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Sony A7R IV vs Sony FX3

Portability
62
Imaging
81
Features
93
Overall
85
Sony Alpha A7R IV front
 
Sony FX3 front
Portability
62
Imaging
65
Features
92
Overall
75

Sony A7R IV vs Sony FX3 Key Specs

Sony A7R IV
(Full Review)
  • 61MP - Full frame Sensor
  • 3" Tilting Screen
  • ISO 100 - 32000 (Bump to 102800)
  • Sensor based 5-axis Image Stabilization
  • No Anti-Alias Filter
  • 1/8000s Maximum Shutter
  • 3840 x 2160 video
  • Sony E Mount
  • 665g - 129 x 96 x 78mm
  • Launched July 2019
  • Succeeded the Sony A7R III
  • Successor is Sony A7R V
Sony FX3
(Full Review)
  • 12MP - Full frame Sensor
  • 3.00" Fully Articulated Screen
  • ISO 80 - 102400 (Bump to 409600)
  • Sensor based 5-axis Image Stabilization
  • 1/8000s Maximum Shutter
  • 3840 x 2160 video
  • Sony E Mount
  • 716g - 130 x 78 x 85mm
  • Revealed February 2021
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Sony A7R IV vs Sony FX3 Overview

Below, we will be evaluating the Sony A7R IV versus Sony FX3, both Pro Mirrorless digital cameras and both of them are produced by Sony. There exists a considerable gap between the resolutions of the A7R IV (61MP) and FX3 (12MP) but they come with the exact same sensor size (Full frame).

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The A7R IV was unveiled 19 months earlier than the FX3 which makes the cameras a generation away from one another. Both the cameras come with different body type with the Sony A7R IV being a SLR-style mirrorless camera and the Sony FX3 being a Rangefinder-style mirrorless camera.

Before we go through a detailed comparison, below is a quick overview of how the A7R IV scores vs the FX3 with respect to portability, imaging, features and an overall mark.

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Reasons to pick Sony A7R IV over the Sony FX3

 A7R IV FX3 

Reasons to pick Sony FX3 over the Sony A7R IV

 FX3 A7R IV 
RevealedFebruary 2021July 2019Newer by 19 months
Screen typeFully articulatedTiltingFully Articulating screen
Selfie screen Easy selfies

Common features in the Sony A7R IV and Sony FX3

 A7R IV FX3 
Manually focus More exact focus
Screen dimension3"3.00"Identical screen size
Screen resolution1440k1440kThe same screen resolution
Touch screen Quickly navigate

Sony A7R IV vs Sony FX3 Physical Comparison

For anybody who is aiming to travel with your camera, you are going to need to take into account its weight and volume. The Sony A7R IV provides exterior dimensions of 129mm x 96mm x 78mm (5.1" x 3.8" x 3.1") along with a weight of 665 grams (1.47 lbs) whilst the Sony FX3 has sizing of 130mm x 78mm x 85mm (5.1" x 3.1" x 3.3") with a weight of 716 grams (1.58 lbs).

See the Sony A7R IV versus Sony FX3 in our brand new Camera plus Lens Size Comparison Tool. Camera Size Comparison with Lenses

Take into account, the weight of an ILC will vary dependant on the lens you are utilising during that time. Following is the front view sizing comparison of the A7R IV compared to the FX3.

Sony A7R IV vs Sony FX3 size comparison

Considering dimensions and weight, the portability grade of the A7R IV and FX3 is 62 and 62 respectively.

Sony A7R IV vs Sony FX3 top view buttons comparison

Sony A7R IV vs Sony FX3 Sensor Comparison

Typically, it is very hard to visualise the gap between sensor dimensions simply by checking specifications. The pic here might offer you a much better sense of the sensor sizes in the A7R IV and FX3.

Plainly, both the cameras have got the exact same sensor measurements albeit not the same resolution. You can expect the Sony A7R IV to resolve extra detail having an extra 49MP. Higher resolution can also let you crop shots much more aggressively. The more aged A7R IV is going to be behind when it comes to sensor technology.

Sony A7R IV vs Sony FX3 sensor size comparison

Sony A7R IV vs Sony FX3 Screen and ViewFinder

Sony A7R IV vs Sony FX3 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Sony A7R IV as a Portrait photography camera
Sony FX3 as a Portrait photography camera
88
manual focus
excellent sensor resolution (61MP)
big sensor size (Full frame)
provides face detect focusing
supports RAW files
71
focusing manually
great sensor size (Full frame)
comes with face detect autofocus
delivers RAW files
low resolution sensor (12 megapixels)
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Street Comparison

Sony A7R IV Street photography details
Sony FX3 Street photography details
79
has a tilting screen
built in image stabilization (Sensor based 5-axis)
big sensor size (Full frame)
supports RAW files
offers touch focus
weather sealing
great high ISO (32,000)
76
built in image stabilization (Sensor based 5-axis)
great sensor size (Full frame)
delivers RAW files
includes touch to focus
weather proof
good high ISO (102,400)
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Sports Comparison

Sports photography with Sony A7R IV
Sports photography with Sony FX3
90
high shutter speed (1/8,000s)
built in image stabilization (Sensor based 5-axis)
excellent sensor resolution (61MP)
big sensor size (Full frame)
provides tracking focus
weather sealing
better than average battery pack (670 CIPA)
sensor has phase detect AF
76
max shutter speed is good (1/8,000 seconds)
built in image stabilization (Sensor based 5-axis)
great sensor size (Full frame)
comes with tracking focus
weather proof
better than average battery life (600 per charge)
has phase detect autofocus
low resolution sensor (12MP)
Photography Glossary

Travel Comparison

Travel photography with Sony A7R IV
Travel photography with Sony FX3
74
better than average battery pack (670 CIPA)
weather sealing
connects via bluetooth
offers touch focus
excellent sensor resolution (61 megapixels)
screen isn't selfie friendly
71
better than average battery life (600 shots)
weather proof
supports bluetooth
includes touch to focus
selfie friendly display
low resolution sensor (12MP)
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Landscape Comparison

Landscape photography with Sony A7R IV
Landscape photography with Sony FX3
88
manual focus
change lenses (Sony E mount)
decent sized screen (3")
built in image stabilization (Sensor based 5-axis)
excellent sensor resolution (61MP)
big sensor size (Full frame)
doesnt have anti-alias filter
great high ISO (32,000)
supports RAW files
weather sealing
better than average battery pack (670 shots)
2 card slots
77
focusing manually
change lenses (Sony E mount)
nice screen size (3.00")
built in image stabilization (Sensor based 5-axis)
great sensor size (Full frame)
good high ISO (102,400)
delivers RAW files
weather proof
better than average battery life (600 per charge)
has dual storage slots
low resolution sensor (12 megapixels)
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Vlogging Comparison

Sony A7R IV Vlogging factors
Sony FX3 Vlogging factors
37
touchscreen capability
built in image stabilization (Sensor based 5-axis)
provides face detect focusing
video res high (3840 x 2160 pxls)
includes mic support
screen isn't selfie friendly
77
selfie friendly display
touch screen
built in image stabilization (Sensor based 5-axis)
comes with face detect autofocus
video res high (3840 x 2160 pixels)
has microphone jack
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Sony A7R IV vs Sony FX3 Specifications

Detailed spec comparison table for Sony A7R IV and Sony FX3
 Sony Alpha A7R IVSony FX3
General Information
Brand Name Sony Sony
Model Sony Alpha A7R IV Sony FX3
Type Pro Mirrorless Pro Mirrorless
Launched 2019-07-16 2021-02-23
Body design SLR-style mirrorless Rangefinder-style mirrorless
Sensor Information
Processor Bionz X -
Sensor type BSI-CMOS BSI-CMOS
Sensor size Full frame Full frame
Sensor measurements 35.8 x 23.8mm 35.6 x 23.8mm
Sensor area 852.0mm² 847.3mm²
Sensor resolution 61 megapixel 12 megapixel
Anti aliasing filter
Aspect ratio 1:1, 4:3, 3:2 and 16:9 3:2 and 16:9
Highest Possible resolution 9504 x 6336 4240 x 2832
Maximum native ISO 32000 102400
Maximum enhanced ISO 102800 409600
Min native ISO 100 80
RAW photos
Min enhanced ISO 50 50
Autofocusing
Manual focus
Touch focus
Continuous autofocus
Single autofocus
Autofocus tracking
Selective autofocus
Center weighted autofocus
Autofocus multi area
Autofocus live view
Face detection autofocus
Contract detection autofocus
Phase detection autofocus
Number of focus points 567 759
Lens
Lens mounting type Sony E Sony E
Available lenses 121 187
Crop factor 1 1
Screen
Range of screen Tilting Fully articulated
Screen diagonal 3 inches 3.00 inches
Screen resolution 1,440k dot 1,440k dot
Selfie friendly
Liveview
Touch functionality
Viewfinder Information
Viewfinder Electronic None
Viewfinder resolution 5,760k dot -
Viewfinder coverage 100 percent -
Viewfinder magnification 0.78x -
Features
Minimum shutter speed 30s 30s
Fastest shutter speed 1/8000s 1/8000s
Continuous shutter speed 10.0 frames per second 10.0 frames per second
Shutter priority
Aperture priority
Manual exposure
Exposure compensation Yes Yes
Set white balance
Image stabilization
Integrated flash
Flash range no built-in flash no built-in flash
Flash options Flash off, Autoflash, Fill-flash, Slow Sync., Rear Sync., Red-eye reduction, Wireless, Hi-speed sync. no built-in flash
External flash
AEB
White balance bracketing
Fastest flash sync 1/250s -
Exposure
Multisegment
Average
Spot
Partial
AF area
Center weighted
Video features
Supported video resolutions 3840 x 2160 @ 30p / 100 Mbps, XAVC S, MP4, H.264, Linear PCM 3840 x 2160 @ 120p / 280 Mbps, XAVC S, MP4, H.265, Linear PCM 3840 x 2160 @ 100p / 280 Mbps, XAVC S, MP4, H.265, Linear PCM 3840 x 2160 @ 60p / 200 Mbps, XAVC S, MP4, H.265, Linear PCM 3840 x 2160 @ 50p / 200 Mbps, XAVC S, MP4, H.265, Linear PCM 3840 x 2160 @ 30p / 140 Mbps, XAVC S, MP4, H.265, Linear PCM 3840 x 2160 @ 25p / 140 Mbps, XAVC S, MP4, H.265, Linear PCM 3840 x 2160 @ 24p / 100 Mbps, XAVC S, MP4, H.265, Linear PCM 1920 x 1080 @ 120p / 100 Mbps, XAVC S, MP4, H.264, Linear PCM 1920 x 1080 @ 100p / 100 Mbps, XAVC S, MP4, H.264, Linear PCM 1920 x 1080 @ 60p / 50 Mbps, XAVC S, MP4, H.264, Linear PCM 1920 x 1080 @ 50p / 50 Mbps, XAVC S, MP4, H.264, Linear PCM 1920 x 1080 @ 25p / 50 Mbps, XAVC S, MP4, H.264, Linear PCM 1920 x 1080 @ 24p / 50 Mbps, XAVC S, MP4, H.264, Linear PCM
Maximum video resolution 3840x2160 3840x2160
Video file format MPEG-4, XAVC S, H.264 MPEG-4, XAVC S, XAVC HS, XAVC S-1, H.264, H.265
Microphone input
Headphone input
Connectivity
Wireless Built-In Built-In
Bluetooth
NFC
HDMI
USB USB 3.1 Gen 1(5 GBit/sec) USB 3.2 Gen 1 (5 GBit/sec)
GPS None None
Physical
Environment seal
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 665g (1.47 pounds) 716g (1.58 pounds)
Dimensions 129 x 96 x 78mm (5.1" x 3.8" x 3.1") 130 x 78 x 85mm (5.1" x 3.1" x 3.3")
DXO scores
DXO Overall score 99 85
DXO Color Depth score 26.0 24.2
DXO Dynamic range score 14.8 13.4
DXO Low light score 3344 3900
Other
Battery life 670 photos 600 photos
Form of battery Battery Pack Battery Pack
Battery model NP-FZ100 NP-FZ100
Self timer Yes Yes (2 or 10 sec; continuous (3 or 5 exposures))
Time lapse feature With downloadable app
Storage media Dual SD/SDHC/SDXC (UHS-II compatible) Dual SD/CFexpress Type A slots
Storage slots Two Two
Launch price $3,498 $3,900