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Pentax K-S2 vs Pentax K20D

Portability
64
Imaging
64
Features
82
Overall
71
Pentax K-S2 front
 
Pentax K20D front
Portability
59
Imaging
53
Features
52
Overall
52

Pentax K-S2 vs Pentax K20D Key Specs

Pentax K-S2
(Full Review)
  • 20MP - APS-C Sensor
  • 3" Fully Articulated Screen
  • ISO 100 - 51200
  • Sensor based Image Stabilization
  • No Anti-Alias Filter
  • 1/6000s Max Shutter
  • 1920 x 1080 video
  • Pentax KAF2 Mount
  • 678g - 123 x 91 x 73mm
  • Introduced February 2015
  • Succeeded the Pentax K-S1
Pentax K20D
(Full Review)
  • 15MP - APS-C Sensor
  • 2.7" Fixed Screen
  • ISO 100 - 3200 (Increase to 6400)
  • Sensor based Image Stabilization
  • No Video
  • Pentax KAF2 Mount
  • 800g - 142 x 101 x 70mm
  • Announced June 2008
  • Older Model is Pentax K10D
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Pentax K-S2 vs Pentax K20D Overview

Lets take a more detailed look at the Pentax K-S2 vs Pentax K20D, former being a Entry-Level DSLR while the latter is a Advanced DSLR and they are both built by Pentax. There exists a substantial gap between the sensor resolutions of the K-S2 (20MP) and K20D (15MP) but both cameras offer the same sensor sizes (APS-C).

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The K-S2 was revealed 6 years later than the K20D and that is quite a big difference as far as technology is concerned. Both the cameras have different body design with the Pentax K-S2 being a Compact SLR camera and the Pentax K20D being a Mid-size SLR camera.

Before we go into a in-depth comparison, here is a simple highlight of how the K-S2 scores against the K20D with respect to portability, imaging, features and an overall rating.

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Reasons to pick Pentax K-S2 over the Pentax K20D

 K-S2 K20D 
AnnouncedFebruary 2015June 2008Fresher by 81 months
Screen typeFully ArticulatedFixed Fully Articulating screen
Screen dimensions3"2.7"Bigger screen (+0.3")
Screen resolution921k230kSharper screen (+691k dot)
Selfie screen Take selfies

Reasons to pick Pentax K20D over the Pentax K-S2

 K20D K-S2 

Common features in the Pentax K-S2 and Pentax K20D

 K-S2 K20D 
Manually focus Very precise focus
Touch screen Neither provides Touch screen

Pentax K-S2 vs Pentax K20D Physical Comparison

If you're aiming to carry your camera frequently, you will need to take into account its weight and volume. The Pentax K-S2 provides physical measurements of 123mm x 91mm x 73mm (4.8" x 3.6" x 2.9") with a weight of 678 grams (1.49 lbs) while the Pentax K20D has sizing of 142mm x 101mm x 70mm (5.6" x 4.0" x 2.8") and a weight of 800 grams (1.76 lbs).

Take a look at the Pentax K-S2 vs Pentax K20D in our brand new Camera plus Lens Size Comparison Tool. Camera Size Comparison with Lenses

Take into account, the weight of an ILC will change based on the lens you choose during that time. Following is a front view proportions comparison of the K-S2 and the K20D.

Pentax K-S2 vs Pentax K20D size comparison

Using dimensions and weight, the portability score of the K-S2 and K20D is 64 and 59 respectively.

Pentax K-S2 vs Pentax K20D top view buttons comparison

Pentax K-S2 vs Pentax K20D Sensor Comparison

Typically, it is tough to see the difference between sensor sizing purely by looking at technical specs. The photograph here will help provide you a more clear sense of the sensor measurements in the K-S2 and K20D.

As you can tell, both the cameras provide the same sensor dimensions albeit not the same MP. You can expect the Pentax K-S2 to give you extra detail because of its extra 5MP. Higher resolution can also help you crop photographs more aggressively. The more modern K-S2 is going to have a benefit in sensor tech.

Pentax K-S2 vs Pentax K20D sensor size comparison

Pentax K-S2 vs Pentax K20D Screen and ViewFinder

Pentax K-S2 vs Pentax K20D Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Portrait photography with Pentax K-S2
Portrait photography with Pentax K20D
78
has manual focus
good MP (20 megapixels)
decent sensor size (APS-C)
provides face detection autofocus
exports RAW files
71
manual focus
sensor resolution is decent (15 megapixels)
sensor size is good (APS-C)
delivers RAW formats
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Street Comparison

Pentax K-S2 as a Street photography camera
Pentax K20D as a Street photography camera
72
fully articulated screen
has image stabilization (Sensor based)
decent sensor size (APS-C)
exports RAW files
environment proof
above average ISO range (51,200)
more heavy than others in class (678g)
65
built in image stabilization (Sensor based)
sensor size is good (APS-C)
delivers RAW formats
weather proofing
screen is fixed
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Sports Comparison

Pentax K-S2 as a Sports photography camera
Pentax K20D as a Sports photography camera
70
great max shutter speed (1/6,000 seconds)
has image stabilization (Sensor based)
good MP (20 megapixels)
decent sensor size (APS-C)
provides tracking autofocus
environment proof
has phase detect autofocus
max fps low (5.4 frames/s)
not so great battery power (410 CIPA)
68
built in image stabilization (Sensor based)
sensor resolution is decent (15MP)
sensor size is good (APS-C)
weather proofing
supports phase detect auto focus
very slow continuous shooting (3.0 frames/s)
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Travel Comparison

Pentax K-S2 Travel photography factors
Pentax K20D Travel photography factors
65
environment proof
good MP (20 megapixels)
has built in flash
selfie friendly display
not so great battery power (410 per charge)
more heavy than others in class (678g)
64
weather proofing
sensor resolution is decent (15MP)
has built in flash
screen is not selfie friendly
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Landscape Comparison

Landscape photography with Pentax K-S2
Landscape photography with Pentax K20D
77
has manual focus
switch lenses (Pentax KAF2 mount)
screen size is good (3")
has image stabilization (Sensor based)
good MP (20MP)
decent sensor size (APS-C)
doesnt have anti aliasing filter
above average ISO range (51,200)
exports RAW files
environment proof
not so great battery power (410 per charge)
70
manual focus
change lenses (Pentax KAF2 mount)
built in image stabilization (Sensor based)
sensor resolution is decent (15 megapixels)
sensor size is good (APS-C)
delivers RAW formats
weather proofing
tiny screen (2.7 inches)
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Vlogging Comparison

Pentax K-S2 as a Vlogging camera
Pentax K20D as a Vlogging camera
71
selfie friendly display
has image stabilization (Sensor based)
provides face detection autofocus
high quality video (1920 x 1080 pixels)
has external microphone socket
more heavy than others in class (678 grams)
9
no video recording
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Pentax K-S2 vs Pentax K20D Specifications

Detailed spec comparison table for Pentax K-S2 and Pentax K20D
 Pentax K-S2Pentax K20D
General Information
Make Pentax Pentax
Model type Pentax K-S2 Pentax K20D
Class Entry-Level DSLR Advanced DSLR
Introduced 2015-02-10 2008-06-25
Physical type Compact SLR Mid-size SLR
Sensor Information
Processor Chip PRIME MII -
Sensor type CMOS CMOS
Sensor size APS-C APS-C
Sensor measurements 23.5 x 15.6mm 23.4 x 15.6mm
Sensor surface area 366.6mm² 365.0mm²
Sensor resolution 20 megapixels 15 megapixels
Anti alias filter
Aspect ratio 3:2 3:2
Highest Possible resolution 5472 x 3648 4672 x 3104
Maximum native ISO 51200 3200
Maximum enhanced ISO - 6400
Min native ISO 100 100
RAW photos
Autofocusing
Focus manually
Touch to focus
Continuous AF
Single AF
Tracking AF
AF selectice
AF center weighted
AF multi area
Live view AF
Face detection focusing
Contract detection focusing
Phase detection focusing
Total focus points 11 11
Lens
Lens support Pentax KAF2 Pentax KAF2
Total lenses 151 151
Crop factor 1.5 1.5
Screen
Screen type Fully Articulated Fixed Type
Screen diagonal 3 inches 2.7 inches
Screen resolution 921k dots 230k dots
Selfie friendly
Liveview
Touch friendly
Viewfinder Information
Viewfinder type Optical (pentaprism) Optical (pentaprism)
Viewfinder coverage 100 percent 95 percent
Viewfinder magnification 0.64x 0.64x
Features
Minimum shutter speed 30 seconds 30 seconds
Fastest shutter speed 1/6000 seconds 1/4000 seconds
Continuous shutter rate 5.4fps 3.0fps
Shutter priority
Aperture priority
Manual mode
Exposure compensation Yes Yes
Change WB
Image stabilization
Integrated flash
Flash distance 12.00 m (at ISO 100) 13.00 m (at ISO 100)
Flash settings Auto, auto w/redeye reduction, flash on, flash on + redeye reduction, slow sync, trailing curtain sync, manual flash Auto, Red-Eye, Slow, Red-Eye Slow, Rear curtain, wireless
External flash
Auto exposure bracketing
White balance bracketing
Fastest flash synchronize - 1/180 seconds
Exposure
Multisegment metering
Average metering
Spot metering
Partial metering
AF area metering
Center weighted metering
Video features
Video resolutions 1920 x 1080 (30p, 25p, 24p), 1280 x 720 (60p, 50p) -
Maximum video resolution 1920x1080 None
Video format MPEG-4, H.264 -
Microphone port
Headphone port
Connectivity
Wireless Built-In None
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS Optional None
Physical
Environment sealing
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 678g (1.49 pounds) 800g (1.76 pounds)
Physical dimensions 123 x 91 x 73mm (4.8" x 3.6" x 2.9") 142 x 101 x 70mm (5.6" x 4.0" x 2.8")
DXO scores
DXO Overall rating not tested 65
DXO Color Depth rating not tested 22.9
DXO Dynamic range rating not tested 11.1
DXO Low light rating not tested 639
Other
Battery life 410 pictures -
Type of battery Battery Pack -
Battery ID D-LI109 D-LI50
Self timer Yes (2 or 12 secs) Yes (2 or 10 sec)
Time lapse feature
Type of storage SD/SDHC/SDXC SD/MMC/SDHC card
Card slots One One
Price at release $581 $700