Sony FX30 vs Sony a7 III

This is a full comparison between the cameras Sony FX30 and Sony a7 III. We compare them by looking at the categories you see below.

Manufacturing

These cameras are both manufactured by Sony.

Sony FX30 were released 2022 and Sony a7 III was released 2018. That is a 4 years difference. In tech, this period can be of interest since technology is always improving, etc.

Camera Released
Sony FX30 2022
Sony a7 III 2018

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 a7 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 a7 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 a7 III has 24 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 a7 III 24 MP
24000000 pixels
6000 x 4000

Sony FX30 has a 7 % larger resolution than Sony a7 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 a7 III has a larger ISO-range than Sony FX30. Sony a7 III has an ISO range that stretches from 100 to 51200 while Sony FX30 has 100 to 32000.

Camera ISO Range
Sony FX30 100-32000
Sony a7 III 100-51200

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 a7 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 a7 III can shoot up to 10 pictures per seconds.

Camera FPS (Frames per second)
Sony FX30 1
Sony a7 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 a7 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 a7 III weighs 650 gr (equal to 1.43 lb) which is 1% heavier than Sony FX30 and its 646 gr (or 1.42 lb).

Camera Weight
Sony FX30 646 gr
1.42 lb
Sony a7 III 650 gr
1.43 lb

Sony FX30 vs Sony a7 III Specs

Below you will find the complete and detailed technical specs for both Sony FX30 and Sony a7 III, next to each other. Each category of data is a link to an article covering the subject, giving you a deeper understanding so you can better understand the strengths and weaknesses of the two camera models.

Product
Sony FX30
Sony a7 III
Name Sony FX30 Sony a7 III
Manufacturer Sony Sony
Release Date and Price
Sony FX30
Sony a7 III
Release Year 2022 2018
Release Date 2022-09-28 2018-02-27
MSRP 1799 USD 1999 USD
Buy it today
Camera Type
Sony FX30
Sony a7 III
Camera Type Mirrorless Mirrorless
Sensor
Sony FX30
Sony a7 III
Sensor Size APS-C (approx 23.5 x 15.6 mm) Full Frame (approx 36 x 24 mm)
Sensor Type BSI-CMOS BSI-CMOS
Resolution 6192 x 4128 pixels 6000 x 4000 pixels
Megapixels 26 MP 24 MP
Image Processor BIONZ XR Bionz X
Image
Sony FX30
Sony a7 III
ISO Range 100 - 32000 100 - 51200
White Balance Presets 8 11
Custom White Balance Yes Yes
Image Stabilization Yes
(Sensor-Shift (5-axis))
Yes
(Sensor-Shift)
Image Stabilization CIPA Rating 5.5 stops 5 stops
Uncompressed format RAW RAW
Optics & Focus
Sony FX30
Sony a7 III
Autofocus Motor Yes Yes
Autofocus Phase Detect
Multi Area
Center
Selective Single Point
Tracking
Single
Continuous
Touch
Face Detection
LiveView
Contract Detect (sensor)
Phase Detect
Multi Area
Center
Selective Single Point
Tracking
Single
Continuous
Touch
Face Detection
LiveView
Focus Points 759 693
Lens Mount Sony E

See Compatible Lenses
Sony E

See Compatible Lenses
Focal Length Multiplier APS-C Sensor (1.5x)
1.5x multiplier
Example:
24 mm becomes 36 mm
50 mm becomes 75 mm
100 mm becomes 150 mm
200 mm becomes 300 mm
Full frame
No multiplier
Example:
24 mm remains 24 mm
50 mm remains 50 mm
100 mm remains 100 mm
200 mm remains 200 mm
Screen & Viewfinder
Sony FX30
Sony a7 III
Articulated LCD Fully articulated Tilting
Screen size 3” 3”
Screen dots N/A 921600
Touch screen Yes Yes
Screen type N/A N/A
Live view Yes Yes
Viewfinder Type No Viewfinder Electronic
Viewfinder Coverage 100%
Viewfinder Magnification 0.78x
Viewfinder Resolution 0 2359296
Photography features
Sony FX30
Sony a7 III
Frames per second 1 fps 10 fps
Minimum Shutter Speed 30 seconds 30 seconds
Maximum Shutter Speed 1/8000 seconds 1/8000 seconds
Built-in Flash No No
Built-in Flash Range N/A N/A
External Flash Yes Yes
Self-Timer Yes Yes
Time-lapse No No
Metering modes Multi
Center Weighted
Highlight Weighted
Spot
Partial
Average
Multi
Center Weighted
Highlight Weighted
Spot
Average
Exposure Compensation N/A +/- 5 (at 1/3 EV, 1/2 EV steps)
Videography features
Sony FX30
Sony a7 III
Video recording No Yes
Video format N/A MPEG4
H.264
XAVC-S
AVCHD
Video resolution N/A 1920 x 1080
3840 x 2160
Built-in Microphone Yes Yes
Built-in Speakers Yes Yes
Storage
Sony FX30
Sony a7 III
Memory Card Compact Flash Express
SD/SDHC
Memory Stick Pro Duo
SD/SDHC
Connectivity
Sony FX30
Sony a7 III
HDMI Output Yes Yes
Microphone Port Yes Yes
Headphone Port Yes Yes
Wireless Yes
Built-in (IEEE 802.11a/b/g/n/ac)
Yes
Built-in (with NFC and wireless control via PlayMemories Mobile app)
Remote Control Supported (no further information) Wired
GPS No No
Body & Dimensions
Sony FX30
Sony a7 III
Enviromentally sealed No Yes
Battery Battery Pack Battery Pack
Battery Details NP-FZ100
NP-FZ100 lithium-ion battery and charger
Battery Life (CIPA) 570 shots 710 shots
Width 78 mm 127 mm
Height 130 mm 96 mm
Depth 85 mm 74 mm
Weight 646 gram 650 gram