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Sony A7S III vs Sony A6100

Portability
61
Imaging
65
Features
92
Overall
75
Sony Alpha A7S III front
 
Sony Alpha a6100 front
Portability
81
Imaging
70
Features
88
Overall
77

Sony A7S III vs Sony A6100 Key Specs

Sony A7S III
(Full Review)
  • 12MP - Full frame Sensor
  • 3" Fully Articulated Display
  • ISO 80 - 102400 (Push to 409600)
  • Sensor based 5-axis Image Stabilization
  • 1/8000s Maximum Shutter
  • 3840 x 2160 video
  • Sony E Mount
  • 699g - 129 x 97 x 81mm
  • Revealed July 2020
  • Succeeded the Sony A7S II
Sony A6100
(Full Review)
  • 24MP - APS-C Sensor
  • 3" Tilting Display
  • ISO 100 - 32000 (Expand to 51200)
  • 3840 x 2160 video
  • Sony E Mount
  • 396g - 120 x 67 x 59mm
  • Revealed August 2019
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Sony A7S III vs Sony A6100 Overview

Lets look more closely at the Sony A7S III versus Sony A6100, former being a Pro Mirrorless while the other is a Advanced Mirrorless and they are both built by Sony. There exists a substantial gap among the resolutions of the A7S III (12MP) and A6100 (24MP) and the A7S III (Full frame) and A6100 (APS-C) boast different sensor size.

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The A7S III was unveiled 11 months later than the A6100 so they are both of a similar age. Both of these cameras have different body design with the Sony A7S III being a SLR-style mirrorless camera and the Sony A6100 being a Rangefinder-style mirrorless camera.

Before getting straight to a more detailed comparison, here is a concise overview of how the A7S III grades versus the A6100 when it comes to portability, imaging, features and an overall rating.

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Reasons to pick Sony A7S III over the Sony A6100

 A7S III A6100 
RevealedJuly 2020August 2019Fresher by 11 months
Display typeFully articulatedTiltingFully Articulating display
Display resolution1440k922kCrisper display (+518k dot)

Reasons to pick Sony A6100 over the Sony A7S III

 A6100 A7S III 

Common features in the Sony A7S III and Sony A6100

 A7S III A6100 
Focus manually Very accurate focus
Display dimensions3"3"Equal display size
Selfie screen Both are selfie friendly
Touch display Easily navigate

Sony A7S III vs Sony A6100 Physical Comparison

For those who are intending to carry your camera often, you'll have to think about its weight and proportions. The Sony A7S III features exterior dimensions of 129mm x 97mm x 81mm (5.1" x 3.8" x 3.2") along with a weight of 699 grams (1.54 lbs) and the Sony A6100 has measurements of 120mm x 67mm x 59mm (4.7" x 2.6" x 2.3") having a weight of 396 grams (0.87 lbs).

Look at the Sony A7S III versus Sony A6100 in our completely new Camera plus Lens Size Comparison Tool. Camera Size Comparison with Lenses

Take into consideration, the weight of an ILC will differ based on the lens you are utilising at the time. Here is a front view size comparison of the A7S III and the A6100.

Sony A7S III vs Sony A6100 size comparison

Looking at dimensions and weight, the portability rating of the A7S III and A6100 is 61 and 81 respectively.

Sony A7S III vs Sony A6100 top view buttons comparison

Sony A7S III vs Sony A6100 Sensor Comparison

Quite often, its hard to visualize the contrast in sensor sizing simply by going through technical specs. The visual underneath will help give you a much better sense of the sensor dimensions in the A7S III and A6100.

As you can tell, the 2 cameras have different megapixels and different sensor sizing. The A7S III using its larger sensor is going to make getting shallow DOF less difficult and the Sony A6100 will provide extra detail having an extra 12MP. Greater resolution can also allow you to crop photos a bit more aggressively. The younger A7S III provides an edge when it comes to sensor tech.

Sony A7S III vs Sony A6100 sensor size comparison

Sony A7S III vs Sony A6100 Screen and ViewFinder

Sony A7S III vs Sony A6100 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Portrait photography with Sony A7S III
Portrait photography with Sony A6100
71
you can focus manually
sensor size is large (Full frame)
includes face detection autofocus
delivers RAW formats
low megapixels (12MP)
82
focusing manually
good megapixels (24 megapixels)
good sensor size (APS-C)
includes face detection autofocus
saves RAW files
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Street Comparison

Sony A7S III Street photography advice
Sony A6100 Street photography advice
76
built in image stabilization (Sensor based 5-axis)
sensor size is large (Full frame)
delivers RAW formats
boasts focus by touch
weather proof
above average high ISO (102,400)
79
screen tilts up and down
good sensor size (APS-C)
saves RAW files
provides touch to focus
good high ISO (32,000)
does not have image stabilization
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Sports Comparison

Sony A7S III Sports photography highlights
Sony A6100 Sports photography highlights
76
high shutter speed (1/8,000 seconds)
built in image stabilization (Sensor based 5-axis)
sensor size is large (Full frame)
includes tracking autofocus
weather proof
good battery life (600 per charge)
sensor has phase detect autofocus
low megapixels (12 megapixels)
75
good megapixels (24MP)
good sensor size (APS-C)
includes tracking autofocus
comes with phase detect autofocus
does not have image stabilization
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Travel Comparison

Travel photography with Sony A7S III
Travel photography with Sony A6100
70
good battery life (600 per charge)
weather proof
supports bluetooth
boasts focus by touch
screen is selfie friendly
low megapixels (12 megapixels)
86
connects via bluetooth
provides touch to focus
good megapixels (24 megapixels)
flash built-in
screen is selfie friendly
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Landscape Comparison

Sony A7S III Landscape photography factors
Sony A6100 Landscape photography factors
77
you can focus manually
change lenses (Sony E mount)
decent sized screen (3")
built in image stabilization (Sensor based 5-axis)
sensor size is large (Full frame)
above average high ISO (102,400)
delivers RAW formats
weather proof
good battery life (600 shots)
two card slots
low megapixels (12MP)
79
focusing manually
switch lenses (Sony E mount)
screen size is good (3")
good megapixels (24 megapixels)
good sensor size (APS-C)
good high ISO (32,000)
saves RAW files
does not have image stabilization
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Vlogging Comparison

Vlogging with Sony A7S III
Vlogging with Sony A6100
77
screen is selfie friendly
touchscreen capability
built in image stabilization (Sensor based 5-axis)
includes face detection autofocus
video res high (3840 x 2160 resolution)
includes external mic socket
79
screen is selfie friendly
touchscreen
includes face detection autofocus
high quality video (3840 x 2160 pxls)
does have external mic jack
does not have image stabilization
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Sony A7S III vs Sony A6100 Specifications

Detailed spec comparison table for Sony A7S III and Sony A6100
 Sony Alpha A7S IIISony Alpha a6100
General Information
Make Sony Sony
Model Sony Alpha A7S III Sony Alpha a6100
Type Pro Mirrorless Advanced Mirrorless
Revealed 2020-07-21 2019-08-28
Body design SLR-style mirrorless Rangefinder-style mirrorless
Sensor Information
Powered by Bionz XR Bionz X
Sensor type BSI-CMOS CMOS
Sensor size Full frame APS-C
Sensor dimensions 35.6 x 23.8mm 23.5 x 15.6mm
Sensor area 847.3mm² 366.6mm²
Sensor resolution 12 megapixels 24 megapixels
Anti aliasing filter
Aspect ratio 3:2 and 16:9 1:1, 3:2 and 16:9
Highest resolution 4240 x 2832 6000 x 4000
Highest native ISO 102400 32000
Highest boosted ISO 409600 51200
Minimum native ISO 80 100
RAW data
Minimum boosted ISO 50 -
Autofocusing
Manual focus
Touch focus
Continuous AF
AF single
Tracking AF
Selective AF
AF center weighted
AF multi area
AF live view
Face detect AF
Contract detect AF
Phase detect AF
Number of focus points 759 425
Lens
Lens mount Sony E Sony E
Number of lenses 121 121
Crop factor 1 1.5
Screen
Range of display Fully articulated Tilting
Display sizing 3 inches 3 inches
Resolution of display 1,440k dot 922k dot
Selfie friendly
Liveview
Touch function
Viewfinder Information
Viewfinder Electronic Electronic
Viewfinder resolution 9,440k dot 1,440k dot
Viewfinder coverage 100 percent 100 percent
Viewfinder magnification 0.91x 0.71x
Features
Slowest shutter speed 30 seconds 30 seconds
Maximum shutter speed 1/8000 seconds 1/4000 seconds
Continuous shooting speed 10.0 frames/s 11.0 frames/s
Shutter priority
Aperture priority
Manually set exposure
Exposure compensation Yes Yes
Custom WB
Image stabilization
Built-in flash
Flash range 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
External flash
AE bracketing
White balance bracketing
Exposure
Multisegment exposure
Average exposure
Spot exposure
Partial exposure
AF area exposure
Center weighted exposure
Video features
Supported video resolutions 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 3840 x 2160 @ 30p / 100 Mbps, XAVC S, MP4, H.264, Linear PCM
Highest video resolution 3840x2160 3840x2160
Video file format MPEG-4, XAVC S, XAVC HS, XAVC S-1, H.264, H.265 MPEG-4, XAVC S, H.264
Mic input
Headphone input
Connectivity
Wireless Built-In Built-In
Bluetooth
NFC
HDMI
USB USB 3.2 Gen 1 (5 GBit/sec) Yes
GPS None None
Physical
Environment seal
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 699 gr (1.54 pounds) 396 gr (0.87 pounds)
Physical dimensions 129 x 97 x 81mm (5.1" x 3.8" x 3.2") 120 x 67 x 59mm (4.7" x 2.6" x 2.3")
DXO scores
DXO All around score 85 not tested
DXO Color Depth score 23.6 not tested
DXO Dynamic range score 13.3 not tested
DXO Low light score 2993 not tested
Other
Battery life 600 photos 420 photos
Battery format Battery Pack Battery Pack
Battery model NP-FZ100 NP-FW50
Self timer Yes (2 or 10 sec; continuous (3 or 5 exposures)) Yes
Time lapse feature With downloadable app
Storage media Dual SD/CFexpress Type A slots SD/SDHC/SDXC + Memory Stick Pro Duo
Storage slots Dual One
Price at launch $3,499 $748