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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
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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
Photography Glossary
	

		

			
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