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Olympus E-M10 vs Pentax K100D S

Portability
82
Imaging
53
Features
73
Overall
61
Olympus OM-D E-M10 front
 
Pentax K100D Super front
Portability
65
Imaging
45
Features
38
Overall
42

Olympus E-M10 vs Pentax K100D S Key Specs

Olympus E-M10
(Full Review)
  • 16MP - Four Thirds Sensor
  • 3" Tilting Screen
  • ISO 200 - 25600
  • Sensor based Image Stabilization
  • 1920 x 1080 video
  • Micro Four Thirds Mount
  • 396g - 119 x 82 x 46mm
  • Revealed March 2014
  • New Model is Olympus E-M10 II
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
  • Revealed June 2007
  • Previous Model is Pentax K100D
  • Refreshed by Pentax K200D
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Olympus E-M10 vs Pentax K100D S Overview

Below, we will be reviewing the Olympus E-M10 and Pentax K100D S, former is a Entry-Level Mirrorless while the latter is a Entry-Level DSLR by companies Olympus and Pentax. There is a sizable difference between the resolutions of the E-M10 (16MP) and K100D S (6MP) and the E-M10 (Four Thirds) and K100D S (APS-C) use totally different sensor dimensions.

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The E-M10 was brought out 6 years after the K100D S which is quite a significant difference as far as tech is concerned. Each of these cameras come with different body type with the Olympus E-M10 being a SLR-style mirrorless camera and the Pentax K100D S being a Compact SLR camera.

Before getting in to a full comparison, below is a concise view of how the E-M10 matches up against the K100D S when it comes to portability, imaging, features and an overall mark.

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Reasons to pick Olympus E-M10 over the Pentax K100D S

 E-M10 K100D S 
RevealedMarch 2014June 2007Newer by 82 months
Screen typeTiltingFixed Tilting screen
Screen dimension3"2.5"Bigger screen (+0.5")
Screen resolution1037k210kCrisper screen (+827k dot)
Touch friendly screen Quickly navigate

Reasons to pick Pentax K100D S over the Olympus E-M10

 K100D S E-M10 

Common features in the Olympus E-M10 and Pentax K100D S

 E-M10 K100D S 
Manual focus Dial exact focusing
Selfie screen No selfie screen

Olympus E-M10 vs Pentax K100D S Physical Comparison

For those who are intending to travel with your camera regularly, you're going to have to factor its weight and size. The Olympus E-M10 features external dimensions of 119mm x 82mm x 46mm (4.7" x 3.2" x 1.8") along with a weight of 396 grams (0.87 lbs) and the Pentax K100D S has specifications of 129mm x 91mm x 71mm (5.1" x 3.6" x 2.8") accompanied by a weight of 646 grams (1.42 lbs).

See the Olympus E-M10 and Pentax K100D S in our completely new Camera plus Lens Size Comparison Tool. Camera Size Comparison with Lenses

Take into consideration, the weight of an ILC will change dependant on the lens you are working with at that moment. Here is the front view dimension comparison of the E-M10 compared to the K100D S.

Olympus E-M10 vs Pentax K100D S size comparison

Looking at size and weight, the portability rating of the E-M10 and K100D S is 82 and 65 respectively.

Olympus E-M10 vs Pentax K100D S top view buttons comparison

Olympus E-M10 vs Pentax K100D S Sensor Comparison

Generally, its difficult to see the difference between sensor dimensions just by looking at a spec sheet. The image here might offer you a far better sense of the sensor dimensions in the E-M10 and K100D S.

As you can see, the 2 cameras have got different megapixels and different sensor dimensions. The E-M10 featuring a tinier sensor will make getting shallower DOF trickier and the Olympus E-M10 will give you more detail having its extra 10MP. Higher resolution will enable you to crop pictures much more aggressively. The more recent E-M10 is going to have an advantage in sensor tech.

Olympus E-M10 vs Pentax K100D S sensor size comparison

Olympus E-M10 vs Pentax K100D S Screen and ViewFinder

Olympus E-M10 vs Pentax K100D S Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Portrait photography with Olympus E-M10
Portrait photography with Pentax K100D S
71
manual focus
resolution is good (16 megapixels)
decent sensor size (Four Thirds)
provides face detect focusing
supports RAW files
51
you can focus manually
sensor size is good (APS-C)
supports RAW files
does not have liveview
low megapixels (6 megapixels)
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Street Comparison

Olympus E-M10 Street photography highlights
Pentax K100D S Street photography highlights
77
screen tilts
has image stabilization (Sensor based)
decent sensor size (Four Thirds)
supports RAW files
includes focus via touch
very good high ISO (25,600)
more heavy than competition in class (396g)
64
has image stabilization (Sensor based)
sensor size is good (APS-C)
supports RAW files
no moving screen
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Sports Comparison

Olympus E-M10 as a Sports photography camera
Pentax K100D S as a Sports photography camera
66
has image stabilization (Sensor based)
resolution is good (16 megapixels)
decent sensor size (Four Thirds)
provides tracking focus
doesn't have phase detect AF
47
has image stabilization (Sensor based)
sensor size is good (APS-C)
sensor has phase detect auto focus
does not have liveview
max frames per second very slow (3.0 frames per second)
low megapixels (6 megapixels)
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Travel Comparison

Olympus E-M10 Travel photography advice
Pentax K100D S Travel photography advice
67
includes focus via touch
resolution is good (16 megapixels)
built-in flash
more heavy than competition in class (396g)
does not feature selfie friendly display
45
built-in flash
no Time Lapse function
low megapixels (6MP)
screen isn't selfie friendly
Photography Glossary

Landscape Comparison

Olympus E-M10 Landscape photography information
Pentax K100D S Landscape photography information
79
manual focus
switch lenses (Micro Four Thirds mount)
good sized screen (3 inch)
has image stabilization (Sensor based)
resolution is good (16 megapixels)
decent sensor size (Four Thirds)
very good high ISO (25,600)
supports RAW files
52
you can focus manually
change lenses (Pentax KAF2 mount)
has image stabilization (Sensor based)
sensor size is good (APS-C)
supports RAW files
tiny screen (2.5")
does not have liveview
low megapixels (6MP)
no Time Lapse function
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Vlogging Comparison

Olympus E-M10 Vlogging factors
Pentax K100D S Vlogging factors
33
touch screen
has image stabilization (Sensor based)
provides face detect focusing
high res video (1920 x 1080 pixels)
does not feature selfie friendly display
missing microphone port
more heavy than competition in class (396g)
9
can't shoot video
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Olympus E-M10 vs Pentax K100D S Specifications

Detailed spec comparison table for Olympus E-M10 and Pentax K100D S
 Olympus OM-D E-M10Pentax K100D Super
General Information
Company Olympus Pentax
Model Olympus OM-D E-M10 Pentax K100D Super
Class Entry-Level Mirrorless Entry-Level DSLR
Revealed 2014-03-18 2007-06-28
Body design SLR-style mirrorless Compact SLR
Sensor Information
Processor TruePic VII -
Sensor type CMOS CCD
Sensor size Four Thirds APS-C
Sensor dimensions 17.3 x 13mm 23.5 x 15.7mm
Sensor surface area 224.9mm² 369.0mm²
Sensor resolution 16 megapixels 6 megapixels
Anti aliasing filter
Aspect ratio 1:1, 4:3, 3:2 and 16:9 3:2
Max resolution 4608 x 3456 3008 x 2008
Max native ISO 25600 3200
Minimum native ISO 200 200
RAW files
Autofocusing
Focus manually
Touch focus
Continuous autofocus
Single autofocus
Autofocus tracking
Selective autofocus
Autofocus center weighted
Autofocus multi area
Autofocus live view
Face detection autofocus
Contract detection autofocus
Phase detection autofocus
Number of focus points 81 11
Lens
Lens mount Micro Four Thirds Pentax KAF2
Available lenses 107 151
Crop factor 2.1 1.5
Screen
Screen type Tilting Fixed Type
Screen size 3 inch 2.5 inch
Screen resolution 1,037k dot 210k dot
Selfie friendly
Liveview
Touch operation
Screen technology TFT LCD -
Viewfinder Information
Viewfinder Electronic Optical (pentamirror)
Viewfinder resolution 1,440k dot -
Viewfinder coverage 100 percent 96 percent
Viewfinder magnification 0.58x 0.57x
Features
Min shutter speed 60 secs 30 secs
Max shutter speed 1/4000 secs 1/4000 secs
Continuous shutter speed 8.0 frames per sec 3.0 frames per sec
Shutter priority
Aperture priority
Manual exposure
Exposure compensation Yes Yes
Change white balance
Image stabilization
Integrated flash
Flash range 5.80 m (ISO100) -
Flash settings Flash Auto, Redeye, Fill-in, Flash Off, Red-eye Slow sync.(1st curtain), Slow sync.(1st curtain), Slow sync.(2nd curtain), Manual(1/1(FULL)~1/64) Auto, On, Off, Red-eye reduction
Hot shoe
Auto exposure bracketing
WB bracketing
Max flash sync 1/250 secs 1/180 secs
Exposure
Multisegment metering
Average metering
Spot metering
Partial metering
AF area metering
Center weighted metering
Video features
Video resolutions 1920 x 1080 (30p), 1280 x 720 (30p), 640 x 480 (30 fps) -
Max video resolution 1920x1080 None
Video data format H.264, Motion JPEG -
Mic jack
Headphone jack
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 seal
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 396 gr (0.87 pounds) 646 gr (1.42 pounds)
Dimensions 119 x 82 x 46mm (4.7" x 3.2" x 1.8") 129 x 91 x 71mm (5.1" x 3.6" x 2.8")
DXO scores
DXO Overall score 72 not tested
DXO Color Depth score 22.8 not tested
DXO Dynamic range score 12.3 not tested
DXO Low light score 884 not tested
Other
Battery life 320 images -
Battery form Battery Pack -
Battery model BLS-5 4 x AA
Self timer Yes (12 sec., 2 sec.,custom (Waiting time 1-30sec.,Shooting interval 0.5/1/2/3sec.,Number of shots 1-10)) Yes (2 or 12 sec)
Time lapse feature
Type of storage SD/SDHC/SDXC SD/SDHC card
Storage slots Single Single
Pricing at release $600 $520