The backlit full-frame sensor has a resolution of 10.2 megapixels when shooting video and 15 degrees of dynamic range.
Compared to the A7S III, the FX3 includes some of the features found in more expensive cinema cameras in a smaller, lighter body.
One of the main differences between the FX3 and A7S III is the design The FX3 has the same A7S III camera body, but it’s slightly thicker and shorter.
The thickness is due to the presence of an active cooling system inside the camera that cools the interior parts during recording, allowing the camera to shoot for up to 13 hours without interruption. Even in warmer environments.
The shorter height is due to the removal of the electronic viewfinder, andThe FX3 is designed to be part of a platform, and as such has 5 bolt carrier, with three of them on top.
Sony has made several design changes compared to the A7S III, including the presence of a backlit recording button at the top, a joystick mounted on top, a zoom control around the shutter button, lights on the front and back, a sliding power switch, and improved shortcut buttons for the video workflow.
The FX3 comes with a top handle as part of the package, which includes an audio interface similar to the Sony XLR-K3M kit without the built-in microphone.
The audio interface has three microphone inputs, including two full-size XLR and one 3.5mm one, along with controls for tuning the microphone inputs.
The top handle uses two tripods and adds three of them, allowing you to mount other accessories, such as the outdoor display.
On the software side, the only major change in FX3 compared to the A7S III is the inclusion of S-Cinetone.
This video preset matches the settings found on other Sony cinema cameras, which are designed to give a cinematic look to your camera shots without having to deal with complications.
The FX3 is priced at about $ 3900, which is $ 400 more than the A7S III, and given that the A7S III focuses on a lot of videos, the FX3 looks like a slightly odd product in Sony’s lineup.
If video is the only use case, and you appreciate features like: S-Cinetone and the available audio interface, then FX3 may be a better option for you when it becomes available in mid-March.