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Product Description :
The 35mm full-frame Exmor R CMOS image sensor features 24.2-megapixel resolution, back illumination and gapless on-chip lens design for extraordinary sensitivity and dynamic range, and other innovations that unleash the sensor's power to make images look realistic.
The latest front-end LSI makes data readout from the image sensor approximately two times faster and the BIONZ X image processor in the Sony A7 III is now about 1.8 times faster. Enhanced image processing realizes lower noise and further extended dynamic range across a wide sensitivity range of up to ISO 51200 (standard ISO, expandable to ISO 50-204800 for stills). Moreover, upgraded Detail Reproduction and Area-specific Noise Reduction achieves noise reduction — equivalent of approx. one stop — in mid-range ISO settings. Also, reproduction of skin color has been dramatically improved, which is advantageous for portrait shooting. The α7 III also supports 14-bit RAW output even during silent shooting/continuous shooting.
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. Up to approximately two times faster AF speed and two times more precise AF tracking performance let you capture and maintain focus on nimble wildlife in unpredictable motion. The α7 III also autofocuses reliably down to EV-3 brightnes.
Eye AF's enhanced precision, plus two times greater AF speed and AF tracking performance further assist you to easily shoot a portrait of a moving subject using AF-C even during continuous shooting, and even if the subject looks down and away from the camera, or is backlit with face in partial darkness. The A7 III's E-mount body supports Eye AF for A-mount lenses mounted via an adaptor.
Phase-detection AF can operate even when an A-mount lens is mounted to the Sony α7R III via an LA-EA3 adaptor that doesn't include a dedicated phase detection AF sensor. The 693-point focal-plane phase-detection AF system provides wide-area coverage, fast response, and high-performance tracking whether an A-mount or E-mount lens is attached.
With new shutter unit and image processing system refinements, the Sony A7 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. An electronic shutter allows silent, vibration-free shooting of wildlife when even slight noise can mean missing an ideal shot.
Greater buffer memory, system speed, and UHS-II support allow the A7 MK III to capture up to approx. 40 uncompressed RAW, 89 compressed RAW, or 177 JPEG images, in a continuous burst at 10fps. Fn menu/menu display access, setting changes and review playback can occur during data writing.
The 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.
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 color anomalies at the top and bottom of images shot at high shutter speeds, as well as exposure and color inconsistency between continuous shots, so you can take images indoors with more confidence.
Now more effective than ever for the α series, 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 stop-faster shutter speed, so the Sony A7 Mark III can take full advantage of its 24.2-megapixel and live-view image performance. Furthermore, it functions with A-mount lenses attached via mount adaptor, as well as E-mount lenses.
A 1200-zone live-view exposure analysis makes color analysis and metering precise. Focus information from the lens keeps AE control and image brightness consistent even when subject position or background brightness changes. Highlight and Entire Screen Average metering modes now join the Sony A7 Mark III's Multi, Center, and Spot metering modes. When the Focus Area parameter is set to Flexible Spot or Expand Flexible Spot, the metering spot can be linked to the focus area.
The Sony A7 III camera provides two media slots for SD card (UHS-II-compatible for fast data writing) and SD/MS card, 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.
Providing high resolution, contrast, and the ability to see live exposure, the approximately 2359K-dot XGA OLED viewfinder in the A7 III 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. Start-up 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.
A 3.0-type LCD touch screen with 922K dots on the Sony Alpha A7 III makes focus operation intuitive and instant. You can simply touch the monitor screen to specify a desired focus point with Touch Focus. Also, the Touch Pad function lets you drag the focus frame to another point with a fingertip on the LCD screen as you monitor the shot through the viewfinder. Additionally the LCD tilts up by as much as 107°, and down by as much as 41° providing a flexible viewing angle for low/high shots.
For extended periods of confident shooting, the NP-FZ100 battery has approximately 2.2 times the capacity of a NP-FW50 battery, 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.
The Sony 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
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.
Register up to 30 frequently used items on the new My Menu for instant recall. You can create and customize an optimal menu for your own convenience.
The Sony A7 III records High-resolution full-frame 4K movies with full-pixel readout without pixel binning that condenses approximately 2.4 times 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.t.
Supporting a wide range of HDR movie production needs, the Sony A7 III offers S-Log3, as well as S-Log2 gamma curves for more flexibility to express images through grading operation in post-production, and a new HLG (Hybrid Log-Gamma) picture profile for instant HDR workflow. Recorded movies played back on an HDR (HLG) compatible TV need no color grading to appear true-to-life, with no blocked shadows or blown highlights.  High flexibility to fine-tune images as desired (Color grading required)  Instant and high-quality image (Color grading not required)
An efficient combination of focal-plane phase-detection AF and contrast-detection AF accurately locks onto quickly moving subjects, then tracks them smoothly. 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.
The Sony A7 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 of a still from a movie, and Gamma Display Assist function, among others.
One-touch remote can turn a smartphone or tablet into a viewfinder/remote control. One-touch sharing transfers photos/videos to your device for social network site (SNS) sharing. Just install the 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.