Sony has unveiled an a7 III full-frame mirrorless camera for its predecessor, which has been around for nearly 4 years. This is Sony’s flagship camera aimed at reaching out to full-frame cameras. Not only does the BSI-CMOS sensor, the a7 III also offers 693-point focal length similar to the a9, plus the 10-fps shooting capability like the a7R III.
The use of the Exmor R sensor (BSI-CMOS) on the a7 series shows that Sony wants to bring superior image quality to the lineup that they call the most basic. Sony’s all-new 24.2 MP sensor, the BIONZ X image processor combined with Front End LSI’ pre-processor that enabled many of the feature and speed improvements in the a7R III.
The useful ISO extends to 51,200 over the previous generation and can be up to 204,800, the dynamic range up to 15-stop. Instead of using only the 397-point AF system of the a7R III, Sony has decided to use a 693-point AF system with 93% coverage of the frame, including 425 focus-points, more accurate. As such, the 4D FOCUS has been adopted by Sony for the lowest priced a7 series.
Sony has also introduced interactive features on the touch screen like its recent models, including the a6500, a9 or a7R III. Of course, the difference from the more advanced a7 line lies in the screen resolution of only 921k pixels. Control system inherits completely from a7R III, including the eight-way joystick.
About the ability to save images, the a7 III can capture 177 JPEG (standard), 89 uncompressed RAW images or 40 uncompressed RAW images. Owing to the 24.2 MP sensor, the a7 III captures more images than the a7R III, but the buffer is only one-third the a9. Continuous shooting speed of the a7 III maximum of 10 frames per second applies to both mechanical and electronic shutter modes.
Sony a7 III upgraded to a 4K (3840 x 1260 pixels) video capability expected from the Mark II generation, supporting the standard 4K HDR Hybrid Log-Gamma and many profile picture options when shooting like S-Log2, S-Log3. It also supports Full HD 120fps video at 100 Mbps. Based on the a7R III’s body, the Sony a7 III is also equipped with two memory card slots, one of which supports a standard UHS-II SD slot for up to 300 MBytes / sec read and write speeds. Z-pin (NP-FZ100), 3.1 Gb (5 Gbps) USB-C communication that supports high-speed data transfer and battery charging.
Sony a7 III is expected to be available in the market from April 10, 2018, at a reference price of $1,999 for the camera body and $2,199 for a 28-70mm f/3.5-5.6 FE lens. The pre-orders will be starts from February 28 in various stores such as Amazon and BHphoto.
Sony a7 III Specifications
- Dimensions of 127 x 96 x 74 mm
- Weight of 650g
- Touch Screen TFT-LCD Tilt Display of 3 inches
- 24 megapixels BSI-CMOS Sensor
- Maximum resolution of 6000×4000 pixels
- Bionz X Processor
- Auto ISO 100-25600 to 204800
- 4K UHD recording 3840 x 2160 pixels @ 30 fps.
- Autofocus 693
- Viewfinder coverage of 100%
- Shutter speed – Min. 30 sec. Max. 1/8000 sec
- Continuous Shooting Speed – 10 fps
- Connectivity of Wi-Fi, NFC, USB 3.1 Gen 1, Microphone port, Headphone port, mini HDMI port, SD/SDHC/SDXC, Memory Stick Duo/Pro Duo/Pro-HG Duo
- NP-FZ100 Battery up to 610 shots