory Card Type||
Up to 5 fps
|Dust Reduction System||
|Dedicated Flash System||
Up to 5 fps at 24 MP for up to 50 frames
Continuous-servo AF (C), Direct Manual Focus (DMF), Manual Focus (M), Single-servo AF (S)
|Max Image Resolution||
Compact Systems Camera, Digital Camera