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Pentax K-3 II vs Pentax K100D S

Portability
59
Imaging
66
Features
84
Overall
73
Pentax K-3 II front
 
Pentax K100D Super front
Portability
65
Imaging
45
Features
38
Overall
42

Pentax K-3 II vs Pentax K100D S Key Specs

Pentax K-3 II
(Full Review)
  • 24MP - APS-C Sensor
  • 3.2" Fixed Display
  • 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
  • Announced April 2015
  • Previous Model is Pentax K-3
Pentax K100D S
(Full Review)
  • 6MP - APS-C Sensor
  • 2.5" Fixed Screen
  • ISO 200 - 3200
  • Sensor based Image Stabilization
  • No Video
  • Pentax KAF2 Mount
  • 646g - 129 x 91 x 71mm
  • Introduced June 2007
  • Superseded the Pentax K100D
  • Successor is Pentax K200D
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Pentax K-3 II vs Pentax K100D S Overview

Let's look a bit more closely at the Pentax K-3 II versus Pentax K100D S, former is a Advanced DSLR while the latter is a Entry-Level DSLR and they are both created by Pentax. There is a considerable difference between the image resolutions of the K-3 II (24MP) and K100D S (6MP) but both cameras have the same sensor size (APS-C).

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The K-3 II was brought out 7 years after the K100D S which is quite a large difference as far as tech is concerned. Each of these cameras have different body design with the Pentax K-3 II being a Mid-size SLR camera and the Pentax K100D S being a Compact SLR camera.

Before we go right into a comprehensive comparison, here is a concise summary of how the K-3 II grades against the K100D S when considering portability, imaging, features and an overall mark.

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Reasons to pick Pentax K-3 II over the Pentax K100D S

 K-3 II K100D S 
IntroducedApril 2015June 2007Newer by 96 months
Screen dimensions3.2"2.5"Bigger screen (+0.7")
Screen resolution1037k210kCrisper screen (+827k dot)

Reasons to pick Pentax K100D S over the Pentax K-3 II

 K100D S K-3 II 

Common features in the Pentax K-3 II and Pentax K100D S

 K-3 II K100D S 
Manual focus Very accurate focusing
Screen typeFixed Fixed Fixed screen
Selfie screen Neither includes selfie screen
Touch friendly screen Neither includes Touch friendly screen

Pentax K-3 II vs Pentax K100D S Physical Comparison

In case you're going to travel with your camera, you will want to factor in its weight and measurements. The Pentax K-3 II features outside measurements of 131mm x 100mm x 77mm (5.2" x 3.9" x 3.0") having a weight of 800 grams (1.76 lbs) whilst the Pentax K100D S has proportions of 129mm x 91mm x 71mm (5.1" x 3.6" x 2.8") and a weight of 646 grams (1.42 lbs).

Examine the Pentax K-3 II versus Pentax K100D S in our completely new Camera plus Lens Size Comparison Tool. Camera Size Comparison with Lenses

Always remember, the weight of an ILC will change based on the lens you have chosen at that moment. Underneath is a front view size comparison of the K-3 II against the K100D S.

Pentax K-3 II vs Pentax K100D S size comparison

Taking into consideration size and weight, the portability grade of the K-3 II and K100D S is 59 and 65 respectively.

Pentax K-3 II vs Pentax K100D S top view buttons comparison

Pentax K-3 II vs Pentax K100D S Sensor Comparison

Generally, it is hard to visualize the difference between sensor dimensions purely by looking at specs. The pic below may give you a greater sense of the sensor measurements in the K-3 II and K100D S.

All in all, the two cameras have the same sensor dimensions albeit different megapixels. You can expect the Pentax K-3 II to give you extra detail having its extra 18MP. Higher resolution can also help you crop shots a bit more aggressively. The more recent K-3 II provides a benefit in sensor innovation.

Pentax K-3 II vs Pentax K100D S sensor size comparison

Pentax K-3 II vs Pentax K100D S Screen and ViewFinder

Pentax K-3 II vs Pentax K100D S Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Pentax K-3 II as a Portrait photography camera
Pentax K100D S as a Portrait photography camera
79
manual focus
megapixel count good (24 megapixels)
sensor size is decent (APS-C)
comes with face detection autofocus
exports RAW formats
51
manual focus
sensor size is decent (APS-C)
saves RAW files
no liveview
low resolution (6MP)
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Street Comparison

Pentax K-3 II Street photography information
Pentax K100D S Street photography information
69
built in image stabilization (Sensor based)
sensor size is decent (APS-C)
exports RAW formats
environment proofing
great ISO range (51,200)
screen is fixed
64
built in image stabilization (Sensor based)
sensor size is decent (APS-C)
saves RAW files
fixed screen
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Sports Comparison

Pentax K-3 II Sports photography details
Pentax K100D S Sports photography details
76
great max shutter speed (1/8,000 seconds)
built in image stabilization (Sensor based)
megapixel count good (24 megapixels)
sensor size is decent (APS-C)
comes with tracking autofocus
environment proofing
has phase detect autofocus
low battery power (720 per charge)
47
built in image stabilization (Sensor based)
sensor size is decent (APS-C)
comes with phase detect auto focus
no liveview
painfully slow continuous shooting (3.0 fps)
low resolution (6MP)
Photography Glossary

Travel Comparison

Pentax K-3 II Travel photography advice
Pentax K100D S Travel photography advice
56
environment proofing
megapixel count good (24MP)
low battery power (720 CIPA)
doesn't posses selfie friendly display
45
flash built-in
doesn't have Timelapse function
low resolution (6 megapixels)
display isn't selfie friendly
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Landscape Comparison

Landscape photography with Pentax K-3 II
Landscape photography with Pentax K100D S
78
manual focus
switch lenses (Pentax KAF2 mount)
screen is a good size (3.2")
built in image stabilization (Sensor based)
megapixel count good (24MP)
sensor size is decent (APS-C)
does not have low pass filter
great ISO range (51,200)
exports RAW formats
environment proofing
2 card slots
low battery power (720 shots)
52
manual focus
interchangeable lenses (Pentax KAF2 mount)
built in image stabilization (Sensor based)
sensor size is decent (APS-C)
saves RAW files
screen is somewhat small (2.5")
no liveview
low resolution (6 megapixels)
doesn't have Timelapse function
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Vlogging Comparison

Pentax K-3 II Vlogging advice
Pentax K100D S Vlogging advice
34
built in image stabilization (Sensor based)
comes with face detection autofocus
good video quality (1920 x 1080 pxls)
has external mic support
doesn't posses selfie friendly display
9
no video
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Pentax K-3 II vs Pentax K100D S Specifications

Detailed spec comparison table for Pentax K-3 II and Pentax K100D S
 Pentax K-3 IIPentax K100D Super
General Information
Brand Name Pentax Pentax
Model Pentax K-3 II Pentax K100D Super
Category Advanced DSLR Entry-Level DSLR
Announced 2015-04-23 2007-06-28
Physical type Mid-size SLR Compact SLR
Sensor Information
Processor Prime III -
Sensor type CMOS CCD
Sensor size APS-C APS-C
Sensor measurements 23.5 x 15.6mm 23.5 x 15.7mm
Sensor area 366.6mm² 369.0mm²
Sensor resolution 24 megapixels 6 megapixels
Anti aliasing filter
Aspect ratio 3:2 3:2
Full resolution 6016 x 4000 3008 x 2008
Max native ISO 51200 3200
Minimum native ISO 100 200
RAW pictures
Autofocusing
Manual focus
Touch to focus
AF continuous
Single AF
Tracking AF
Selective AF
AF center weighted
Multi area AF
AF live view
Face detect AF
Contract detect AF
Phase detect AF
Number of focus points 27 11
Cross focus points 25 -
Lens
Lens mount Pentax KAF2 Pentax KAF2
Available lenses 151 151
Crop factor 1.5 1.5
Screen
Type of display Fixed Type Fixed Type
Display size 3.2" 2.5"
Resolution of display 1,037k dots 210k dots
Selfie friendly
Liveview
Touch functionality
Viewfinder Information
Viewfinder type Optical (pentaprism) Optical (pentamirror)
Viewfinder coverage 100 percent 96 percent
Viewfinder magnification 0.64x 0.57x
Features
Slowest shutter speed 30 secs 30 secs
Maximum shutter speed 1/8000 secs 1/4000 secs
Continuous shooting rate 8.3 frames/s 3.0 frames/s
Shutter priority
Aperture priority
Expose Manually
Exposure compensation Yes Yes
Change WB
Image stabilization
Built-in flash
Flash range no built-in flash -
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, On, Off, Red-eye reduction
External flash
AE bracketing
WB bracketing
Maximum flash synchronize 1/180 secs 1/180 secs
Exposure
Multisegment
Average
Spot
Partial
AF area
Center weighted
Video features
Supported video resolutions 1920 x 1080 (60i, 50i, 30p, 25p, 24p), 1280 x 720 (60p, 50p, 30p, 25p, 24p) -
Max video resolution 1920x1080 None
Video data format MPEG-4, H.264 -
Microphone support
Headphone support
Connectivity
Wireless Optional None
Bluetooth
NFC
HDMI
USB USB 3.0 (5 GBit/sec) USB 2.0 (480 Mbit/sec)
GPS BuiltIn None
Physical
Environment sealing
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 800 grams (1.76 lbs) 646 grams (1.42 lbs)
Physical dimensions 131 x 100 x 77mm (5.2" x 3.9" x 3.0") 129 x 91 x 71mm (5.1" x 3.6" x 2.8")
DXO scores
DXO All around score 80 not tested
DXO Color Depth score 23.6 not tested
DXO Dynamic range score 13.6 not tested
DXO Low light score 1106 not tested
Other
Battery life 720 images -
Style of battery Battery Pack -
Battery model D-LI90 4 x AA
Self timer Yes ( 2 or 12 seconds) Yes (2 or 12 sec)
Time lapse shooting
Storage type Dual SD/SDHC/SDXC SD/SDHC card
Card slots Dual 1
Price at launch $829 $520