Sony's latest α7 III features a new 24.2 megapixel back-illuminated sensor with a whooping 15 stops of dynamic range, comparable to the Sony α7R III released in the fall of 2017.
α7 III also shares the same capture rate as α7R III, up to 10 fps with either the electronic or mechanical shutter.
The first feature where α7 III pull ahead of α7R III is the high end ISO range, with a standard 100 - 51,200 expandable to as low as 50 and as high as 204,800, whereas the α7R III. standard range tops at 32,000 and expands till 102,400.
The α7 III auto-focus system has Fast Hybrid AF with 693 phase-detection and 425 contrast-detection AF points that covers 93% of the image frame—a system much like Sony's α9.
According to Sony, α7 III is almost twice as fast in low-light focusing and tracking photo subjects, compared to α7 II.
- 24.2MP 35-mm full-frame CMOS sensor with back-illuminated design
- Sensitivity range up to ISO 51,200 (expandable to ISO 50-204,800 for stills)
- Fast Hybrid AF with 693 phase-detection and 425 contrast-detection AF points
- High-speed continuous shooting of up to 10fps with AF/AE tracking
- 4K HDR movie recording capability
- Lens Compatibility: Sony E-mount lenses
- Sensor Type: 35 mm full frame (35.6 × 23.8 mm), Exmor R® CMOS sensor
- Number Of Pixels (Effective): Approx. 24.2 megapixels
- ISO Sensitivity (Recommended Exposure Index):
- Still images: ISO 100-51200 (ISO numbers from ISO 50 to ISO 204800 can be set as expanded ISO range.), AUTO (ISO 100-12800, selectable lower limit and upper limit),
- Movies: ISO 100-51200 equivalent (ISO numbers up to ISO 102400 can be set as expanded ISO range.),
- AUTO (ISO 100-12800, selectable lower limit and upper limit)
- Battery Life (Still Images): Approx. 610 shots (Viewfinder) / approx. 710 shots (LCD monitor) (CIPA standard)
- Viewfinder Type: 1.3 cm (0.5 type) electronic viewfinder (color), XGA OLED
- Display Type: 2.95 inch (3.0-type) wide type TFT