Sony Alpha A9 Mark III with a 24MP Global Shutter Sensor
DxO Mark has released the sensor test results for the Sony Alpha A9 Mark III global shutter mirrorless camera, and the scores fell short of top-tier expectations. The A9 III’s global shutter sensor, while showing excellent characteristics with zero rolling shutter, extreme reading speeds, impressive AF tracking performance, and up to 120fps shooting with AF tracking, was anticipated to face some challenges, particularly in dynamic range performance, which is reflected in the test scores.
Sony A9 III DxO Mark Scores
This graph shows the Dynamic Range measurements of the A9 III in various ISO values compared to the A9 Mark II, and the Canon EOS R3.
{https://cameradecision.com/img/uploads/a93dxograph.jpg|Sony A9 III Sensor Dynamic Range Measurements, Image Credit: dxomark.com
Below you can find a comparison table of these three cameras:
| FEATURE and SPECS COMPARISON | |  |  |  |
| Model | Sony Alpha A9 Mark III | Sony Alpha A9 Mark II | Canon EOS R3 |
| Sensor Resolution | 24.6 MP | 24.0 MP | 24.0 MP |
| Announced Date | 2023-11-07 | 2019-10-03 | 2021-09-14 |
| Camera Type | Pro Mirrorless | Pro Mirrorless | Pro Mirrorless |
| Sensor Type | Global Shutter | Stacked BSI-CMOS | Stacked CMOS |
| Sensor Size | Full frame | Full frame | Full frame |
| Sensor Sensitivity | ISO 250 - 25600( expands to 250-51200) | ISO 100 - 51200( expands to 50 - 204800) | ISO 100 - 102400( expands to 50 - 204800) |
| Lens Mount | Sony E | Sony E | Canon RF |
| Image Stabil. | Sensor-shift ( up to 8.0 stops) | Sensor-shift ( up to 5.5 stops) | Sensor-shift ( up to 8.0 stops) |
| Eye Tracking Focus | | | |
| Weight | 678g | 678g | 1015g |
| Dimensions | 136 x 97 x 83mm | 129 x 96 x 76mm | 150 x 143 x 87mm |
| Weather Sealing | | | |
| Focus Points | 759 | 693 | 1053 |
| Animal Eye Tracking | | | |
| Focus Bracket | | | |
| Minimum Shutter | 30 sec | 30 sec | 30 sec |
| Maximum Shutter | 1/8000sec | 1/8000sec | 1/8000sec |
| Maximum Shutter Electronic | 1/80000 sec | 1/32000 sec | 1/64000 sec |
| Continuous Drive | 30.0fps | 10.0fps | 12.0fps |
| Max Video Reso | 3840 x 2160 | 3840 x 2160 | 6000 x 3164 |
| Video fps at Max | 120p,60p,50p,30p,25p,24p | 30p,25p,24p | 60p, 30p, 24p,23.98p |
| Video Formats | MPEG-4, AVCHD, H.264 | MPEG-4, AVCHD, H.264 | MPEG-4, H.264, H.265 |
| High Speed Video | 120fps | 120fps | 120fps |
| Storage Slot | 2 | 2 | 2 |
| UHS Support | UHS-II | UHS-II | UHS-II |
| Battery Life | 690 | 690 | 760 |
| Battery Model | NP-FZ100 | NP-FZ100 | LP-E19 |
| RAW Video | | | |
| Webcam | | | |
| Anti Flicker | | | |
| Microphone Port | | | |
| Headphone Port | | | |
| Wifi | | | |
| Weather Sealing | | | |
| Timelapse | | | |
| Screen Type | Fully articulated | Tilting | Fully articulated |
| Top LCD | | | |
| LCD Size | 3.20" | 3.00" | 3.20" |
| Screen dots | 2360000 | 1440000 | 4150000 |
| Touch Screen | | | |
| Viewfinder | | | |
| Viewfinder Type | Electronic | Electronic | Electronic |
| Viewfinder Coverage | 100% | 100% | 100% |
| Viewfinder Magnification | 0.9x | 0.78x | 0.76x |
| Viewfinder Resolution | 9,440,000 | 3,686,400 | 5,760,000 |
| NFC | | | |
| Selfie Friendly Screen | | | |
| AF Joystick | | | |
| Bluetooth | | | |
| Full-size HDMI Port | | | |
| Gyro data Stabilization | | | |
| Vehicle Tracking | | | |
| Eye Control AF | | | |
| Price | Amazon, B&H Photo | Amazon, B&H Photo | Amazon, B&H Photo |
The A9 III is the second most expensive camera in Sony’s lineup, priced at an MSRP of $5,999, just behind the Sony Alpha A1 at $6,499. The A1 is considered a more versatile option due to its 50MP stacked sensor, offering higher resolution and fewer compromises. Sony is expected to announce the A1 Mark II( and the Sony FE 28-70mm F2.0 GM lens) today—stay tuned for updates—which will feature the A9 III’s body while retaining the 50MP sensor, enhanced with improved processors and algorithms. It will be interesting to see how the new A1 II will compare against the A9 III.
