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Pentax K20D vs Samsung GX-20

Portability
59
Imaging
53
Features
52
Overall
52
Pentax K20D front
 
Samsung GX-20 front
Portability
58
Imaging
53
Features
52
Overall
52

Pentax K20D vs Samsung GX-20 Key Specs

Pentax K20D
(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 70mm
  • Introduced June 2008
  • Old Model is Pentax K10D
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
  • Revealed January 2008
  • Replaced the Samsung GX-10
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Pentax K20D vs Samsung GX-20 Overview

Lets look more closely at the Pentax K20D and Samsung GX-20, both Advanced DSLR digital cameras by rivals Pentax and Samsung. The resolution of the K20D (15MP) and the GX-20 (15MP) is relatively well matched and both cameras posses the identical sensor size (APS-C).

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The K20D was announced 6 months after the GX-20 and they are of a similar generation. Each of the cameras feature the same body design (Mid-size SLR).

Before diving into a full comparison, here is a short highlight of how the K20D scores versus the GX-20 for portability, imaging, features and an overall mark.

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Reasons to pick Pentax K20D over the Samsung GX-20

 K20D GX-20 

Reasons to pick Samsung GX-20 over the Pentax K20D

 GX-20 K20D 

Common features in the Pentax K20D and Samsung GX-20

 K20D GX-20 
RevealedJune 2008January 2008Similar generation
Manually focus More accurate focus
Screen typeFixed Fixed Fixed screen
Screen size2.7"2.7"Same screen size
Screen resolution230k230kIdentical screen resolution
Selfie screen Neither comes with selfie screen
Touch friendly screen Neither comes with Touch friendly screen

Pentax K20D vs Samsung GX-20 Physical Comparison

For those who are aiming to travel with your camera often, you should consider its weight and proportions. The Pentax K20D comes with outside measurements of 142mm x 101mm x 70mm (5.6" x 4.0" x 2.8") having a weight of 800 grams (1.76 lbs) and the Samsung GX-20 has measurements of 142mm x 101mm x 72mm (5.6" x 4.0" x 2.8") with a weight of 800 grams (1.76 lbs).

Check the Pentax K20D and Samsung GX-20 in the latest Camera with Lens Size Comparison Tool. Camera Size Comparison with Lenses

Take into consideration, the weight of an Interchangeable Lens Camera will vary based on the lens you are utilising at the time. Here is a front view proportions comparison of the K20D against the GX-20.

Pentax K20D vs Samsung GX-20 size comparison

Taking into consideration size and weight, the portability rating of the K20D and GX-20 is 59 and 58 respectively.

Pentax K20D vs Samsung GX-20 top view buttons comparison

Pentax K20D vs Samsung GX-20 Sensor Comparison

Often, it is hard to picture the difference between sensor dimensions merely by checking specs. The pic here might provide you a far better sense of the sensor sizing in the K20D and GX-20.

All in all, both of these cameras feature the identical sensor size and the same exact MP and you should expect similar quality of photographs but you might want to factor the release date of the products into consideration.

Pentax K20D vs Samsung GX-20 sensor size comparison

Pentax K20D vs Samsung GX-20 Screen and ViewFinder

Pentax K20D vs Samsung GX-20 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Portrait photography with Pentax K20D
Portrait photography with Samsung GX-20
71
has manual focus
decent MP (15MP)
sensor size is nice (APS-C)
saves RAW formats
71
you can focus manually
MP count decent (15 megapixels)
decent sensor size (APS-C)
supports RAW files
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Street Comparison

Pentax K20D Street photography highlights
Samsung GX-20 Street photography highlights
65
image stabilization (Sensor based)
sensor size is nice (APS-C)
saves RAW formats
environment sealing
screen is fixed
65
image stabilization (Sensor based)
decent sensor size (APS-C)
supports RAW files
weather proofing
no articulating screen
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Sports Comparison

Pentax K20D Sports photography factors
Samsung GX-20 Sports photography factors
68
image stabilization (Sensor based)
decent MP (15 megapixels)
sensor size is nice (APS-C)
environment sealing
has phase detect auto focus
painfully slow continuous shooting (3.0 frames per second)
68
image stabilization (Sensor based)
MP count decent (15MP)
decent sensor size (APS-C)
weather proofing
sensor has phase detect auto focus
max frames per second very slow (3.0 fps)
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Travel Comparison

Pentax K20D Travel photography factors
Samsung GX-20 Travel photography factors
64
environment sealing
decent MP (15 megapixels)
built-in flash
screen is not selfie friendly
63
weather proofing
MP count decent (15 megapixels)
built-in flash
does not posses selfie friendly screen
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Landscape Comparison

Pentax K20D as a Landscape photography camera
Samsung GX-20 as a Landscape photography camera
70
has manual focus
change lenses (Pentax KAF2 mount)
image stabilization (Sensor based)
decent MP (15MP)
sensor size is nice (APS-C)
saves RAW formats
environment sealing
screen is small (2.7 inches)
70
you can focus manually
swap lenses (Pentax KAF2 mount)
image stabilization (Sensor based)
MP count decent (15 megapixels)
decent sensor size (APS-C)
supports RAW files
weather proofing
tiny screen (2.7 inches)
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Vlogging Comparison

Pentax K20D Vlogging features
Samsung GX-20 Vlogging features
9
can't record video
9
can't shoot video
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Pentax K20D vs Samsung GX-20 Specifications

Detailed spec comparison table for Pentax K20D and Samsung GX-20
 Pentax K20DSamsung GX-20
General Information
Manufacturer Pentax Samsung
Model Pentax K20D Samsung GX-20
Type Advanced DSLR Advanced DSLR
Introduced 2008-06-25 2008-01-24
Physical type Mid-size SLR Mid-size SLR
Sensor Information
Sensor type CMOS CMOS
Sensor size APS-C APS-C
Sensor measurements 23.4 x 15.6mm 23.4 x 15.6mm
Sensor surface area 365.0mm² 365.0mm²
Sensor resolution 15MP 15MP
Anti aliasing filter
Aspect ratio 3:2 -
Max resolution 4672 x 3104 4688 x 3120
Max native ISO 3200 3200
Max enhanced ISO 6400 6400
Minimum native ISO 100 100
RAW pictures
Autofocusing
Focus manually
Autofocus touch
Continuous autofocus
Single autofocus
Tracking autofocus
Autofocus selectice
Autofocus center weighted
Autofocus multi area
Live view autofocus
Face detection focus
Contract detection focus
Phase detection focus
Number of focus points 11 11
Lens
Lens mounting type Pentax KAF2 Pentax KAF2
Total lenses 151 151
Crop factor 1.5 1.5
Screen
Type of screen Fixed Type Fixed Type
Screen sizing 2.7 inches 2.7 inches
Resolution of screen 230k dots 230k dots
Selfie friendly
Liveview
Touch display
Viewfinder Information
Viewfinder type Optical (pentaprism) Optical (pentaprism)
Viewfinder coverage 95 percent 95 percent
Viewfinder magnification 0.64x 0.64x
Features
Min shutter speed 30 seconds 30 seconds
Max shutter speed 1/4000 seconds 1/4000 seconds
Continuous shutter rate 3.0fps 3.0fps
Shutter priority
Aperture priority
Manual mode
Exposure compensation Yes Yes
Set white balance
Image stabilization
Integrated flash
Flash range 13.00 m (at ISO 100) 13.00 m (at ISO 100)
Flash modes Auto, Red-Eye, Slow, Red-Eye Slow, Rear curtain, wireless Auto, Red-Eye, Slow, Red-Eye Slow, Rear curtain, wireless
Hot shoe
Auto exposure bracketing
White balance bracketing
Max flash synchronize 1/180 seconds 1/180 seconds
Exposure
Multisegment
Average
Spot
Partial
AF area
Center weighted
Video features
Max video resolution None None
Microphone port
Headphone port
Connectivity
Wireless None None
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS None None
Physical
Environment sealing
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 800 gr (1.76 lb) 800 gr (1.76 lb)
Physical dimensions 142 x 101 x 70mm (5.6" x 4.0" x 2.8") 142 x 101 x 72mm (5.6" x 4.0" x 2.8")
DXO scores
DXO Overall score 65 68
DXO Color Depth score 22.9 23.1
DXO Dynamic range score 11.1 11.2
DXO Low light score 639 714
Other
Battery model D-LI50 -
Self timer Yes (2 or 10 sec) Yes (2 or 10 sec)
Time lapse feature
Storage type SD/MMC/SDHC card SD/MMC/SDHC card
Card slots 1 1
Price at release $700 $850