If it’s complicated for you to decide which of these mirrorless cameras to buy maybe this comparison between Sony A7S III VS Sony FX6 will help decide which camera suits your needs and which one to buy for your own work.
This comparison is about strengths and weaknesses because both the Sony A7S III and Sony FX6 are of such high quality. And choosing between them is obviously a huge to talk about the ergonomics and the features of each camera and the results of the side-by-side comparison.
Table of Contents
Body Differences
In terms of capabilities both have 10-bit all-eye codecs they all have superb autofocus performance professional audio options and fantastic image quality both are powerful professional video tools just in two different styles of the body.
the fx6 body is designed for video whereas the A7S III is a body style designed for still photography. They are different styles of cameras for video work so there are a few big advantages of each design though.
Menu
When it comes to menu system the FX6 uses same menu just like the Sony FX9 whereas the A7S III uses same design from Sony A1 system.
So for me the menu system on A7S III far better than FX6 and FX9 because its nice touches you can quickly access and change your autofocus settings.
Sensor
Because the FX6 has high frame rate options and possibility to do 4k 120 frames a second continuously with no crop and 240 frames a second in 1080p the FX6 with its native 4k sensor can work quicker that higher resolution 6k sensor.
Image Quality
When it comes to image quality if we pair those two cameras and look into Sony A7S III and Sony FX6 they both share the same sensor and the same processors. They both are very similar but the obvious difference between them is the ergonomics.
Both cameras have different sensor and processors and it means the cameras will have potentially quite different image quality.
Image Format
When it comes to image format there is a big difference the A7S III uses an mp4 wrapper which work easily in mac or windows whereas the FX6 uses XAVC format in an MXF wrapper just like the FX9 and the Sony FS7.
Dynamic Range
the dynamic range is the same on both cameras at 15 plus stops but low light is significantly better on the FX6 because of its larger pixels and its higher second sensitivity rating.
Viewfinder
The A7S III is a big advantage in the viewfinder the 9.44 million dot EVF is a fantastic one of the best I’ve ever used. It does have a flip-out screen even flexible as the screen on the FX6 which you can mount anywhere you want but there’s no viewfinder actually on the FX6 this is a big difference.
the screen of the FX6 is better for monitoring than A7S III but it doesn’t have the fantastic viewfinder of the A7S III.
Batteries
So, both cameras uses different batteries A7S III use NP-FZ100 and FX6 uses large BP-U Series that are significantly more expensive on FX6 but last longer and have larger capacity.
Conclusion
Sony FX6 has a larger body than A7S III also has the best variable ND system on the market and a reason to choice FX6 instead A7S III is because has two xlr ports and full audio controls, having xlrs on the body isa more reliable option.
|  | |
|---|---|---|
| Release Date | 28 July 2020 | December 2020 |
| Body Type | SLR Stile Mirrorless | Cinema Camera |
| Sensor type | BSI CMOS | Full Frame CMOS |
| Sensor Size | 35.6 x 23.8 mm | N/A |
| Sensor resolution | 4240 x 2832 | 1420 x 802 |
| Sensor pixels | 12 | 12.9 |
| Processor | BIONZ XR | |
| Color filter array | Primary color filter | |
| ISO | 80-102400 Expands to 40-409600 | Video 800 to 12,800 Extended 409,600 |
| Image stabilization | 5 axis 5.5 stop | Supplies stabilization metadata |
| Focus type | Fast Hybrid | Auto and Manual Focus |
| Focus points | 759 | 627 |
| Lens mount | Sony E | |
| Focal Length Multiplier | 1x | |
| Screen type | Fully Articulated LCD touch | |
| Screen size | 3.0″ | |
| Screen resolution | 1,440,000 dots | |
| Viewfinder type | Electronic Oled | |
| Viewfinder magnification | 0.91x | |
| Viewfinder resolution | 9,440,000 dots | |
| Coverage | 100% | |
| Shutter type | Electronic controlled vertical traverse focal plane | Electronic rolling |
| Shutter speed | Min 30 sec Max 1/8000 sec | 1/8000 to 1 sec |
| Continuous drive | 10.0 fps | N/A |
| Build in flash | NO | N/a |
| External flash | Yes | N/A |
| Sync Speed | 1/250 sec | N/A |
| Exposure compensation | +/- 5 at 1/3 EV, 1/2 EV steps | N/A |
| AE Bracketing | +/- 5 (3,5 frames at 1/3 EV, 1/2 EV, 2/3 EV, 1 EV steps | N/A |
| WB Bracketing | Yes | |
| Video resolution | 4k/120 Full HD 240 | |
| Log Gamma | S Log2, S Log3 | S-Log 3, |
| Video format | MPEG 4, XAVC S, XAVC HS, XAVC S-1, H.264, H.265 | XAVC-I, XAVC-L |
| Storage type | SD/CFexpress UHS-II, Type A dual slots | |
| Connectivity | USB 3.2 GEN 1/ 5GBit sec | |
| Ports | HDMI Microphone Headphone | |
| Wireless transmitter | 802.11b/g/n/ac 5GHz | 2.4/ 5 GHz, WI-FI, NFC |
| Bluetooth | Yes | |
| NFC | NO | |
| Battery life CIPA | 600 shoots | |
| Weight | 699g | 890 g |
| Dimensions | 129 x 97 x 81 mm | 15.29 x 11.61 x 11.4 cm |
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