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Sony A7R III vs Sony TX66

Portability
63
Imaging
78
Features
93
Overall
84
Sony Alpha A7R III front
 
Sony Cyber-shot DSC-TX66 front
Portability
97
Imaging
42
Features
51
Overall
45

Sony A7R III vs Sony TX66 Key Specs

Sony A7R III
(Full Review)
  • 42MP - Full frame Sensor
  • 3" Tilting Display
  • ISO 100 - 32000 (Increase to 102400)
  • Sensor based 5-axis Image Stabilization
  • No Anti-Alias Filter
  • 1/8000s Max Shutter
  • 3840 x 2160 video
  • Sony E Mount
  • 657g - 127 x 96 x 74mm
  • Launched October 2017
  • Earlier Model is Sony A7R II
  • Successor is Sony A7R IV
Sony TX66
(Full Review)
  • 18MP - 1/2.3" Sensor
  • 3.3" Fixed Screen
  • ISO 80 - 12800
  • Optical Image Stabilization
  • 1920 x 1080 video
  • 26-130mm (F3.5-4.8) lens
  • 109g - 93 x 54 x 13mm
  • Announced February 2012
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Sony A7R III vs Sony TX66 Overview

Here, we will be reviewing the Sony A7R III versus Sony TX66, former being a Pro Mirrorless while the latter is a Ultracompact and they are both designed by Sony. There is a considerable difference between the image resolutions of the A7R III (42MP) and TX66 (18MP) and the A7R III (Full frame) and TX66 (1/2.3") posses totally different sensor measurements.

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The A7R III was announced 5 years later than the TX66 and that is quite a large difference as far as tech is concerned. Both cameras feature different body design with the Sony A7R III being a SLR-style mirrorless camera and the Sony TX66 being a Ultracompact camera.

Before going right into a more detailed comparison, here is a short summary of how the A7R III scores versus the TX66 in terms of portability, imaging, features and an overall grade.

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Reasons to pick Sony A7R III over the Sony TX66

 A7R III TX66 
AnnouncedOctober 2017February 2012More recent by 69 months
Screen typeTiltingFixed Tilting screen
Screen resolution1440k1230kCrisper screen (+210k dot)

Reasons to pick Sony TX66 over the Sony A7R III

 TX66 A7R III 
Screen size3.3"3"Bigger screen (+0.3")

Common features in the Sony A7R III and Sony TX66

 A7R III TX66 
Manual focus More precise focus
Selfie screen Absent selfie screen
Touch screen Quickly navigate

Sony A7R III vs Sony TX66 Physical Comparison

In case you're aiming to lug around your camera, you will need to factor in its weight and measurements. The Sony A7R III comes with physical dimensions of 127mm x 96mm x 74mm (5.0" x 3.8" x 2.9") and a weight of 657 grams (1.45 lbs) and the Sony TX66 has proportions of 93mm x 54mm x 13mm (3.7" x 2.1" x 0.5") having a weight of 109 grams (0.24 lbs).

Compare the Sony A7R III versus Sony TX66 in our brand 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 choose during that time. Following is a front view proportions comparison of the A7R III against the TX66.

Sony A7R III vs Sony TX66 size comparison

Taking into account size and weight, the portability rating of the A7R III and TX66 is 63 and 97 respectively.

Sony A7R III vs Sony TX66 top view buttons comparison

Sony A7R III vs Sony TX66 Sensor Comparison

Usually, it can be difficult to envision the contrast between sensor measurements only by reading through specifications. The visual below may offer you a much better sense of the sensor sizes in the A7R III and TX66.

To sum up, each of these cameras feature different resolutions and different sensor measurements. The A7R III using its bigger sensor will make shooting shallow depth of field easier and the Sony A7R III will give you more detail with its extra 24MP. Higher resolution will also enable you to crop pictures way more aggressively. The younger A7R III is going to have an edge in sensor tech.

Sony A7R III vs Sony TX66 sensor size comparison

Sony A7R III vs Sony TX66 Screen and ViewFinder

Sony A7R III vs Sony TX66 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Sony A7R III Portrait photography factors
Sony TX66 Portrait photography factors
86
manual focus
megapixel count great (42 megapixels)
sensor size is large (Full frame)
features face detect focusing
saves RAW formats
42
manual focus
good MP (18 megapixels)
comes with face detect autofocus
lack of manual mode
cannot use external flash
sensor is tiny (1/2.3")
lacks RAW support
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Street Comparison

Sony A7R III as a Street photography camera
Sony TX66 as a Street photography camera
79
screen tilts
has image stabilization (Sensor based 5-axis)
sensor size is large (Full frame)
saves RAW formats
features focus via touch
environment proofing
good ISO range (32,000)
64
built in image stabilization (Optical)
supports touch focus
no articulating screen
sensor is tiny (1/2.3")
lacks RAW support
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Sports Comparison

Sony A7R III Sports photography factors
Sony TX66 Sports photography factors
89
high shutter speed (1/8,000s)
has image stabilization (Sensor based 5-axis)
megapixel count great (42 megapixels)
sensor size is large (Full frame)
features tracking focus
environment proofing
good battery (650 shots)
supports phase detect AF
49
built in image stabilization (Optical)
good MP (18 megapixels)
comes with tracking focus
better than average battery pack (250 shots)
no shutter priority
sensor is tiny (1/2.3")
lacks phase detect autofocus
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Travel Comparison

Travel photography with Sony A7R III
Travel photography with Sony TX66
74
good battery (650 per charge)
environment proofing
connects via bluetooth
features focus via touch
megapixel count great (42MP)
display is not selfie friendly
72
better than average battery pack (250 per charge)
supports touch focus
good MP (18 megapixels)
has built in flash
relatively wide (26mm)
does not have Time Lapse mode
display is not selfie friendly
somewhat slow max aperture (f3.5)
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Landscape Comparison

Landscape photography with Sony A7R III
Landscape photography with Sony TX66
87
manual focus
switch lenses (Sony E mount)
nice screen size (3 inch)
has image stabilization (Sensor based 5-axis)
megapixel count great (42MP)
sensor size is large (Full frame)
doesnt have anti-alias filter
good ISO range (32,000)
saves RAW formats
environment proofing
good battery (650 per charge)
has dual storage slots
51
manual focus
relatively wide (26mm)
screen size is good (3.3 inch)
built in image stabilization (Optical)
good MP (18 megapixels)
better than average battery pack (250 shots)
can't switch lens (fixed lens mount)
somewhat slow max aperture (f3.5)
lack of manual mode
sensor is tiny (1/2.3")
lacks RAW support
does not have Time Lapse mode
Photography Glossary

Vlogging Comparison

Sony A7R III as a Vlogging camera
Sony TX66 as a Vlogging camera
37
touchscreen capability
has image stabilization (Sensor based 5-axis)
features face detect focusing
high res video (3840 x 2160 resolution)
comes with microphone jack
display is not selfie friendly
36
relatively wide (26mm)
touch screen
built in image stabilization (Optical)
comes with face detect autofocus
high quality video (1920 x 1080 pixels)
somewhat slow max aperture (f3.5)
display is not selfie friendly
does not have mic support
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Sony A7R III vs Sony TX66 Specifications

Detailed spec comparison table for Sony A7R III and Sony TX66
 Sony Alpha A7R IIISony Cyber-shot DSC-TX66
General Information
Manufacturer Sony Sony
Model type Sony Alpha A7R III Sony Cyber-shot DSC-TX66
Category Pro Mirrorless Ultracompact
Launched 2017-10-25 2012-02-28
Physical type SLR-style mirrorless Ultracompact
Sensor Information
Processor Bionz X BIONZ
Sensor type BSI-CMOS BSI-CMOS
Sensor size Full frame 1/2.3"
Sensor dimensions 35.9 x 24mm 6.17 x 4.55mm
Sensor surface area 861.6mm² 28.1mm²
Sensor resolution 42 megapixels 18 megapixels
Anti alias filter
Aspect ratio 3:2 and 16:9 4:3 and 16:9
Peak resolution 7952 x 5304 4896 x 3672
Highest native ISO 32000 12800
Highest enhanced ISO 102400 -
Min native ISO 100 80
RAW pictures
Min enhanced ISO 50 -
Autofocusing
Manual focusing
Autofocus touch
Autofocus continuous
Autofocus single
Autofocus tracking
Autofocus selectice
Autofocus center weighted
Multi area autofocus
Live view autofocus
Face detect focus
Contract detect focus
Phase detect focus
Total focus points 425 -
Cross type focus points - -
Lens
Lens mount type Sony E fixed lens
Lens zoom range - 26-130mm (5.0x)
Highest aperture - f/3.5-4.8
Macro focusing range - 1cm
Available lenses 121 -
Crop factor 1 5.8
Screen
Type of display Tilting Fixed Type
Display size 3 inch 3.3 inch
Resolution of display 1,440k dots 1,230k dots
Selfie friendly
Liveview
Touch friendly
Display technology - XtraFine TruBlack OLED display
Viewfinder Information
Viewfinder type Electronic None
Viewfinder resolution 3,686k dots -
Viewfinder coverage 100 percent -
Viewfinder magnification 0.78x -
Features
Min shutter speed 30 secs 30 secs
Max shutter speed 1/8000 secs 1/4000 secs
Continuous shutter rate 10.0 frames/s 10.0 frames/s
Shutter priority
Aperture priority
Manual mode
Exposure compensation Yes -
Change white balance
Image stabilization
Integrated flash
Flash distance no built-in flash 3.10 m
Flash modes Off, Auto, Fill-flash, Slow Sync, Rear Sync, Red-eye reduction, Wireless, Hi-speed sync Auto, On, Off, Slow Sync, Rear Slow Sync
Hot shoe
AE bracketing
WB bracketing
Exposure
Multisegment metering
Average metering
Spot metering
Partial metering
AF area metering
Center weighted metering
Video features
Supported video resolutions 3840 x 2160 (30p, 25p, 24p), 1920 x 1080 (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)
Highest video resolution 3840x2160 1920x1080
Video file format MPEG-4, AVCHD, XAVC S MPEG-4, AVCHD
Mic support
Headphone support
Connectivity
Wireless Built-In None
Bluetooth
NFC
HDMI
USB USB 3.1 Gen 1(5 GBit/sec) USB 2.0 (480 Mbit/sec)
GPS None None
Physical
Environment sealing
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 657g (1.45 pounds) 109g (0.24 pounds)
Physical dimensions 127 x 96 x 74mm (5.0" x 3.8" x 2.9") 93 x 54 x 13mm (3.7" x 2.1" x 0.5")
DXO scores
DXO Overall rating 100 not tested
DXO Color Depth rating 26.0 not tested
DXO Dynamic range rating 14.7 not tested
DXO Low light rating 3523 not tested
Other
Battery life 650 pictures 250 pictures
Style of battery Battery Pack Battery Pack
Battery ID 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 recording
Storage type Two SD/SDHC/SDXC slots (UHS-II support on one) Memory Stick Duo/Pro Duo/Pro-HG Duo, microSD/microSDHC
Card slots Two Single
Cost at release $2,800 $350