Sony FX3 vs Sony a9 III
Sony FX3 vs Sony a9 III
When comparing Sony a9 III and Sony FX3, which one is better?
1. Weight Comparison
Weight is really important when it comes to cameras, since you'll have to be able to hold it for long periods of times and carry it around with you. Sony a9 III is the lighter camera at 617 g compared to the weight of Sony FX3 at 715 g. This means that a9 III weighs 13.71% less than FX3.
Winner: Sony a9 III
Regarding weight: A heavy camera can be cumbersome to carry with you and might also make your wrists hurt from handling the camera for long periods of time. Just make sure the camera you choose to buy is not too heavy when combined with your lens of choice.
2. Sensor Type Comparison
Both FX3 and a9 III use the same sensor type — CMOS — meaning that no camera in this comparison has an advantage over the other in this regard.
Winner: Tied
Regarding sensor type: Digital cameras feature two different sensor types; CMOS and CCD.
3. Lens Mount
Both the Sony FX3 and Sony a9 III use the same lens mount; the Sony E. This means that you can use the same lenses on both cameras, as long as they cover the full sensor. Full format lenses will work on all cameras with the same mount.
Winner: Tied
4. Internal Raw Video Support
Neither Sony a9 III or Sony FX3 features internal raw video recording.
Winner: Tied — Neither have this feature
Regarding internal raw video: The ability to record raw video internally is becoming more and more common in cinema cameras, and this may or may not be an advantage depending on how you shoot. While raw offers the most flexibility, it also requires more powerful editing computers, faster memory cards and more storage.
5. External RAW Video Support
Both Sony FX3 and Sony a9 III supports external raw video recording.
Winner: Tied — both have this feature
Regarding external raw video recording: External raw video recording means that an external recorder, such as the Atomos Ninja V, can be used to record raw video using HDMI or SDI outputs from the camera to the recorder.
Specifications
Full specifications table of Sony FX3 and Sony a9 III:
| Sony FX3 | Sony a9 III | |
 |  | |
| Brand | Sony | Sony |
| Weight | 715 g | 617 g |
| Sensor Type | CMOS | CMOS |
| Internal Video Bit Depth | 10 bit | Missing |
| Dynamic Range | 13 stopp | Missing |
| Lens Mount | Sony E | Sony E |
| Resolutions | Missing | 3840x2160 |
| Shutter Type | Rolling Shutter | Global Shutter |
| Storage | SD UHS-II, SD UHS-I, CFexpress Type A | SD UHS-II, SD UHS-I, CFexpress Type A |
| Wi-Fi | Yes | Yes |
| Film Camera or Still Camera | Cinema | Stills |
| Digital or analog | Digital | Digital |
| Bluetooth | Yes | Yes |
| Maximum Video Resolution | 3840x2160 (4K Ultra HD) | 3840x2160 (4K Ultra HD) |
| Sensor Readout Speed | 8.7 ms | Missing |
| Internal Raw Video | Hayır | Hayır |
| Sensor Size | 35.7 x 18.8 mm | Missing |
| Stabilization | Yes | Yes |
| Otomatik odaklama | Evet | Evet |
| Color Depth | 14 bit | Missing |
| Built-in ND Filter | No | No |
| Color | Grey | Black |
| Megapiksel | 12.1 MP | 24.6 MP |
| Crop Factor | 1x | 1x |
| Streaming over USB | Yes | Yes |
| Image Output Formats | JPEG, RAW, HEIF | JPEG, RAW, HEIF |
| Autofocus | Phase Detection Autofocus, Contrast Detection Autofocus | Phase Detection Autofocus, Contrast Detection Autofocus |
| HDMI-utgång | Ja | Ja |
| Sensor Format | Full Frame | Full Frame |
| External RAW Video Recording | Yes | Yes |