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Pentax K-S2 vs Pentax K100D

Portability
64
Imaging
64
Features
82
Overall
71
Pentax K-S2 front
 
Pentax K100D front
Portability
64
Imaging
45
Features
36
Overall
41

Pentax K-S2 vs Pentax K100D 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 Maximum Shutter
  • 1920 x 1080 video
  • Pentax KAF2 Mount
  • 678g - 123 x 91 x 73mm
  • Introduced February 2015
  • Superseded the Pentax K-S1
Pentax K100D
(Full Review)
  • 6MP - APS-C Sensor
  • 2.5" Fixed Screen
  • ISO 200 - 3200
  • Sensor based Image Stabilization
  • No Video
  • Pentax KAF Mount
  • 660g - 129 x 93 x 70mm
  • Introduced December 2006
  • Renewed by Pentax K100D S
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Pentax K-S2 vs Pentax K100D Overview

Its time to look a bit more in depth at the Pentax K-S2 versus Pentax K100D, both Entry-Level DSLR cameras and both are designed by Pentax. There exists a sizable gap among the resolutions of the K-S2 (20MP) and K100D (6MP) but both cameras offer the same sensor size (APS-C).

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The K-S2 was brought out 8 years later than the K100D and that is a fairly significant difference as far as camera technology is concerned. The two cameras have the same body design (Compact SLR).

Before we go right into a in depth comparison, here is a simple summary of how the K-S2 scores vs the K100D in relation to portability, imaging, features and an overall grade.

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Reasons to pick Pentax K-S2 over the Pentax K100D

 K-S2 K100D 
IntroducedFebruary 2015December 2006More recent by 100 months
Screen typeFully ArticulatedFixed Fully Articulating screen
Screen dimensions3"2.5"Bigger screen (+0.5")
Screen resolution921k210kCrisper screen (+711k dot)
Selfie screen Take selfies

Reasons to pick Pentax K100D over the Pentax K-S2

 K100D K-S2 

Common features in the Pentax K-S2 and Pentax K100D

 K-S2 K100D 
Focus manually Very precise focusing
Touch screen Lacking Touch screen

Pentax K-S2 vs Pentax K100D Physical Comparison

For anyone who is planning to lug around your camera regularly, you're going to have to consider its weight and dimensions. The Pentax K-S2 enjoys outer dimensions of 123mm x 91mm x 73mm (4.8" x 3.6" x 2.9") with a weight of 678 grams (1.49 lbs) whilst the Pentax K100D has dimensions of 129mm x 93mm x 70mm (5.1" x 3.7" x 2.8") accompanied by a weight of 660 grams (1.46 lbs).

See the Pentax K-S2 versus Pentax K100D in our brand new Camera & Lens Size Comparison Tool. Camera Size Comparison with Lenses

Keep in mind, the weight of an ILC will differ based on the lens you are using during that time. Underneath is a front view over all size comparison of the K-S2 vs the K100D.

Pentax K-S2 vs Pentax K100D size comparison

Considering dimensions and weight, the portability grade of the K-S2 and K100D is 64 and 64 respectively.

Pentax K-S2 vs Pentax K100D top view buttons comparison

Pentax K-S2 vs Pentax K100D Sensor Comparison

Sometimes, it's hard to visualise the contrast in sensor measurements simply by going through technical specs. The graphic below will provide you a far better sense of the sensor sizes in the K-S2 and K100D.

As you can tell, both the cameras have the same sensor dimensions albeit not the same megapixels. You can count on the Pentax K-S2 to produce more detail having its extra 14MP. Higher resolution can also enable you to crop photographs a bit more aggressively. The younger K-S2 is going to have an edge in sensor tech.

Pentax K-S2 vs Pentax K100D sensor size comparison

Pentax K-S2 vs Pentax K100D Screen and ViewFinder

Pentax K-S2 vs Pentax K100D Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Pentax K-S2 Portrait photography factors
Pentax K100D Portrait photography factors
78
focusing manually
decent megapixels (20MP)
good sensor size (APS-C)
supports face detect focus
delivers RAW formats
51
focusing manually
sensor size is nice (APS-C)
delivers RAW formats
doesn't have liveview
low resolution sensor (6MP)
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Street Comparison

Pentax K-S2 Street photography factors
Pentax K100D Street photography factors
72
screen articulates
built in image stabilization (Sensor based)
good sensor size (APS-C)
delivers RAW formats
environment sealing
great high ISO (51,200)
heavier than competitors (678g)
58
has image stabilization (Sensor based)
sensor size is nice (APS-C)
delivers RAW formats
screen does not articulate
heavier than others (660 grams)
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Sports Comparison

Pentax K-S2 as a Sports photography camera
Pentax K100D as a Sports photography camera
70
max shutter speed is good (1/6,000s)
built in image stabilization (Sensor based)
decent megapixels (20MP)
good sensor size (APS-C)
supports tracking focus
environment sealing
supports phase detect auto focus
low frames per second (5.4 frames per second)
not so great battery life (410 per charge)
47
has image stabilization (Sensor based)
sensor size is nice (APS-C)
comes with phase detect autofocus
doesn't have liveview
slow fps (3.0 frames/s)
low resolution sensor (6 megapixels)
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Travel Comparison

Pentax K-S2 Travel photography features
Pentax K100D Travel photography features
65
environment sealing
decent megapixels (20MP)
flash built-in
display is selfie friendly
not so great battery life (410 shots)
heavier than competitors (678 grams)
42
built-in flash
missing Time Lapse function
heavier than others (660g)
low resolution sensor (6 megapixels)
screen is not selfie friendly
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Landscape Comparison

Pentax K-S2 Landscape photography factors
Pentax K100D Landscape photography factors
77
focusing manually
swap lenses (Pentax KAF2 mount)
screen size is decent (3")
built in image stabilization (Sensor based)
decent megapixels (20 megapixels)
good sensor size (APS-C)
doesnt have low pass filter
great high ISO (51,200)
delivers RAW formats
environment sealing
not so great battery life (410 CIPA)
52
focusing manually
change lenses (Pentax KAF mount)
has image stabilization (Sensor based)
sensor size is nice (APS-C)
delivers RAW formats
tiny screen (2.5 inch)
doesn't have liveview
low resolution sensor (6 megapixels)
missing Time Lapse function
Photography Glossary

Vlogging Comparison

Pentax K-S2 Vlogging features
Pentax K100D Vlogging features
71
display is selfie friendly
built in image stabilization (Sensor based)
supports face detect focus
great video quality (1920 x 1080 pixels)
comes with mic support
heavier than competitors (678g)
9
can't record video
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Pentax K-S2 vs Pentax K100D Specifications

Detailed spec comparison table for Pentax K-S2 and Pentax K100D
 Pentax K-S2Pentax K100D
General Information
Brand Name Pentax Pentax
Model type Pentax K-S2 Pentax K100D
Category Entry-Level DSLR Entry-Level DSLR
Introduced 2015-02-10 2006-12-03
Physical type Compact SLR Compact SLR
Sensor Information
Chip PRIME MII -
Sensor type CMOS CCD
Sensor size APS-C APS-C
Sensor dimensions 23.5 x 15.6mm 23.5 x 15.7mm
Sensor surface area 366.6mm² 369.0mm²
Sensor resolution 20 megapixel 6 megapixel
Anti alias filter
Aspect ratio 3:2 3:2
Max resolution 5472 x 3648 3008 x 2008
Max native ISO 51200 3200
Lowest native ISO 100 200
RAW files
Autofocusing
Focus manually
Autofocus touch
Autofocus continuous
Single autofocus
Autofocus tracking
Autofocus selectice
Center weighted autofocus
Multi area autofocus
Live view autofocus
Face detection autofocus
Contract detection autofocus
Phase detection autofocus
Total focus points 11 11
Lens
Lens support Pentax KAF2 Pentax KAF
Amount of lenses 151 151
Focal length multiplier 1.5 1.5
Screen
Screen type Fully Articulated Fixed Type
Screen size 3 inch 2.5 inch
Screen resolution 921 thousand dots 210 thousand dots
Selfie friendly
Liveview
Touch friendly
Viewfinder Information
Viewfinder Optical (pentaprism) Optical (pentamirror)
Viewfinder coverage 100% 96%
Viewfinder magnification 0.64x 0.57x
Features
Minimum shutter speed 30 secs 30 secs
Fastest shutter speed 1/6000 secs 1/4000 secs
Continuous shutter rate 5.4 frames per second 3.0 frames per second
Shutter priority
Aperture priority
Manual mode
Exposure compensation Yes Yes
Set white balance
Image stabilization
Integrated flash
Flash distance 12.00 m (at ISO 100) -
Flash modes Auto, auto w/redeye reduction, flash on, flash on + redeye reduction, slow sync, trailing curtain sync, manual flash Auto, On, Off, Red-eye reduction
External flash
AEB
WB bracketing
Fastest flash synchronize - 1/180 secs
Exposure
Multisegment exposure
Average exposure
Spot exposure
Partial exposure
AF area exposure
Center weighted exposure
Video features
Video resolutions 1920 x 1080 (30p, 25p, 24p), 1280 x 720 (60p, 50p) -
Max video resolution 1920x1080 None
Video data format MPEG-4, H.264 -
Mic support
Headphone support
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
Environmental sealing
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 678 gr (1.49 pounds) 660 gr (1.46 pounds)
Physical dimensions 123 x 91 x 73mm (4.8" x 3.6" x 2.9") 129 x 93 x 70mm (5.1" x 3.7" x 2.8")
DXO scores
DXO Overall rating not tested not tested
DXO Color Depth rating not tested not tested
DXO Dynamic range rating not tested not tested
DXO Low light rating not tested not tested
Other
Battery life 410 shots -
Battery style Battery Pack -
Battery ID D-LI109 4 x AA
Self timer Yes (2 or 12 secs) Yes (2 or 12 sec)
Time lapse feature
Type of storage SD/SDHC/SDXC SD/MMC card
Card slots 1 1
Launch pricing $581 $0