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Samsung GX-20 vs Sony A77 II

Portability
58
Imaging
54
Features
52
Overall
53
Samsung GX-20 front
 
Sony SLT-A77 II front
Portability
62
Imaging
66
Features
85
Overall
73

Samsung GX-20 vs Sony A77 II Key Specs

Samsung GX-20
(Full Review)
  • 15MP - APS-C Sensor
  • 2.7" Fixed Screen
  • ISO 100 - 3200 (Bump to 6400)
  • Sensor based Image Stabilization
  • No Video
  • Pentax KAF2 Mount
  • 800g - 142 x 101 x 72mm
  • Announced January 2008
  • Old Model is Samsung GX-10
Sony A77 II
(Full Review)
  • 24MP - APS-C Sensor
  • 3" Fully Articulated Display
  • ISO 50 - 25600
  • Sensor based Image Stabilization
  • 1/8000s Max Shutter
  • 1920 x 1080 video
  • Sony/Minolta Alpha Mount
  • 647g - 143 x 104 x 81mm
  • Released May 2014
  • Succeeded the Sony A77
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Samsung GX-20 vs Sony A77 II Overview

Here is a in depth review of the Samsung GX-20 and Sony A77 II, both Advanced DSLR cameras by rivals Samsung and Sony. There is a big difference among the image resolutions of the GX-20 (15MP) and A77 II (24MP) but they come with the same exact sensor sizing (APS-C).

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The GX-20 was introduced 7 years before the A77 II and that is a fairly big gap as far as camera tech is concerned. Both of these cameras offer the identical body type (Mid-size SLR).

Before diving through a comprehensive comparison, below is a short synopsis of how the GX-20 scores against the A77 II in relation to portability, imaging, features and an overall rating.

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Reasons to pick Samsung GX-20 over the Sony A77 II

 GX-20 A77 II 

Reasons to pick Sony A77 II over the Samsung GX-20

 A77 II GX-20 
ReleasedMay 2014January 2008Fresher by 76 months
Display typeFully ArticulatedFixed Fully Articulating display
Display sizing3"2.7"Larger display (+0.3")
Display resolution1229k230kClearer display (+999k dot)
Selfie screen Easy selfies

Common features in the Samsung GX-20 and Sony A77 II

 GX-20 A77 II 
Manual focus More accurate focus
Touch display Lacking Touch display

Samsung GX-20 vs Sony A77 II Physical Comparison

When you are looking to carry your camera, you have to take into account its weight and measurements. The Samsung GX-20 enjoys external measurements of 142mm x 101mm x 72mm (5.6" x 4.0" x 2.8") with a weight of 800 grams (1.76 lbs) while the Sony A77 II has proportions of 143mm x 104mm x 81mm (5.6" x 4.1" x 3.2") accompanied by a weight of 647 grams (1.43 lbs).

Check the Samsung GX-20 and Sony A77 II in the latest Camera with Lens Size Comparison Tool. Camera Size Comparison with Lenses

Keep in mind, the weight of an Interchangeable Lens Camera will change based on the lens you have chosen at that time. Following is the front view dimension comparison of the GX-20 against the A77 II.

Samsung GX-20 vs Sony A77 II size comparison

Factoring in size and weight, the portability rating of the GX-20 and A77 II is 58 and 62 respectively.

Samsung GX-20 vs Sony A77 II top view buttons comparison

Samsung GX-20 vs Sony A77 II Sensor Comparison

Generally, its difficult to envision the contrast in sensor sizing only by checking out specifications. The graphic below may provide you a clearer sense of the sensor measurements in the GX-20 and A77 II.

To sum up, the two cameras offer the same exact sensor sizing but not the same MP. You should expect to see the Sony A77 II to show extra detail using its extra 9MP. Greater resolution will let you crop images a little more aggressively. The older GX-20 will be behind when it comes to sensor innovation.

Samsung GX-20 vs Sony A77 II sensor size comparison

Samsung GX-20 vs Sony A77 II Screen and ViewFinder

Samsung GX-20 vs Sony A77 II Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Samsung GX-20 Portrait photography features
Sony A77 II Portrait photography features
72
you can focus manually
MP count good (15 megapixels)
nice sensor size (APS-C)
saves RAW formats
79
manual focus
decent MP (24MP)
decent sensor size (APS-C)
comes with face detection focus
delivers RAW files
Photography Glossary

Street Comparison

Samsung GX-20 Street photography features
Sony A77 II Street photography features
65
built in image stabilization (Sensor based)
nice sensor size (APS-C)
saves RAW formats
weather proof
no moving screen
76
screen can move to multiple angles
has image stabilization (Sensor based)
decent sensor size (APS-C)
delivers RAW files
weather proof
good ISO range (25,600)
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Sports Comparison

Samsung GX-20 Sports photography details
Sony A77 II Sports photography details
68
built in image stabilization (Sensor based)
MP count good (15MP)
nice sensor size (APS-C)
weather proof
comes with phase detect auto focus
max fps very slow (3.0 frames per second)
76
great max shutter speed (1/8,000s)
has image stabilization (Sensor based)
decent MP (24MP)
decent sensor size (APS-C)
comes with tracking autofocus
weather proof
supports phase detect auto focus
low battery life (480 shots)
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Travel Comparison

Samsung GX-20 Travel photography information
Sony A77 II Travel photography information
64
weather proof
MP count good (15 megapixels)
flash built-in
display is not selfie friendly
64
weather proof
decent MP (24 megapixels)
flash built-in
screen is selfie friendly
does not have Timelapse recording
low battery life (480 CIPA)
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Landscape Comparison

Samsung GX-20 Landscape photography information
Sony A77 II Landscape photography information
71
you can focus manually
interchangeable lenses (Pentax KAF2 mount)
built in image stabilization (Sensor based)
MP count good (15MP)
nice sensor size (APS-C)
saves RAW formats
weather proof
screen is small (2.7 inches)
73
manual focus
change lenses (Sony/Minolta Alpha mount)
decent sized screen (3 inches)
has image stabilization (Sensor based)
decent MP (24MP)
decent sensor size (APS-C)
good ISO range (25,600)
delivers RAW files
weather proof
low battery life (480 per charge)
does not have Timelapse recording
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Vlogging Comparison

Samsung GX-20 Vlogging details
Sony A77 II Vlogging details
9
no video shooting
78
screen is selfie friendly
has image stabilization (Sensor based)
comes with face detection focus
high quality video (1920 x 1080 pixels)
comes with external microphone jack
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Samsung GX-20 vs Sony A77 II Specifications

Detailed spec comparison table for Samsung GX-20 and Sony A77 II
 Samsung GX-20Sony SLT-A77 II
General Information
Make Samsung Sony
Model Samsung GX-20 Sony SLT-A77 II
Category Advanced DSLR Advanced DSLR
Announced 2008-01-24 2014-05-21
Body design Mid-size SLR Mid-size SLR
Sensor Information
Powered by - Bionz X
Sensor type CMOS CMOS
Sensor size APS-C APS-C
Sensor measurements 23.4 x 15.6mm 23.5 x 15.6mm
Sensor area 365.0mm² 366.6mm²
Sensor resolution 15 megapixel 24 megapixel
Anti aliasing filter
Aspect ratio - 3:2 and 16:9
Peak resolution 4688 x 3120 6000 x 4000
Highest native ISO 3200 25600
Highest enhanced ISO 6400 -
Lowest native ISO 100 50
RAW support
Autofocusing
Manual focus
AF touch
AF continuous
AF single
Tracking AF
Selective AF
Center weighted AF
Multi area AF
AF live view
Face detection focusing
Contract detection focusing
Phase detection focusing
Number of focus points 11 79
Cross focus points - 15
Lens
Lens mounting type Pentax KAF2 Sony/Minolta Alpha
Number of lenses 151 143
Crop factor 1.5 1.5
Screen
Range of screen Fixed Type Fully Articulated
Screen diagonal 2.7 inches 3 inches
Screen resolution 230 thousand dot 1,229 thousand dot
Selfie friendly
Liveview
Touch function
Viewfinder Information
Viewfinder type Optical (pentaprism) Electronic
Viewfinder resolution - 2,359 thousand dot
Viewfinder coverage 95% 100%
Viewfinder magnification 0.64x 0.73x
Features
Minimum shutter speed 30 seconds 30 seconds
Fastest shutter speed 1/4000 seconds 1/8000 seconds
Continuous shutter speed 3.0 frames/s 12.0 frames/s
Shutter priority
Aperture priority
Manual exposure
Exposure compensation Yes Yes
Change WB
Image stabilization
Integrated flash
Flash range 13.00 m (at ISO 100) 12.00 m (at ISO 100)
Flash settings Auto, Red-Eye, Slow, Red-Eye Slow, Rear curtain, wireless Auto, fill, rear sync, slow sync
Hot shoe
AEB
WB bracketing
Fastest flash sync 1/180 seconds 1/250 seconds
Exposure
Multisegment exposure
Average exposure
Spot exposure
Partial exposure
AF area exposure
Center weighted exposure
Video features
Supported video resolutions - 1920 x 1080 (60p, 60i, 30p), 1440 x 1080 (30p), 640 x 480 (30p)
Highest video resolution None 1920x1080
Video data format - MPEG-4, AVCHD, XAVC S
Microphone input
Headphone input
Connectivity
Wireless None Built-In
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS None None
Physical
Environment seal
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 800 grams (1.76 pounds) 647 grams (1.43 pounds)
Dimensions 142 x 101 x 72mm (5.6" x 4.0" x 2.8") 143 x 104 x 81mm (5.6" x 4.1" x 3.2")
DXO scores
DXO Overall score 68 82
DXO Color Depth score 23.1 24.4
DXO Dynamic range score 11.2 13.4
DXO Low light score 714 1013
Other
Battery life - 480 shots
Battery format - Battery Pack
Battery model - NP-FM500H
Self timer Yes (2 or 10 sec) Yes (Yes (2 or 12 sec))
Time lapse feature
Storage media SD/MMC/SDHC card SD/ SDHC/SDXC, Memory Stick Pro Duo/ Pro-HG Duo
Storage slots Single Single
Price at release $850 $1,198