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Samsung GX-20 vs Samsung ST90

Portability
58
Imaging
53
Features
52
Overall
52
Samsung GX-20 front
 
Samsung ST90 front
Portability
99
Imaging
37
Features
19
Overall
29

Samsung GX-20 vs Samsung ST90 Key Specs

Samsung GX-20
(Full Review)
  • 15MP - APS-C Sensor
  • 2.7" Fixed Display
  • ISO 100 - 3200 (Bump to 6400)
  • Sensor based Image Stabilization
  • No Video
  • Pentax KAF2 Mount
  • 800g - 142 x 101 x 72mm
  • Introduced January 2008
  • Old Model is Samsung GX-10
Samsung ST90
(Full Review)
  • 14MP - 1/2.3" Sensor
  • 3" Fixed Screen
  • ISO 0 - 0
  • 1280 x 720 video
  • ()mm (F) lens
  • n/ag - 92 x 53 x 17mm
  • Released January 2011
Photography Glossary

Samsung GX-20 vs Samsung ST90 Overview

Lets look a bit more closely at the Samsung GX-20 versus Samsung ST90, former being a Advanced DSLR while the latter is a Ultracompact and both are produced by Samsung. The resolution of the GX-20 (15MP) and the ST90 (14MP) is pretty well matched but the GX-20 (APS-C) and ST90 (1/2.3") enjoy totally different sensor sizes.

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The GX-20 was revealed 4 years earlier than the ST90 and that is quite a sizable difference as far as tech is concerned. The two cameras come with different body type with the Samsung GX-20 being a Mid-size SLR camera and the Samsung ST90 being a Ultracompact camera.

Before delving through a step-by-step comparison, below is a concise overview of how the GX-20 scores vs the ST90 in the way of portability, imaging, features and an overall rating.

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Reasons to pick Samsung GX-20 over the Samsung ST90

 GX-20 ST90 
Manually focus Dial precise focus

Reasons to pick Samsung ST90 over the Samsung GX-20

 ST90 GX-20 
ReleasedJanuary 2011January 2008Fresher by 36 months
Screen dimension3"2.7"Bigger screen (+0.3")
Screen resolution460k230kClearer screen (+230k dot)

Common features in the Samsung GX-20 and Samsung ST90

 GX-20 ST90 
Screen typeFixed Fixed Fixed screen
Selfie screen No selfie screen
Touch screen Neither provides Touch screen

Samsung GX-20 vs Samsung ST90 Physical Comparison

In case you're aiming to carry your camera, you'll need to factor in its weight and size. The Samsung GX-20 provides outer dimensions of 142mm x 101mm x 72mm (5.6" x 4.0" x 2.8") along with a weight of 800 grams (1.76 lbs) while the Samsung ST90 has specifications of 92mm x 53mm x 17mm (3.6" x 2.1" x 0.7") having a weight of n/a grams (0.00 lbs).

Analyze the Samsung GX-20 versus Samsung ST90 in our completely new Camera & Lens Size Comparison Tool. Camera Size Comparison with Lenses

Take into account, the weight of an ILC will change depending on the lens you have attached at that moment. The following is the front view dimension comparison of the GX-20 versus the ST90.

Samsung GX-20 vs Samsung ST90 size comparison

Considering size and weight, the portability rating of the GX-20 and ST90 is 58 and 99 respectively.

Samsung GX-20 vs Samsung ST90 top view buttons comparison

Samsung GX-20 vs Samsung ST90 Sensor Comparison

Usually, it's tough to visualise the difference between sensor sizing purely by checking specifications. The visual here will give you a greater sense of the sensor dimensions in the GX-20 and ST90.

To sum up, both of the cameras have got different megapixels and different sensor sizing. The GX-20 with its bigger sensor will make shooting shallow DOF easier and the Samsung GX-20 will give extra detail because of its extra 1 Megapixels. Higher resolution will help you crop pictures much more aggressively. The older GX-20 is going to be behind when it comes to sensor technology.

Samsung GX-20 vs Samsung ST90 sensor size comparison

Samsung GX-20 vs Samsung ST90 Screen and ViewFinder

Samsung GX-20 vs Samsung ST90 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Samsung GX-20 Portrait photography info
Samsung ST90 Portrait photography info
71
manual focus
good MP (15MP)
sensor size is decent (APS-C)
supports RAW formats
28
MP count good (14 megapixels)
no manual focus
lack of manual exposure
external flash not possible
sensor is tiny (1/2.3")
has no RAW files
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Street Comparison

Street photography with Samsung GX-20
Street photography with Samsung ST90
65
has image stabilization (Sensor based)
sensor size is decent (APS-C)
supports RAW formats
environment sealing
no moving screen
49
no articulating screen
no image stabilization
sensor is tiny (1/2.3")
has no RAW files
low maximum ISO (0)
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Sports Comparison

Samsung GX-20 Sports photography information
Samsung ST90 Sports photography information
68
has image stabilization (Sensor based)
good MP (15MP)
sensor size is decent (APS-C)
environment sealing
supports phase detect auto focus
max frames per second low (3.0 frames per second)
26
MP count good (14 megapixels)
fixed focal length (()mm)
lack of shutter priority mode
no image stabilization
sensor is tiny (1/2.3")
has no phase detect auto focus
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Travel Comparison

Samsung GX-20 Travel photography advice
Samsung ST90 Travel photography advice
63
environment sealing
good MP (15 megapixels)
flash built-in
display is not selfie friendly
71
MP count good (14 megapixels)
has built in flash
great maximum aperture (f)
missing Time Lapse function
does not have a selfie friendly display
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Landscape Comparison

Samsung GX-20 as a Landscape photography camera
Samsung ST90 as a Landscape photography camera
70
manual focus
interchangeable lenses (Pentax KAF2 mount)
has image stabilization (Sensor based)
good MP (15MP)
sensor size is decent (APS-C)
supports RAW formats
environment sealing
screen is small (2.7")
37
great maximum aperture (f)
nice screen size (3 inches)
MP count good (14MP)
no manual focus
fixed lens (fixed lens mount)
fixed focal length (()mm)
lack of manual exposure
no image stabilization
sensor is tiny (1/2.3")
low maximum ISO (0)
has no RAW files
missing Time Lapse function
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Vlogging Comparison

Vlogging with Samsung GX-20
Vlogging with Samsung ST90
9
no video recording
27
great maximum aperture (f)
does not have a selfie friendly display
no image stabilization
video quality not great (1280 x 720 pixels)
missing mic support
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Samsung GX-20 vs Samsung ST90 Specifications

Detailed spec comparison table for Samsung GX-20 and Samsung ST90
 Samsung GX-20Samsung ST90
General Information
Brand Samsung Samsung
Model Samsung GX-20 Samsung ST90
Class Advanced DSLR Ultracompact
Introduced 2008-01-24 2011-01-19
Physical type Mid-size SLR Ultracompact
Sensor Information
Sensor type CMOS CCD
Sensor size APS-C 1/2.3"
Sensor dimensions 23.4 x 15.6mm 6.16 x 4.62mm
Sensor surface area 365.0mm² 28.5mm²
Sensor resolution 15MP 14MP
Anti aliasing filter
Peak resolution 4688 x 3120 4608 x 3456
Highest native ISO 3200 -
Highest enhanced ISO 6400 -
Minimum native ISO 100 -
RAW images
Autofocusing
Focus manually
AF touch
AF continuous
Single AF
AF tracking
AF selectice
AF center weighted
Multi area AF
Live view AF
Face detect AF
Contract detect AF
Phase detect AF
Number of focus points 11 -
Lens
Lens mounting type Pentax KAF2 fixed lens
Lens focal range - ()
Available lenses 151 -
Focal length multiplier 1.5 5.8
Screen
Type of display Fixed Type Fixed Type
Display sizing 2.7 inches 3 inches
Resolution of display 230 thousand dots 460 thousand dots
Selfie friendly
Liveview
Touch functionality
Viewfinder Information
Viewfinder Optical (pentaprism) None
Viewfinder coverage 95% -
Viewfinder magnification 0.64x -
Features
Min shutter speed 30s 8s
Max shutter speed 1/4000s 1/2000s
Continuous shutter rate 3.0 frames per second -
Shutter priority
Aperture priority
Manually set exposure
Exposure compensation Yes -
Custom WB
Image stabilization
Integrated flash
Flash range 13.00 m (at ISO 100) -
Flash modes Auto, Red-Eye, Slow, Red-Eye Slow, Rear curtain, wireless -
Hot shoe
AEB
WB bracketing
Max flash synchronize 1/180s -
Exposure
Multisegment exposure
Average exposure
Spot exposure
Partial exposure
AF area exposure
Center weighted exposure
Video features
Supported video resolutions - 1280 x 720
Highest video resolution None 1280x720
Mic support
Headphone support
Connectivity
Wireless None None
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) none
GPS None None
Physical
Environmental sealing
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 800 grams (1.76 lbs) -
Dimensions 142 x 101 x 72mm (5.6" x 4.0" x 2.8") 92 x 53 x 17mm (3.6" x 2.1" x 0.7")
DXO scores
DXO Overall score 68 not tested
DXO Color Depth score 23.1 not tested
DXO Dynamic range score 11.2 not tested
DXO Low light score 714 not tested
Other
Self timer Yes (2 or 10 sec) -
Time lapse shooting
Storage type SD/MMC/SDHC card -
Card slots 1 1
Cost at release $850 $150