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Sony A7S III vs Sony A57

Portability
61
Imaging
65
Features
92
Overall
75
Sony Alpha A7S III front
 
Sony SLT-A57 front
Portability
64
Imaging
57
Features
85
Overall
68

Sony A7S III vs Sony A57 Key Specs

Sony A7S III
(Full Review)
  • 12MP - Full frame Sensor
  • 3" Fully Articulated Display
  • ISO 80 - 102400 (Expand to 409600)
  • Sensor based 5-axis Image Stabilization
  • 1/8000s Max Shutter
  • 3840 x 2160 video
  • Sony E Mount
  • 699g - 129 x 97 x 81mm
  • Launched July 2020
  • Earlier Model is Sony A7S II
Sony A57
(Full Review)
  • 16MP - APS-C Sensor
  • 3" Fully Articulated Display
  • ISO 100 - 16000 (Push to 25600)
  • Sensor based Image Stabilization
  • 1920 x 1080 video
  • Sony/Minolta Alpha Mount
  • 618g - 132 x 98 x 81mm
  • Announced September 2012
  • Old Model is Sony A55
  • Newer Model is Sony A58
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Sony A7S III vs Sony A57 Overview

Following is a thorough assessment of the Sony A7S III vs Sony A57, former is a Pro Mirrorless while the other is a Entry-Level DSLR and they are both sold by Sony. There is a considerable difference between the image resolutions of the A7S III (12MP) and A57 (16MP) and the A7S III (Full frame) and A57 (APS-C) possess totally different sensor measurements.

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The A7S III was brought out 7 years after the A57 which is quite a large difference as far as tech is concerned. Each of the cameras come with different body type with the Sony A7S III being a SLR-style mirrorless camera and the Sony A57 being a Compact SLR camera.

Before delving in to a thorough comparison, below is a concise synopsis of how the A7S III grades versus the A57 when considering portability, imaging, features and an overall score.

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Reasons to pick Sony A7S III over the Sony A57

 A7S III A57 
AnnouncedJuly 2020September 2012More modern by 96 months
Display resolution1440k921kCrisper display (+519k dot)
Touch friendly display Easily navigate

Reasons to pick Sony A57 over the Sony A7S III

 A57 A7S III 

Common features in the Sony A7S III and Sony A57

 A7S III A57 
Manual focus Very accurate focusing
Display typeFully articulatedFully ArticulatedFully Articulated display
Display dimension3"3"Identical display measurements
Selfie screen Both are selfie friendly

Sony A7S III vs Sony A57 Physical Comparison

In case you're looking to carry around your camera regularly, you'll need to factor its weight and dimensions. The Sony A7S III enjoys external measurements of 129mm x 97mm x 81mm (5.1" x 3.8" x 3.2") having a weight of 699 grams (1.54 lbs) while the Sony A57 has dimensions of 132mm x 98mm x 81mm (5.2" x 3.9" x 3.2") and a weight of 618 grams (1.36 lbs).

Check out the Sony A7S III vs Sony A57 in our completely new Camera & Lens Size Comparison Tool. Camera Size Comparison with Lenses

Always remember, the weight of an ILC will differ based on the lens you are utilizing at that moment. Following is the front view measurements comparison of the A7S III against the A57.

Sony A7S III vs Sony A57 size comparison

Considering size and weight, the portability rating of the A7S III and A57 is 61 and 64 respectively.

Sony A7S III vs Sony A57 top view buttons comparison

Sony A7S III vs Sony A57 Sensor Comparison

In many cases, it's tough to visualise the difference between sensor sizes just by reading a spec sheet. The image here should give you a stronger sense of the sensor measurements in the A7S III and A57.

Clearly, the 2 cameras have got different megapixels and different sensor sizes. The A7S III due to its larger sensor will make shooting shallow depth of field simpler and the Sony A57 will offer extra detail having its extra 4MP. Greater resolution will enable you to crop images much more aggressively. The more recent A7S III is going to have a benefit with regard to sensor tech.

Sony A7S III vs Sony A57 sensor size comparison

Sony A7S III vs Sony A57 Screen and ViewFinder

Sony A7S III vs Sony A57 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Portrait photography with Sony A7S III
Portrait photography with Sony A57
71
has manual focus
sensor size is large (Full frame)
supports face detection focusing
exports RAW formats
resolution not great (12MP)
74
manual focus
megapixel count good (16 megapixels)
sensor size is decent (APS-C)
offers face detect focus
saves RAW formats
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Street Comparison

Sony A7S III as a Street photography camera
Sony A57 as a Street photography camera
76
has image stabilization (Sensor based 5-axis)
sensor size is large (Full frame)
exports RAW formats
boasts focus by touch
weather sealing
very good high ISO (102,400)
75
screen articulates fully
has image stabilization (Sensor based)
sensor size is decent (APS-C)
saves RAW formats
Photography Glossary

Sports Comparison

Sony A7S III Sports photography details
Sony A57 Sports photography details
76
great max shutter speed (1/8,000 seconds)
has image stabilization (Sensor based 5-axis)
sensor size is large (Full frame)
supports tracking autofocus
weather sealing
great battery power (600 per charge)
sensor has phase detect AF
resolution not great (12MP)
78
has image stabilization (Sensor based)
megapixel count good (16MP)
sensor size is decent (APS-C)
offers tracking focus
sensor has phase detect auto focus
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Travel Comparison

Sony A7S III as a Travel photography camera
Sony A57 as a Travel photography camera
70
great battery power (600 per charge)
weather sealing
connects via bluetooth
boasts focus by touch
display is selfie friendly
resolution not great (12MP)
67
megapixel count good (16MP)
built-in flash
display is selfie friendly
does not have Time Lapse function
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Landscape Comparison

Sony A7S III Landscape photography factors
Sony A57 Landscape photography factors
77
has manual focus
interchangeable lenses (Sony E mount)
nice screen size (3 inches)
has image stabilization (Sensor based 5-axis)
sensor size is large (Full frame)
very good high ISO (102,400)
exports RAW formats
weather sealing
great battery power (600 shots)
has double storage slots
resolution not great (12 megapixels)
72
manual focus
switch lenses (Sony/Minolta Alpha mount)
screen size is good (3 inch)
has image stabilization (Sensor based)
megapixel count good (16MP)
sensor size is decent (APS-C)
saves RAW formats
does not have Time Lapse function
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Vlogging Comparison

Sony A7S III Vlogging information
Sony A57 Vlogging information
77
display is selfie friendly
screen is touchscreen
has image stabilization (Sensor based 5-axis)
supports face detection focusing
good video quality (3840 x 2160 resolution)
includes external microphone port
77
display is selfie friendly
has image stabilization (Sensor based)
offers face detect focus
high res video (1920 x 1080 pxls)
includes mic jack
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Sony A7S III vs Sony A57 Specifications

Detailed spec comparison table for Sony A7S III and Sony A57
 Sony Alpha A7S IIISony SLT-A57
General Information
Brand Sony Sony
Model type Sony Alpha A7S III Sony SLT-A57
Type Pro Mirrorless Entry-Level DSLR
Launched 2020-07-21 2012-09-13
Body design SLR-style mirrorless Compact SLR
Sensor Information
Processor Chip Bionz XR -
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 12MP 16MP
Anti alias filter
Aspect ratio 3:2 and 16:9 3:2 and 16:9
Highest resolution 4240 x 2832 4912 x 3264
Highest native ISO 102400 16000
Highest boosted ISO 409600 25600
Lowest native ISO 80 100
RAW data
Lowest boosted ISO 50 -
Autofocusing
Focus manually
Touch to focus
AF continuous
Single AF
Tracking AF
Selective AF
AF center weighted
Multi area AF
AF live view
Face detect focusing
Contract detect focusing
Phase detect focusing
Total focus points 759 15
Cross type focus points - 3
Lens
Lens mount type Sony E Sony/Minolta Alpha
Total lenses 121 143
Crop factor 1 1.5
Screen
Display type Fully articulated Fully Articulated
Display sizing 3 inch 3 inch
Resolution of display 1,440k dot 921k dot
Selfie friendly
Liveview
Touch friendly
Display technology - Xtra Fine TFT drive with TruBlack technology
Viewfinder Information
Viewfinder type Electronic Electronic
Viewfinder resolution 9,440k dot 1,440k dot
Viewfinder coverage 100 percent 100 percent
Viewfinder magnification 0.91x 0.7x
Features
Slowest shutter speed 30s 30s
Maximum shutter speed 1/8000s 1/4000s
Continuous shooting speed 10.0fps 12.0fps
Shutter priority
Aperture priority
Manual exposure
Exposure compensation Yes Yes
Set WB
Image stabilization
Built-in flash
Flash distance no built-in flash 10.00 m (@ ISO 100)
Flash settings no built-in flash Auto, On, Off, Red-Eye, Slow Sync, High Speed Sync, Rear Curtain, Fill-in, Wireless
External flash
AE bracketing
WB bracketing
Maximum flash sync - 1/160s
Exposure
Multisegment exposure
Average exposure
Spot exposure
Partial exposure
AF area exposure
Center weighted exposure
Video features
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 1920 x 1080 (60p, 24p), 1440 x 1080 (30p), 640 x 480 (30 fps)
Highest video resolution 3840x2160 1920x1080
Video format MPEG-4, XAVC S, XAVC HS, XAVC S-1, H.264, H.265 MPEG-4, AVCHD, H.264
Mic input
Headphone input
Connectivity
Wireless Built-In Eye-Fi Connected
Bluetooth
NFC
HDMI
USB USB 3.2 Gen 1 (5 GBit/sec) USB 2.0 (480 Mbit/sec)
GPS None None
Physical
Environment seal
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 699 gr (1.54 pounds) 618 gr (1.36 pounds)
Dimensions 129 x 97 x 81mm (5.1" x 3.8" x 3.2") 132 x 98 x 81mm (5.2" x 3.9" x 3.2")
DXO scores
DXO All around rating 85 75
DXO Color Depth rating 23.6 23.4
DXO Dynamic range rating 13.3 13.0
DXO Low light rating 2993 785
Other
Battery life 600 shots 550 shots
Type of battery Battery Pack Battery Pack
Battery ID NP-FZ100 NP-FM500H
Self timer Yes (2 or 10 sec; continuous (3 or 5 exposures)) Yes (2 or 10 sec)
Time lapse shooting With downloadable app
Type of storage Dual SD/CFexpress Type A slots SD/SDHC/SDXC/Memory Stick Pro Duo/ Pro-HG Duo
Storage slots Dual One
Price at launch $3,499 $1,000