Sony FX30 vs Sony a7S III

This is a full comparison between the cameras Sony FX30 and Sony a7S III. We compare them by looking at the categories you see below.

Sony FX30

Sony a7S III

Manufacturing

These cameras are both manufactured by Sony.

Sony FX30 were released 2022 and Sony a7S III was released 2020. That is a 2 years difference. In tech, this period can be of interest since technology is always improving, etc.

Camera	Released
Sony FX30	2022
Sony a7S III	2020

Type of camera

Both these cameras are Mirrorless cameras. No difference there.

Sensors / crop factor

These cameras have different sensors. Sony FX30 has a "Sony APS-C"-sensor while Sony a7S III has a "Sony Full Frame"-sensor, and their difference in sensors will also affect the crop factor and experience focal length. See the table below.

Camera	Focal length, 50mm f/1.8 **
Sony FX30	75 mm Sony APS-C sensor Crop factor/focal length multiplier by * 1.5
Sony a7S III	50 mm Full-frame sensor No crop factor/focal length multiplier

** Experienced focal length when using a lens such as a common "50mm f/1.8"

Learn more about crop factor and focal length multiplier here:
Camera selection can affect the focal length (Sony)

Resolution

Sony FX30 has a 26 MP (Megapixels) resolution while Sony a7S III has 12 MP. If we break down this in more detail this is the data behind the numbers:

Camera	Megapixels
Sony FX30	26 MP 25560576 pixels 6192 x 4128
Sony a7S III	12 MP 12007680 pixels 4240 x 2832

Sony FX30 has a 113 % larger resolution than Sony a7S III. This could give you more details in the picture but also a possibility to crop more in the pictures, afterward while editing the pictures, if needed that is.

ISO range

Sony a7S III has a larger ISO-range than Sony FX30. Sony a7S III has an ISO range that stretches from 80 to 102400 while Sony FX30 has 100 to 32000.

Camera	ISO Range
Sony FX30	100-32000
Sony a7S III	80-102400

Autofocus and lens compatibility

Both of these cameras have a built-in autofocus motor. Some lenses, that support autofocus, do not have an autofocus motor of their own but this won't cause any problems with these two cameras.

Here is a complete overview of which lenses work with each camera:
Lens compatibility chart for Sony FX30
Lens compatibility chart for Sony a7S III

Pictures per second

Depending on what you are shooting the FPS, or frames/pictures per second, can definitely be of interest. Sony FX30 can shoot up to 1 pictures per seconds and Sony a7S III can shoot up to 10 pictures per seconds.

Camera	FPS (Frames per second)
Sony FX30	1
Sony a7S III	10

Ability to record movies

It is becoming more and more popular to record movies with digital cameras.

It is only one of these two cameras that support recording movies and movie clips and that is Sony a7S III. Sadly, the Sony FX30 does not support this.

Weight

The weight of the camera can be an extremely important factor, especially if the camera is about to be used, or carried around, for several hours at a time.

Sony a7S III weighs 699 gr (equal to 1.54 lb) which is 8% heavier than Sony FX30 and its 646 gr (or 1.42 lb).

Camera	Weight
Sony FX30	646 gr 1.42 lb
Sony a7S III	699 gr 1.54 lb