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Sony A7 III vs Sony TX20

Portability
63
Imaging
74
Features
92
Overall
81
Sony Alpha A7 III front
 
Sony Cyber-shot DSC-TX20 front
Portability
96
Imaging
39
Features
50
Overall
43

Sony A7 III vs Sony TX20 Key Specs

Sony A7 III
(Full Review)
  • 24MP - Full frame Sensor
  • 3" Tilting Screen
  • ISO 100 - 51200 (Raise 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
  • Old Model is Sony A7 II
  • Later Model is Sony A7 IV
Sony TX20
(Full Review)
  • 16MP - 1/2.3" Sensor
  • 3" Fixed Display
  • ISO 125 - 3200
  • Optical Image Stabilization
  • 1920 x 1080 video
  • 25-100mm (F3.5-4.6) lens
  • 133g - 96 x 56 x 18mm
  • Revealed February 2012
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Sony A7 III vs Sony TX20 Overview

Let's look closer at the Sony A7 III and Sony TX20, one being a Pro Mirrorless and the other is a Ultracompact and they are both created by Sony. There is a huge difference among the sensor resolutions of the A7 III (24MP) and TX20 (16MP) and the A7 III (Full frame) and TX20 (1/2.3") feature different sensor sizing.

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The A7 III was brought out 6 years later than the TX20 and that is a fairly significant gap as far as camera tech is concerned. The two cameras come with different body type with the Sony A7 III being a SLR-style mirrorless camera and the Sony TX20 being a Ultracompact camera.

Before we go in to a step-by-step comparison, below is a short synopsis of how the A7 III grades against the TX20 in the way of portability, imaging, features and an overall grade.

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Reasons to pick Sony A7 III over the Sony TX20

 A7 III TX20 
RevealedFebruary 2018February 2012More recent by 74 months
Display typeTiltingFixed Tilting display

Reasons to pick Sony TX20 over the Sony A7 III

 TX20 A7 III 

Common features in the Sony A7 III and Sony TX20

 A7 III TX20 
Manually focus More precise focusing
Display dimension3"3"Identical display measurement
Display resolution922k922kThe same display resolution
Selfie screen No selfie screen
Touch display Easily navigate

Sony A7 III vs Sony TX20 Physical Comparison

For anyone who is intending to lug around your camera often, you need to consider its weight and size. The Sony A7 III offers outside measurements of 127mm x 96mm x 74mm (5.0" x 3.8" x 2.9") with a weight of 650 grams (1.43 lbs) whilst the Sony TX20 has specifications of 96mm x 56mm x 18mm (3.8" x 2.2" x 0.7") having a weight of 133 grams (0.29 lbs).

Take a look at the Sony A7 III and Sony TX20 in the latest Camera and Lens Size Comparison Tool. Camera Size Comparison with Lenses

Take into consideration, the weight of an Interchangeable Lens Camera will vary based on the lens you have attached at the time. The following is the front view dimension comparison of the A7 III versus the TX20.

Sony A7 III vs Sony TX20 size comparison

Taking into consideration size and weight, the portability score of the A7 III and TX20 is 63 and 96 respectively.

Sony A7 III vs Sony TX20 top view buttons comparison

Sony A7 III vs Sony TX20 Sensor Comparison

In many cases, its difficult to picture the contrast in sensor measurements simply by seeing specifications. The visual underneath may offer you a far better sense of the sensor measurements in the A7 III and TX20.

Plainly, the 2 cameras posses different megapixels and different sensor measurements. The A7 III featuring a larger sensor is going to make getting shallower DOF less difficult and the Sony A7 III will show extra detail having its extra 8MP. Greater resolution can also make it easier to crop photos somewhat more aggressively. The more modern A7 III should have a benefit when it comes to sensor tech.

Sony A7 III vs Sony TX20 sensor size comparison

Sony A7 III vs Sony TX20 Screen and ViewFinder

Sony A7 III vs Sony TX20 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Portrait photography with Sony A7 III
Portrait photography with Sony TX20
84
has manual focus
megapixel count good (24MP)
sensor size is large (Full frame)
includes face detection focus
saves RAW files
40
has manual focus
MP count decent (16MP)
supports face detect focus
manual mode not available
external flash not possible
sensor is tiny (1/2.3")
has no RAW files
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Street Comparison

Street photography with Sony A7 III
Street photography with Sony TX20
78
has a tilting screen
has image stabilization (Sensor based 5-axis)
sensor size is large (Full frame)
saves RAW files
provides touch focus
environment proofing
good high ISO (51,200)
67
has image stabilization (Optical)
includes focus via touch
environment proof
no moving screen
sensor is tiny (1/2.3")
has no RAW files
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Sports Comparison

Sony A7 III Sports photography details
Sony TX20 Sports photography details
87
maximum shutter speed is high (1/8,000 seconds)
has image stabilization (Sensor based 5-axis)
megapixel count good (24 megapixels)
sensor size is large (Full frame)
includes tracking autofocus
environment proofing
better than average battery (610 shots)
comes with phase detect auto focus
50
has image stabilization (Optical)
MP count decent (16 megapixels)
supports tracking focus
environment proof
great battery life (250 per charge)
no shutter priority
sensor is tiny (1/2.3")
has no phase detect auto focus
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Travel Comparison

Travel photography with Sony A7 III
Travel photography with Sony TX20
73
better than average battery (610 shots)
environment proofing
has bluetooth
provides touch focus
megapixel count good (24MP)
display isn't selfie friendly
72
great battery life (250 shots)
environment proof
includes focus via touch
MP count decent (16MP)
built-in flash
pretty wide (25mm)
does not have Time Lapse recording
does not have a selfie friendly screen
slow maximum aperture (f3.5)
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Landscape Comparison

Sony A7 III Landscape photography advice
Sony TX20 Landscape photography advice
85
has manual focus
switch lenses (Sony E mount)
nice screen size (3 inches)
has image stabilization (Sensor based 5-axis)
megapixel count good (24 megapixels)
sensor size is large (Full frame)
good high ISO (51,200)
saves RAW files
environment proofing
better than average battery (610 shots)
has dual storage slots
52
has manual focus
pretty wide (25mm)
nice screen size (3 inch)
has image stabilization (Optical)
MP count decent (16 megapixels)
environment proof
great battery life (250 CIPA)
cannot change lenses (fixed lens mount)
slow maximum aperture (f3.5)
manual mode not available
sensor is tiny (1/2.3")
has no RAW files
does not have Time Lapse recording
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Vlogging Comparison

Sony A7 III Vlogging advice
Sony TX20 Vlogging advice
36
touchscreen enabled
has image stabilization (Sensor based 5-axis)
includes face detection focus
high quality video (3840 x 2160 pixels)
does have external mic jack
display isn't selfie friendly
35
pretty wide (25mm)
screen is touchscreen
has image stabilization (Optical)
supports face detect focus
video resolution high (1920 x 1080 resolution)
slow maximum aperture (f3.5)
does not have a selfie friendly screen
does not have mic support
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Sony A7 III vs Sony TX20 Specifications

Detailed spec comparison table for Sony A7 III and Sony TX20
 Sony Alpha A7 IIISony Cyber-shot DSC-TX20
General Information
Brand Sony Sony
Model Sony Alpha A7 III Sony Cyber-shot DSC-TX20
Type Pro Mirrorless Ultracompact
Introduced 2018-02-27 2012-02-28
Physical type SLR-style mirrorless Ultracompact
Sensor Information
Processor Chip Bionz X BIONZ
Sensor type BSI-CMOS BSI-CMOS
Sensor size Full frame 1/2.3"
Sensor dimensions 35.8 x 23.8mm 6.17 x 4.55mm
Sensor surface area 852.0mm² 28.1mm²
Sensor resolution 24 megapixel 16 megapixel
Anti aliasing filter
Aspect ratio 3:2 and 16:9 4:3 and 16:9
Highest Possible resolution 6000 x 4000 4608 x 3456
Maximum native ISO 51200 3200
Maximum enhanced ISO 204800 -
Lowest native ISO 100 125
RAW images
Lowest enhanced ISO 50 -
Autofocusing
Focus manually
AF touch
AF continuous
Single AF
AF tracking
AF selectice
Center weighted AF
Multi area AF
Live view AF
Face detection focusing
Contract detection focusing
Phase detection focusing
Number of focus points 693 -
Cross focus points - -
Lens
Lens mounting type Sony E fixed lens
Lens focal range - 25-100mm (4.0x)
Highest aperture - f/3.5-4.6
Macro focus range - 1cm
Total lenses 121 -
Focal length multiplier 1 5.8
Screen
Type of screen Tilting Fixed Type
Screen diagonal 3" 3"
Screen resolution 922 thousand dots 922 thousand dots
Selfie friendly
Liveview
Touch screen
Screen technology - XtraFine TruBlack TFT LCD
Viewfinder Information
Viewfinder type Electronic None
Viewfinder resolution 2,359 thousand dots -
Viewfinder coverage 100% -
Viewfinder magnification 0.78x -
Features
Minimum shutter speed 30s 4s
Fastest shutter speed 1/8000s 1/1600s
Continuous shutter rate 10.0 frames/s 10.0 frames/s
Shutter priority
Aperture priority
Expose Manually
Exposure compensation Yes -
Custom WB
Image stabilization
Integrated flash
Flash range no built-in flash 3.70 m
Flash options no built-in flash Auto, On, Off, Slow Sync
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) 1920 x 1080 (60 fps), 1440 x 1080 (60, 30 fps), 1280 x 720 (30 fps), 640 x 480 (30 fps)
Maximum video resolution 3840x2160 1920x1080
Video format MPEG-4, AVCHD, XAVC S, H.264 MPEG-4, AVCHD
Mic support
Headphone support
Connectivity
Wireless Built-In Eye-Fi Connected
Bluetooth
NFC
HDMI
USB USB 3.1 Gen 1 (5 GBit/sec) USB 2.0 (480 Mbit/sec)
GPS None None
Physical
Environmental sealing
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 650 grams (1.43 lb) 133 grams (0.29 lb)
Dimensions 127 x 96 x 74mm (5.0" x 3.8" x 2.9") 96 x 56 x 18mm (3.8" x 2.2" x 0.7")
DXO scores
DXO Overall score 96 not tested
DXO Color Depth score 25.0 not tested
DXO Dynamic range score 14.7 not tested
DXO Low light score 3730 not tested
Other
Battery life 610 images 250 images
Battery style Battery Pack Battery Pack
Battery model NP-FZ100 NP-BN
Self timer Yes (2 or 10 sec; continuous (3 or 5 exposures)) Yes (2 or 10 sec, Portrait 1/2)
Time lapse shooting
Storage type SD/SDHC/SDXC, Memory Stick Duo/Pro Duo/Pro-HG Duo SD/SDHC/SDXC/Memory Stick Duo/Memory Stick Pro Duo, Memory Stick Pro-HG Duo
Card slots 2 Single
Price at release $1,998 $330