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Pentax K-3 II vs Samsung GX-20

Portability
59
Imaging
66
Features
84
Overall
73
Pentax K-3 II front
 
Samsung GX-20 front
Portability
58
Imaging
54
Features
52
Overall
53

Pentax K-3 II vs Samsung GX-20 Key Specs

Pentax K-3 II
(Full Review)
  • 24MP - APS-C Sensor
  • 3.2" Fixed Screen
  • ISO 100 - 51200
  • Sensor based Image Stabilization
  • No Anti-Alias Filter
  • 1/8000s Maximum Shutter
  • 1920 x 1080 video
  • Pentax KAF2 Mount
  • 800g - 131 x 100 x 77mm
  • Released April 2015
  • Previous Model is Pentax K-3
Samsung GX-20
(Full Review)
  • 15MP - APS-C Sensor
  • 2.7" Fixed Screen
  • ISO 100 - 3200 (Boost to 6400)
  • Sensor based Image Stabilization
  • No Video
  • Pentax KAF2 Mount
  • 800g - 142 x 101 x 72mm
  • Announced January 2008
  • Replaced the Samsung GX-10
Photography Glossary

Pentax K-3 II vs Samsung GX-20 Overview

Let's look a bit more in depth at the Pentax K-3 II vs Samsung GX-20, both Advanced DSLR cameras by competitors Pentax and Samsung. There is a significant difference among the image resolutions of the K-3 II (24MP) and GX-20 (15MP) but both cameras posses the same sensor sizing (APS-C).

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The K-3 II was launched 7 years later than the GX-20 and that is a fairly sizable gap as far as camera tech is concerned. The two cameras have the same body design (Mid-size SLR).

Before diving right into a comprehensive comparison, here is a quick highlight of how the K-3 II grades against the GX-20 with regards to portability, imaging, features and an overall rating.

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Reasons to pick Pentax K-3 II over the Samsung GX-20

 K-3 II GX-20 
AnnouncedApril 2015January 2008Fresher by 89 months
Screen dimensions3.2"2.7"Bigger screen (+0.5")
Screen resolution1037k230kCrisper screen (+807k dot)

Reasons to pick Samsung GX-20 over the Pentax K-3 II

 GX-20 K-3 II 

Common features in the Pentax K-3 II and Samsung GX-20

 K-3 II GX-20 
Focus manually More exact focusing
Screen typeFixed Fixed Fixed screen
Selfie screen Neither includes selfie screen
Touch screen Neither includes Touch screen

Pentax K-3 II vs Samsung GX-20 Physical Comparison

If you're looking to carry your camera frequently, you will want to consider its weight and measurements. The Pentax K-3 II features outer measurements of 131mm x 100mm x 77mm (5.2" x 3.9" x 3.0") and a weight of 800 grams (1.76 lbs) and the Samsung GX-20 has proportions of 142mm x 101mm x 72mm (5.6" x 4.0" x 2.8") and a weight of 800 grams (1.76 lbs).

See the Pentax K-3 II vs Samsung GX-20 in the latest Camera and Lens Size Comparison Tool. Camera Size Comparison with Lenses

Remember that, the weight of an Interchangeable Lens Camera will vary depending on the lens you choose during that time. The following is a front view measurements comparison of the K-3 II compared to the GX-20.

Pentax K-3 II vs Samsung GX-20 size comparison

Using size and weight, the portability score of the K-3 II and GX-20 is 59 and 58 respectively.

Pentax K-3 II vs Samsung GX-20 top view buttons comparison

Pentax K-3 II vs Samsung GX-20 Sensor Comparison

Generally, it is very hard to picture the difference in sensor sizing purely by checking out specifications. The visual here will help provide you a much better sense of the sensor sizing in the K-3 II and GX-20.

To sum up, the 2 cameras provide the same sensor dimensions albeit different MP. You should count on the Pentax K-3 II to produce greater detail utilizing its extra 9 Megapixels. Higher resolution will make it easier to crop shots more aggressively. The newer K-3 II provides an advantage in sensor tech.

Pentax K-3 II vs Samsung GX-20 sensor size comparison

Pentax K-3 II vs Samsung GX-20 Screen and ViewFinder

Pentax K-3 II vs Samsung GX-20 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Pentax K-3 II Portrait photography information
Samsung GX-20 Portrait photography information
79
has manual focus
decent MP (24MP)
sensor size is decent (APS-C)
has face detect focusing
saves RAW files
72
has manual focus
decent megapixels (15MP)
sensor size is nice (APS-C)
saves RAW files
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Street Comparison

Pentax K-3 II Street photography factors
Samsung GX-20 Street photography factors
69
image stabilization (Sensor based)
sensor size is decent (APS-C)
saves RAW files
weather proof
great ISO range (51,200)
fixed screen
65
built in image stabilization (Sensor based)
sensor size is nice (APS-C)
saves RAW files
environment sealing
fixed screen
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Sports Comparison

Pentax K-3 II as a Sports photography camera
Samsung GX-20 as a Sports photography camera
76
max shutter speed is good (1/8,000s)
image stabilization (Sensor based)
decent MP (24MP)
sensor size is decent (APS-C)
has tracking focus
weather proof
has phase detect AF
low battery (720 shots)
68
built in image stabilization (Sensor based)
decent megapixels (15MP)
sensor size is nice (APS-C)
environment sealing
has phase detect auto focus
slow fps (3.0 frames per second)
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Travel Comparison

Pentax K-3 II as a Travel photography camera
Samsung GX-20 as a Travel photography camera
56
weather proof
decent MP (24 megapixels)
low battery (720 CIPA)
screen isn't selfie friendly
64
environment sealing
decent megapixels (15 megapixels)
built-in flash
screen isn't selfie friendly
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Landscape Comparison

Pentax K-3 II Landscape photography details
Samsung GX-20 Landscape photography details
78
has manual focus
change lenses (Pentax KAF2 mount)
pretty good screen size (3.2")
image stabilization (Sensor based)
decent MP (24 megapixels)
sensor size is decent (APS-C)
does not have anti-alias filter
great ISO range (51,200)
saves RAW files
weather proof
2 card slots
low battery (720 per charge)
71
has manual focus
change lenses (Pentax KAF2 mount)
built in image stabilization (Sensor based)
decent megapixels (15MP)
sensor size is nice (APS-C)
saves RAW files
environment sealing
tiny screen (2.7")
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Vlogging Comparison

Pentax K-3 II as a Vlogging camera
Samsung GX-20 as a Vlogging camera
34
image stabilization (Sensor based)
has face detect focusing
video res high (1920 x 1080 pixels)
has mic support
screen isn't selfie friendly
9
no video
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Pentax K-3 II vs Samsung GX-20 Specifications

Detailed spec comparison table for Pentax K-3 II and Samsung GX-20
 Pentax K-3 IISamsung GX-20
General Information
Brand Name Pentax Samsung
Model Pentax K-3 II Samsung GX-20
Class Advanced DSLR Advanced DSLR
Released 2015-04-23 2008-01-24
Body design Mid-size SLR Mid-size SLR
Sensor Information
Processor Chip Prime III -
Sensor type CMOS CMOS
Sensor size APS-C APS-C
Sensor dimensions 23.5 x 15.6mm 23.4 x 15.6mm
Sensor surface area 366.6mm² 365.0mm²
Sensor resolution 24MP 15MP
Anti aliasing filter
Aspect ratio 3:2 -
Highest resolution 6016 x 4000 4688 x 3120
Highest native ISO 51200 3200
Highest boosted ISO - 6400
Lowest native ISO 100 100
RAW photos
Autofocusing
Focus manually
Autofocus touch
Autofocus continuous
Autofocus single
Tracking autofocus
Autofocus selectice
Autofocus center weighted
Multi area autofocus
Live view autofocus
Face detection focus
Contract detection focus
Phase detection focus
Number of focus points 27 11
Cross focus points 25 -
Lens
Lens mount Pentax KAF2 Pentax KAF2
Total lenses 151 151
Focal length multiplier 1.5 1.5
Screen
Screen type Fixed Type Fixed Type
Screen diagonal 3.2" 2.7"
Resolution of screen 1,037 thousand dot 230 thousand dot
Selfie friendly
Liveview
Touch friendly
Viewfinder Information
Viewfinder type Optical (pentaprism) Optical (pentaprism)
Viewfinder coverage 100% 95%
Viewfinder magnification 0.64x 0.64x
Features
Slowest shutter speed 30s 30s
Maximum shutter speed 1/8000s 1/4000s
Continuous shooting speed 8.3fps 3.0fps
Shutter priority
Aperture priority
Expose Manually
Exposure compensation Yes Yes
Change white balance
Image stabilization
Inbuilt flash
Flash range no built-in flash 13.00 m (at ISO 100)
Flash modes Auto Flash Discharge, Auto Flash + Red-eye Reduction, Flash On, Flash On + Red-eye Reduction, Slow-speed Sync, Slow-speed Sync + Red-eye, P-TTL, Trailing Curtain Sync, Contrast-control-sync, High-speed sync, Wireless sync (available with dedicated external flash) Auto, Red-Eye, Slow, Red-Eye Slow, Rear curtain, wireless
Hot shoe
AE bracketing
White balance bracketing
Maximum flash sync 1/180s 1/180s
Exposure
Multisegment exposure
Average exposure
Spot exposure
Partial exposure
AF area exposure
Center weighted exposure
Video features
Video resolutions 1920 x 1080 (60i, 50i, 30p, 25p, 24p), 1280 x 720 (60p, 50p, 30p, 25p, 24p) -
Highest video resolution 1920x1080 None
Video data format MPEG-4, H.264 -
Mic jack
Headphone jack
Connectivity
Wireless Optional None
Bluetooth
NFC
HDMI
USB USB 3.0 (5 GBit/sec) USB 2.0 (480 Mbit/sec)
GPS BuiltIn None
Physical
Environmental seal
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 800g (1.76 lb) 800g (1.76 lb)
Physical dimensions 131 x 100 x 77mm (5.2" x 3.9" x 3.0") 142 x 101 x 72mm (5.6" x 4.0" x 2.8")
DXO scores
DXO All around score 80 68
DXO Color Depth score 23.6 23.1
DXO Dynamic range score 13.6 11.2
DXO Low light score 1106 714
Other
Battery life 720 images -
Battery form Battery Pack -
Battery model D-LI90 -
Self timer Yes ( 2 or 12 seconds) Yes (2 or 10 sec)
Time lapse shooting
Type of storage Dual SD/SDHC/SDXC SD/MMC/SDHC card
Storage slots Two 1
Launch cost $829 $850