Sony a7 III Overview
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The Sony a7 III is a 24MP full frame mirrorless camera that incorporates many of the features and improvements found in the a7R III. Primary among these are a BSI sensor, along with the larger capacity 'Z' battery, AF joystick and the company's impressive EyeAF feature. Its 693-point AF system offers 93% frame coverage. Continuous shooting is offered at up to 10 fps with mechanical shutter, and 5-axis in-body stabilization claims a 5.0 stop shutter speed advantage.
Video recorded at 4K/24p is taken from a 6K region of the sensor, while 30p shooting comes from a roughly 5K region with a 1.2x crop. The camera offers both S-Log2 and S-Log3 gamma curves for shooting wide dynamic range scenes or Hybrid Log Gamma for playing back directly on high dynamic range displays.
The new larger-capacity battery boasts 710 shots per charge. The a7 III uses the same 2.36m dot OLED viewfinder as its predecessor, giving a 1024 x 768 pixel view, rather than the higher-res version in the a7R III. The viewfinder is complemented by an articulated 3" 921k-dot LCD.
| Body type | SLR-style mirrorless |
|---|---|
| Max resolution | 6000 x 4000 |
| Effective pixels | 24 megapixels |
| Sensor size | Full frame (35.8 x 23.8 mm) |
| Sensor type | BSI-CMOS |
| ISO | Auto, 100-51200 |
| Lens mount | Sony E |
| Focal length mult. | 1× |
| Articulated LCD | Tilting |
| Screen size | 3″ |
| Screen dots | 921,600 |
| Max shutter speed | 1/8000 sec |
| Format | MPEG-4, AVCHD, XAVC S, H.264 |
| Storage types | SD/SDHC/SDXC, Memory Stick Duo/Pro Duo/Pro-HG Duo |
| USB | USB 3.2 Gen 1 (5 GBit/sec) |
| Weight (inc. batteries) | 650 g (1.43 lb / 22.93 oz) |
| Dimensions | 127 x 96 x 74 mm (5 x 3.78 x 2.91″) |
| GPS | None |
The Sony a7 III is a well-priced, well-rounded camera suitable for all kinds of photography. Twenty-four megapixels of resolution is more than sufficient for most tasks, and the 693-point autofocus system and 10 frames-per-second burst speed help the a7 III keep up with fast action. Video quality and feature set is another strong point, though some operational lag, a slightly low-resolution viewfinder and unintuitive video autofocus may turn off some users.
Good for: Generalist photographers, wedding, event and action shooters and those that need high quality video.
Not so good for: Those that need more resolution for detailed scenes or large prints, those that need ultimate build quality for harsh shooting conditions.
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