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Sony A7 III vs Sony A6100

Portability
63
Imaging
74
Features
92
Overall
81
Sony Alpha A7 III front
 
Sony Alpha a6100 front
Portability
81
Imaging
70
Features
88
Overall
77

Sony A7 III vs Sony A6100 Key Specs

Sony A7 III
(Full Review)
  • 24MP - Full frame Sensor
  • 3" Tilting Screen
  • ISO 100 - 51200 (Boost to 204800)
  • Sensor based 5-axis Image Stabilization
  • 1/8000s Maximum Shutter
  • 3840 x 2160 video
  • Sony E Mount
  • 650g - 127 x 96 x 74mm
  • Introduced February 2018
  • Earlier Model is Sony A7 II
  • Replacement is Sony A7 IV
Sony A6100
(Full Review)
  • 24MP - APS-C Sensor
  • 3" Tilting Screen
  • ISO 100 - 32000 (Raise to 51200)
  • 3840 x 2160 video
  • Sony E Mount
  • 396g - 120 x 67 x 59mm
  • Released August 2019
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Sony A7 III vs Sony A6100 Overview

On this page, we will be matching up the Sony A7 III vs Sony A6100, former is a Pro Mirrorless while the latter is a Advanced Mirrorless and both of them are sold by Sony. The resolution of the A7 III (24MP) and the A6100 (24MP) is pretty well matched but the A7 III (Full frame) and A6100 (APS-C) boast different sensor size.

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The A7 III was manufactured 18 months earlier than the A6100 which makes them a generation away from one another. Each of these cameras have different body design with the Sony A7 III being a SLR-style mirrorless camera and the Sony A6100 being a Rangefinder-style mirrorless camera.

Before diving right into a more detailed comparison, here is a short view of how the A7 III grades against the A6100 when it comes to portability, imaging, features and an overall mark.

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Reasons to pick Sony A7 III over the Sony A6100

 A7 III A6100 

Reasons to pick Sony A6100 over the Sony A7 III

 A6100 A7 III 
ReleasedAugust 2019February 2018Newer by 18 months
Selfie screen Take selfies

Common features in the Sony A7 III and Sony A6100

 A7 III A6100 
Focus manually More precise focusing
Screen typeTiltingTiltingTilting screen
Screen dimensions3"3"Equal screen size
Screen resolution922k922kEqual screen resolution
Touch friendly screen Quickly navigate

Sony A7 III vs Sony A6100 Physical Comparison

If you are planning to travel with your camera, you will need to consider its weight and volume. The Sony A7 III features exterior measurements of 127mm x 96mm x 74mm (5.0" x 3.8" x 2.9") and a weight of 650 grams (1.43 lbs) and the Sony A6100 has sizing of 120mm x 67mm x 59mm (4.7" x 2.6" x 2.3") with a weight of 396 grams (0.87 lbs).

Examine the Sony A7 III vs Sony A6100 in our newest Camera plus Lens Size Comparison Tool. Camera Size Comparison with Lenses

Do not forget, the weight of an ILC will vary dependant on the lens you have attached at the time. The following is a front view measurement comparison of the A7 III vs the A6100.

Sony A7 III vs Sony A6100 size comparison

Looking at dimensions and weight, the portability grade of the A7 III and A6100 is 63 and 81 respectively.

Sony A7 III vs Sony A6100 top view buttons comparison

Sony A7 III vs Sony A6100 Sensor Comparison

Normally, it is hard to visualize the difference between sensor dimensions simply by reading through specs. The picture below will provide you a greater sense of the sensor sizing in the A7 III and A6100.

As you can plainly see, the 2 cameras have the same megapixel count albeit different sensor dimensions. The A7 III has the bigger sensor which should make getting shallow DOF easier. The more aged A7 III is going to be disadvantaged with regard to sensor tech.

Sony A7 III vs Sony A6100 sensor size comparison

Sony A7 III vs Sony A6100 Screen and ViewFinder

Sony A7 III vs Sony A6100 Screen and Viewfinder comparison
Photography Glossary

Photography Type Scores

Portrait Comparison

Sony A7 III Portrait photography advice
Sony A6100 Portrait photography advice
84
focusing manually
good megapixels (24MP)
sensor size is great (Full frame)
offers face detection focusing
supports RAW files
82
manual focus
decent megapixels (24MP)
sensor size is good (APS-C)
supports face detection focus
supports RAW formats
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Street Comparison

Sony A7 III Street photography advice
Sony A6100 Street photography advice
78
screen tilts
has image stabilization (Sensor based 5-axis)
sensor size is great (Full frame)
supports RAW files
supports focus via touch
weather sealing
above average high ISO (51,200)
79
has a tilting screen
sensor size is good (APS-C)
supports RAW formats
provides touch focus
very good ISO range (32,000)
lack of image stabilization
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Sports Comparison

Sports photography with Sony A7 III
Sports photography with Sony A6100
87
great max shutter speed (1/8,000s)
has image stabilization (Sensor based 5-axis)
good megapixels (24 megapixels)
sensor size is great (Full frame)
offers tracking autofocus
weather sealing
better than average battery pack (610 per charge)
supports phase detect AF
75
decent megapixels (24 megapixels)
sensor size is good (APS-C)
supports tracking autofocus
comes with phase detect auto focus
lack of image stabilization
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Travel Comparison

Sony A7 III as a Travel photography camera
Sony A6100 as a Travel photography camera
73
better than average battery pack (610 CIPA)
weather sealing
connects via bluetooth
supports focus via touch
good megapixels (24 megapixels)
does not offer selfie friendly display
86
connects via bluetooth
provides touch focus
decent megapixels (24 megapixels)
has built in flash
selfie friendly display
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Landscape Comparison

Sony A7 III Landscape photography features
Sony A6100 Landscape photography features
85
focusing manually
interchangeable lenses (Sony E mount)
screen size is good (3")
has image stabilization (Sensor based 5-axis)
good megapixels (24 megapixels)
sensor size is great (Full frame)
above average high ISO (51,200)
supports RAW files
weather sealing
better than average battery pack (610 shots)
two card slots
79
manual focus
change lenses (Sony E mount)
screen size is decent (3 inches)
decent megapixels (24 megapixels)
sensor size is good (APS-C)
very good ISO range (32,000)
supports RAW formats
lack of image stabilization
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Vlogging Comparison

Sony A7 III Vlogging information
Sony A6100 Vlogging information
36
touchscreen capability
has image stabilization (Sensor based 5-axis)
offers face detection focusing
good video quality (3840 x 2160 pxls)
comes with external mic socket
does not offer selfie friendly display
79
selfie friendly display
touch screen
supports face detection focus
video resolution high (3840 x 2160 pixels)
does have external mic port
lack of image stabilization
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Sony A7 III vs Sony A6100 Specifications

Detailed spec comparison table for Sony A7 III and Sony A6100
 Sony Alpha A7 IIISony Alpha a6100
General Information
Brand Sony Sony
Model type Sony Alpha A7 III Sony Alpha a6100
Category Pro Mirrorless Advanced Mirrorless
Introduced 2018-02-27 2019-08-28
Body design SLR-style mirrorless Rangefinder-style mirrorless
Sensor Information
Chip Bionz X Bionz X
Sensor type BSI-CMOS CMOS
Sensor size Full frame APS-C
Sensor dimensions 35.8 x 23.8mm 23.5 x 15.6mm
Sensor area 852.0mm² 366.6mm²
Sensor resolution 24 megapixels 24 megapixels
Anti alias filter
Aspect ratio 3:2 and 16:9 1:1, 3:2 and 16:9
Max resolution 6000 x 4000 6000 x 4000
Max native ISO 51200 32000
Max enhanced ISO 204800 51200
Minimum native ISO 100 100
RAW images
Minimum enhanced ISO 50 -
Autofocusing
Manual focusing
Touch focus
AF continuous
AF single
Tracking AF
Selective AF
AF center weighted
Multi area AF
AF live view
Face detection AF
Contract detection AF
Phase detection AF
Total focus points 693 425
Lens
Lens mount type Sony E Sony E
Amount of lenses 121 121
Crop factor 1 1.5
Screen
Range of screen Tilting Tilting
Screen diagonal 3" 3"
Resolution of screen 922k dot 922k dot
Selfie friendly
Liveview
Touch display
Viewfinder Information
Viewfinder Electronic Electronic
Viewfinder resolution 2,359k dot 1,440k dot
Viewfinder coverage 100 percent 100 percent
Viewfinder magnification 0.78x 0.71x
Features
Min shutter speed 30s 30s
Max shutter speed 1/8000s 1/4000s
Continuous shutter speed 10.0 frames/s 11.0 frames/s
Shutter priority
Aperture priority
Manual exposure
Exposure compensation Yes Yes
Set WB
Image stabilization
Integrated flash
Flash distance no built-in flash 6.00 m (at ISO 100)
Flash settings no built-in flash Flash off, auto, fill flash, slow sync, rear sync, wireless, hi-speed
Hot shoe
AEB
WB bracketing
Exposure
Multisegment
Average
Spot
Partial
AF area
Center weighted
Video features
Supported video resolutions 3840 x 2160 (30p, 24p) 1920 x 1080 (120p, 60p, 60i, 24p), 1440 x 1080 (30p), 640 x 480 (30p) 3840 x 2160 @ 30p / 100 Mbps, XAVC S, MP4, H.264, Linear PCM
Max video resolution 3840x2160 3840x2160
Video format MPEG-4, AVCHD, XAVC S, H.264 MPEG-4, XAVC S, H.264
Mic jack
Headphone jack
Connectivity
Wireless Built-In Built-In
Bluetooth
NFC
HDMI
USB USB 3.1 Gen 1 (5 GBit/sec) Yes
GPS None None
Physical
Environment seal
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 650g (1.43 pounds) 396g (0.87 pounds)
Physical dimensions 127 x 96 x 74mm (5.0" x 3.8" x 2.9") 120 x 67 x 59mm (4.7" x 2.6" x 2.3")
DXO scores
DXO Overall rating 96 not tested
DXO Color Depth rating 25.0 not tested
DXO Dynamic range rating 14.7 not tested
DXO Low light rating 3730 not tested
Other
Battery life 610 images 420 images
Form of battery Battery Pack Battery Pack
Battery ID NP-FZ100 NP-FW50
Self timer Yes (2 or 10 sec; continuous (3 or 5 exposures)) Yes
Time lapse feature
Storage media SD/SDHC/SDXC, Memory Stick Duo/Pro Duo/Pro-HG Duo SD/SDHC/SDXC + Memory Stick Pro Duo
Storage slots 2 1
Pricing at release $1,998 $748