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Sony A7S II vs Sony FX3

Portability
68
Imaging
61
Features
76
Overall
67
Sony Alpha A7S II front
 
Sony FX3 front
Portability
62
Imaging
65
Features
92
Overall
75

Sony A7S II vs Sony FX3 Key Specs

Sony A7S II
(Full Review)
  • 12MP - Full frame Sensor
  • 3" Tilting Screen
  • ISO 100 - 102400 (Bump to 409600)
  • Sensor based 5-axis Image Stabilization
  • 1/8000s Max Shutter
  • 3840 x 2160 video
  • Sony E Mount
  • 627g - 127 x 96 x 60mm
  • Revealed October 2015
  • Old Model is Sony A7S
  • Newer Model is Sony A7S III
Sony FX3
(Full Review)
  • 12MP - Full frame Sensor
  • 3.00" Fully Articulated Screen
  • ISO 80 - 102400 (Increase 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
  • Announced February 2021
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Sony A7S II vs Sony FX3 Overview

Below is a complete comparison of the Sony A7S II vs Sony FX3, both Pro Mirrorless cameras and both are designed by Sony. The resolution of the A7S II (12MP) and the FX3 (12MP) is relatively close and both cameras posses the same sensor size (Full frame).

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The A7S II was introduced 6 years prior to the FX3 and that is a fairly sizable difference as far as camera tech is concerned. Both cameras have different body design with the Sony A7S II being a SLR-style mirrorless camera and the Sony FX3 being a Rangefinder-style mirrorless camera.

Before diving straight to a thorough comparison, here is a quick introduction of how the A7S II grades vs the FX3 when considering portability, imaging, features and an overall grade.

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Reasons to pick Sony A7S II over the Sony FX3

 A7S II FX3 

Reasons to pick Sony FX3 over the Sony A7S II

 FX3 A7S II 
AnnouncedFebruary 2021October 2015More recent by 65 months
Screen typeFully articulatedTiltingFully Articulating screen
Screen resolution1440k1229kCrisper screen (+211k dot)
Selfie screen Take selfies
Touch friendly screen Quickly navigate

Common features in the Sony A7S II and Sony FX3

 A7S II FX3 
Manually focus More precise focus
Screen dimensions3"3.00"Equal screen size

Sony A7S II vs Sony FX3 Physical Comparison

When you are planning to lug around your camera regularly, you are going to need to factor its weight and proportions. The Sony A7S II has got outer dimensions of 127mm x 96mm x 60mm (5.0" x 3.8" x 2.4") along with a weight of 627 grams (1.38 lbs) while the Sony FX3 has measurements of 130mm x 78mm x 85mm (5.1" x 3.1" x 3.3") with a weight of 716 grams (1.58 lbs).

Look at the Sony A7S II vs Sony FX3 in our newest Camera & Lens Size Comparison Tool. Camera Size Comparison with Lenses

Remember that, the weight of an ILC will vary dependant on the lens you use at that moment. Following is a front view over all size comparison of the A7S II vs the FX3.

Sony A7S II vs Sony FX3 size comparison

Taking into account size and weight, the portability rating of the A7S II and FX3 is 68 and 62 respectively.

Sony A7S II vs Sony FX3 top view buttons comparison

Sony A7S II vs Sony FX3 Sensor Comparison

Usually, it is very tough to visualize the difference in sensor measurements simply by viewing specs. The graphic below will provide you a stronger sense of the sensor sizes in the A7S II and FX3.

As you can plainly see, the 2 cameras have the same sensor dimensions and the same exact megapixels so you can expect comparable quality of images but you may want to take the launch date of the cameras into account. The older A7S II will be behind in sensor innovation.

Sony A7S II vs Sony FX3 sensor size comparison

Sony A7S II vs Sony FX3 Screen and ViewFinder

Sony A7S II vs Sony FX3 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Sony A7S II Portrait photography information
Sony FX3 Portrait photography information
68
manual focus
big sensor size (Full frame)
includes face detection focus
supports RAW files
MP count low (12 megapixels)
71
you can focus manually
sensor size is great (Full frame)
offers face detect autofocus
exports RAW files
megapixel count low (12 megapixels)
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Street Comparison

Street photography with Sony A7S II
Street photography with Sony FX3
78
screen tilts up and down
built in image stabilization (Sensor based 5-axis)
big sensor size (Full frame)
supports RAW files
environment proof
above average ISO range (102,400)
76
has image stabilization (Sensor based 5-axis)
sensor size is great (Full frame)
exports RAW files
boasts focus via touch
environment sealing
great high ISO (102,400)
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Sports Comparison

Sony A7S II as a Sports photography camera
Sony FX3 as a Sports photography camera
58
maximum shutter speed is high (1/8,000 seconds)
built in image stabilization (Sensor based 5-axis)
big sensor size (Full frame)
includes tracking autofocus
environment proof
slow continuous shooting (5.0 frames/s)
MP count low (12MP)
bad battery pack (370 shots)
no phase detect auto focus
76
maximum shutter speed is high (1/8,000 seconds)
has image stabilization (Sensor based 5-axis)
sensor size is great (Full frame)
offers tracking focus
environment sealing
great battery power (600 per charge)
sensor has phase detect autofocus
megapixel count low (12MP)
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Travel Comparison

Sony A7S II Travel photography details
Sony FX3 Travel photography details
49
environment proof
bad battery pack (370 per charge)
MP count low (12MP)
screen isn't selfie friendly
71
great battery power (600 CIPA)
environment sealing
has bluetooth
boasts focus via touch
selfie friendly screen
megapixel count low (12MP)
Photography Glossary

Landscape Comparison

Landscape photography with Sony A7S II
Landscape photography with Sony FX3
71
manual focus
change lenses (Sony E mount)
screen size is good (3 inch)
built in image stabilization (Sensor based 5-axis)
big sensor size (Full frame)
above average ISO range (102,400)
supports RAW files
environment proof
MP count low (12MP)
bad battery pack (370 per charge)
77
you can focus manually
swap lenses (Sony E mount)
screen size is decent (3.00 inch)
has image stabilization (Sensor based 5-axis)
sensor size is great (Full frame)
great high ISO (102,400)
exports RAW files
environment sealing
great battery power (600 CIPA)
2 card slots
megapixel count low (12 megapixels)
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Vlogging Comparison

Sony A7S II as a Vlogging camera
Sony FX3 as a Vlogging camera
35
built in image stabilization (Sensor based 5-axis)
includes face detection focus
video resolution high (3840 x 2160 resolution)
includes external microphone socket
screen isn't selfie friendly
77
selfie friendly screen
touchscreen capability
has image stabilization (Sensor based 5-axis)
offers face detect autofocus
great video quality (3840 x 2160 pixels)
includes microphone support
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Sony A7S II vs Sony FX3 Specifications

Detailed spec comparison table for Sony A7S II and Sony FX3
 Sony Alpha A7S IISony FX3
General Information
Company Sony Sony
Model Sony Alpha A7S II Sony FX3
Type Pro Mirrorless Pro Mirrorless
Revealed 2015-10-12 2021-02-23
Physical type SLR-style mirrorless Rangefinder-style mirrorless
Sensor Information
Processor Bionz X -
Sensor type CMOS BSI-CMOS
Sensor size Full frame Full frame
Sensor measurements 35.6 x 23.8mm 35.6 x 23.8mm
Sensor area 847.3mm² 847.3mm²
Sensor resolution 12 megapixels 12 megapixels
Anti aliasing filter
Aspect ratio 3:2 and 16:9 3:2 and 16:9
Highest resolution 4240 x 2832 4240 x 2832
Highest native ISO 102400 102400
Highest boosted ISO 409600 409600
Minimum native ISO 100 80
RAW photos
Minimum boosted ISO 50 50
Autofocusing
Manual focus
AF touch
AF continuous
Single AF
AF tracking
Selective AF
AF center weighted
Multi area AF
AF live view
Face detection focusing
Contract detection focusing
Phase detection focusing
Number of focus points 169 759
Lens
Lens mounting type Sony E Sony E
Available lenses 121 187
Focal length multiplier 1 1
Screen
Type of screen Tilting Fully articulated
Screen size 3" 3.00"
Resolution of screen 1,229 thousand dots 1,440 thousand dots
Selfie friendly
Liveview
Touch operation
Viewfinder Information
Viewfinder Electronic None
Viewfinder resolution 2,359 thousand dots -
Viewfinder coverage 100% -
Viewfinder magnification 0.78x -
Features
Lowest shutter speed 30 secs 30 secs
Highest shutter speed 1/8000 secs 1/8000 secs
Continuous shooting rate 5.0fps 10.0fps
Shutter priority
Aperture priority
Expose Manually
Exposure compensation Yes Yes
Set WB
Image stabilization
Inbuilt flash
Flash range no built-in flash no built-in flash
Flash modes no built-in flash no built-in flash
Hot shoe
Auto exposure bracketing
WB bracketing
Exposure
Multisegment
Average
Spot
Partial
AF area
Center weighted
Video features
Video resolutions 4K (3840 x 2160 @ 30p/24p [60-100Mbps]), Full HD (1920 x 1080 @ 120p/60p/60i/30p/24p [50-100Mbps]), 720p (30p [16Mbps]) 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
Highest video resolution 3840x2160 3840x2160
Video data format MPEG-4, AVCHD, XAVC S MPEG-4, XAVC S, XAVC HS, XAVC S-1, H.264, H.265
Microphone support
Headphone support
Connectivity
Wireless Built-In Built-In
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 3.2 Gen 1 (5 GBit/sec)
GPS None None
Physical
Environmental sealing
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 627g (1.38 pounds) 716g (1.58 pounds)
Physical dimensions 127 x 96 x 60mm (5.0" x 3.8" x 2.4") 130 x 78 x 85mm (5.1" x 3.1" x 3.3")
DXO scores
DXO All around score 85 85
DXO Color Depth score 23.6 24.2
DXO Dynamic range score 13.3 13.4
DXO Low light score 2993 3900
Other
Battery life 370 pictures 600 pictures
Battery style Battery Pack Battery Pack
Battery model NP-FW50 NP-FZ100
Self timer Yes (2 or 10 sec; continuous (3 or 5 exposures)) Yes (2 or 10 sec; continuous (3 or 5 exposures))
Time lapse recording With downloadable app With downloadable app
Type of storage SD/SDHC/SDXC, Memory Stick Duo/Pro Duo/Pro-HG Duo Dual SD/CFexpress Type A slots
Card slots 1 Two
Launch price $2,767 $3,900