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Sony TX20 vs Sony A57

Portability
96
Imaging
39
Features
50
Overall
43
Sony Cyber-shot DSC-TX20 front
 
Sony SLT-A57 front
Portability
64
Imaging
57
Features
85
Overall
68

Sony TX20 vs Sony A57 Key Specs

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
Sony A57
(Full Review)
  • 16MP - APS-C Sensor
  • 3" Fully Articulated Screen
  • ISO 100 - 16000 (Expand to 25600)
  • Sensor based Image Stabilization
  • 1920 x 1080 video
  • Sony/Minolta Alpha Mount
  • 618g - 132 x 98 x 81mm
  • Introduced September 2012
  • Older Model is Sony A55
  • Refreshed by Sony A58
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Sony TX20 vs Sony A57 Overview

Its time to take a closer look at the Sony TX20 vs Sony A57, former being a Ultracompact while the latter is a Entry-Level DSLR and both are manufactured by Sony. The image resolution of the TX20 (16MP) and the A57 (16MP) is pretty similar but the TX20 (1/2.3") and A57 (APS-C) have totally different sensor sizing.

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The TX20 was released 6 months before the A57 and they are both of a similar age. Both of the cameras have different body design with the Sony TX20 being a Ultracompact camera and the Sony A57 being a Compact SLR camera.

Before we go straight to a complete comparison, here is a quick synopsis of how the TX20 scores vs the A57 in the way of portability, imaging, features and an overall rating.

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Reasons to pick Sony TX20 over the Sony A57

 TX20 A57 
Screen resolution922k921kCrisper screen (+1k dot)
Touch screen Quickly navigate

Reasons to pick Sony A57 over the Sony TX20

 A57 TX20 
Screen typeFully ArticulatedFixed Fully Articulating screen
Selfie screen Take selfies

Common features in the Sony TX20 and Sony A57

 TX20 A57 
IntroducedFebruary 2012September 2012Similar age
Focus manually More accurate focusing
Screen dimensions3"3"Equal screen measurement

Sony TX20 vs Sony A57 Physical Comparison

If you're planning to carry your camera frequently, you're going to have to factor in its weight and dimensions. The Sony TX20 has outside measurements of 96mm x 56mm x 18mm (3.8" x 2.2" x 0.7") along with a weight of 133 grams (0.29 lbs) whilst the Sony A57 has dimensions of 132mm x 98mm x 81mm (5.2" x 3.9" x 3.2") along with a weight of 618 grams (1.36 lbs).

Compare the Sony TX20 vs Sony A57 in our newest Camera plus Lens Size Comparison Tool. Camera Size Comparison with Lenses

Keep in mind, the weight of an ILC will differ dependant on the lens you are utilising at the time. The following is a front view dimension comparison of the TX20 compared to the A57.

Sony TX20 vs Sony A57 size comparison

Considering size and weight, the portability score of the TX20 and A57 is 96 and 64 respectively.

Sony TX20 vs Sony A57 top view buttons comparison

Sony TX20 vs Sony A57 Sensor Comparison

Oftentimes, it can be hard to visualise the contrast between sensor sizing just by going over technical specs. The visual below should give you a stronger sense of the sensor sizing in the TX20 and A57.

As you can tell, both of these cameras have the same resolution albeit not the same sensor sizing. The TX20 has the tinier sensor which will make achieving shallow DOF more difficult.

Sony TX20 vs Sony A57 sensor size comparison

Sony TX20 vs Sony A57 Screen and ViewFinder

Sony TX20 vs Sony A57 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Sony TX20 Portrait photography features
Sony A57 Portrait photography features
40
you can focus manually
decent MP (16 megapixels)
has face detect focus
lack of manual exposure
external flash not possible
very small sensor (1/2.3")
does not have RAW format
74
has manual focus
good MP (16MP)
sensor size is good (APS-C)
offers face detection focusing
saves RAW files
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Street Comparison

Sony TX20 Street photography info
Sony A57 Street photography info
67
built in image stabilization (Optical)
includes focus by touch
weather sealing
no articulating screen
very small sensor (1/2.3")
does not have RAW format
75
screen articulates fully
built in image stabilization (Sensor based)
sensor size is good (APS-C)
saves RAW files
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Sports Comparison

Sony TX20 Sports photography information
Sony A57 Sports photography information
50
built in image stabilization (Optical)
decent MP (16MP)
has tracking focus
weather sealing
good battery (250 shots)
no shutter priority mode
very small sensor (1/2.3")
does not have phase detect auto focus
78
built in image stabilization (Sensor based)
good MP (16 megapixels)
sensor size is good (APS-C)
offers tracking autofocus
comes with phase detect AF
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Travel Comparison

Sony TX20 as a Travel photography camera
Sony A57 as a Travel photography camera
72
good battery (250 per charge)
weather sealing
includes focus by touch
decent MP (16 megapixels)
has built in flash
rather wide (25mm)
doesn't have Time Lapse recording
screen is not selfie friendly
slow maximum aperture (f3.5)
67
good MP (16MP)
has built in flash
display is selfie friendly
missing Timelapse function
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Landscape Comparison

Landscape photography with Sony TX20
Landscape photography with Sony A57
52
you can focus manually
rather wide (25mm)
screen is a decent size (3")
built in image stabilization (Optical)
decent MP (16 megapixels)
weather sealing
good battery (250 CIPA)
can't swap lenses (fixed lens mount)
slow maximum aperture (f3.5)
lack of manual exposure
very small sensor (1/2.3")
does not have RAW format
doesn't have Time Lapse recording
72
has manual focus
switch lenses (Sony/Minolta Alpha mount)
good sized screen (3")
built in image stabilization (Sensor based)
good MP (16MP)
sensor size is good (APS-C)
saves RAW files
missing Timelapse function
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Vlogging Comparison

Sony TX20 Vlogging info
Sony A57 Vlogging info
35
rather wide (25mm)
touchscreen
built in image stabilization (Optical)
has face detect focus
high quality video (1920 x 1080 pxls)
slow maximum aperture (f3.5)
screen is not selfie friendly
doesn't have mic support
77
display is selfie friendly
built in image stabilization (Sensor based)
offers face detection focusing
video res high (1920 x 1080 resolution)
does have external microphone port
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Sony TX20 vs Sony A57 Specifications

Detailed spec comparison table for Sony TX20 and Sony A57
 Sony Cyber-shot DSC-TX20Sony SLT-A57
General Information
Company Sony Sony
Model Sony Cyber-shot DSC-TX20 Sony SLT-A57
Class Ultracompact Entry-Level DSLR
Revealed 2012-02-28 2012-09-13
Body design Ultracompact Compact SLR
Sensor Information
Powered by BIONZ -
Sensor type BSI-CMOS CMOS
Sensor size 1/2.3" APS-C
Sensor measurements 6.17 x 4.55mm 23.5 x 15.6mm
Sensor surface area 28.1mm² 366.6mm²
Sensor resolution 16 megapixels 16 megapixels
Anti aliasing filter
Aspect ratio 4:3 and 16:9 3:2 and 16:9
Maximum resolution 4608 x 3456 4912 x 3264
Maximum native ISO 3200 16000
Maximum boosted ISO - 25600
Minimum native ISO 125 100
RAW data
Autofocusing
Focus manually
Touch to focus
Autofocus continuous
Autofocus single
Autofocus tracking
Autofocus selectice
Autofocus center weighted
Multi area autofocus
Live view autofocus
Face detect autofocus
Contract detect autofocus
Phase detect autofocus
Number of focus points - 15
Cross focus points - 3
Lens
Lens mount fixed lens Sony/Minolta Alpha
Lens focal range 25-100mm (4.0x) -
Highest aperture f/3.5-4.6 -
Macro focus distance 1cm -
Number of lenses - 143
Focal length multiplier 5.8 1.5
Screen
Display type Fixed Type Fully Articulated
Display sizing 3 inch 3 inch
Resolution of display 922k dot 921k dot
Selfie friendly
Liveview
Touch friendly
Display tech XtraFine TruBlack TFT LCD Xtra Fine TFT drive with TruBlack technology
Viewfinder Information
Viewfinder type None Electronic
Viewfinder resolution - 1,440k dot
Viewfinder coverage - 100 percent
Viewfinder magnification - 0.7x
Features
Slowest shutter speed 4s 30s
Maximum shutter speed 1/1600s 1/4000s
Continuous shooting speed 10.0 frames per second 12.0 frames per second
Shutter priority
Aperture priority
Manually set exposure
Exposure compensation - Yes
Set white balance
Image stabilization
Inbuilt flash
Flash range 3.70 m 10.00 m (@ ISO 100)
Flash settings Auto, On, Off, Slow Sync Auto, On, Off, Red-Eye, Slow Sync, High Speed Sync, Rear Curtain, Fill-in, Wireless
External flash
AEB
WB bracketing
Maximum flash sync - 1/160s
Exposure
Multisegment metering
Average metering
Spot metering
Partial metering
AF area metering
Center weighted metering
Video features
Video resolutions 1920 x 1080 (60 fps), 1440 x 1080 (60, 30 fps), 1280 x 720 (30 fps), 640 x 480 (30 fps) 1920 x 1080 (60p, 24p), 1440 x 1080 (30p), 640 x 480 (30 fps)
Maximum video resolution 1920x1080 1920x1080
Video format MPEG-4, AVCHD MPEG-4, AVCHD, H.264
Microphone jack
Headphone jack
Connectivity
Wireless Eye-Fi Connected Eye-Fi Connected
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS None None
Physical
Environmental seal
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 133g (0.29 lbs) 618g (1.36 lbs)
Physical dimensions 96 x 56 x 18mm (3.8" x 2.2" x 0.7") 132 x 98 x 81mm (5.2" x 3.9" x 3.2")
DXO scores
DXO All around score not tested 75
DXO Color Depth score not tested 23.4
DXO Dynamic range score not tested 13.0
DXO Low light score not tested 785
Other
Battery life 250 pictures 550 pictures
Style of battery Battery Pack Battery Pack
Battery model NP-BN NP-FM500H
Self timer Yes (2 or 10 sec, Portrait 1/2) Yes (2 or 10 sec)
Time lapse recording
Type of storage SD/SDHC/SDXC/Memory Stick Duo/Memory Stick Pro Duo, Memory Stick Pro-HG Duo SD/SDHC/SDXC/Memory Stick Pro Duo/ Pro-HG Duo
Storage slots One One
Retail pricing $330 $1,000