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Olympus E-M5 II vs Pentax K100D S

Portability
80
Imaging
53
Features
84
Overall
65
Olympus OM-D E-M5 II front
 
Pentax K100D Super front
Portability
65
Imaging
45
Features
38
Overall
42

Olympus E-M5 II vs Pentax K100D S Key Specs

Olympus E-M5 II
(Full Review)
  • 16MP - Four Thirds Sensor
  • 3" Fully Articulated Display
  • ISO 200 - 25600
  • Sensor based 5-axis Image Stabilization
  • 1/8000s Maximum Shutter
  • 1920 x 1080 video
  • Micro Four Thirds Mount
  • 469g - 124 x 85 x 45mm
  • Released February 2015
  • Older Model is Olympus E-M5
  • Renewed by Olympus E-M5 III
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
  • Released June 2007
  • Old Model is Pentax K100D
  • Successor is Pentax K200D
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Olympus E-M5 II vs Pentax K100D S Overview

Here, we will be reviewing the Olympus E-M5 II versus Pentax K100D S, one is a Advanced Mirrorless and the latter is a Entry-Level DSLR by rivals Olympus and Pentax. There exists a significant gap between the sensor resolutions of the E-M5 II (16MP) and K100D S (6MP) and the E-M5 II (Four Thirds) and K100D S (APS-C) have different sensor dimensions.

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The E-M5 II was released 7 years after the K100D S which is quite a sizable gap as far as technology is concerned. Each of these cameras feature different body design with the Olympus E-M5 II being a SLR-style mirrorless camera and the Pentax K100D S being a Compact SLR camera.

Before going straight to a more detailed comparison, here is a quick highlight of how the E-M5 II scores against the K100D S in terms of portability, imaging, features and an overall score.

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Reasons to pick Olympus E-M5 II over the Pentax K100D S

 E-M5 II K100D S 
ReleasedFebruary 2015June 2007More modern by 93 months
Screen typeFully ArticulatedFixed Fully Articulating screen
Screen size3"2.5"Bigger screen (+0.5")
Screen resolution1037k210kClearer screen (+827k dot)
Selfie screen Take selfies
Touch screen Quickly navigate

Reasons to pick Pentax K100D S over the Olympus E-M5 II

 K100D S E-M5 II 

Common features in the Olympus E-M5 II and Pentax K100D S

 E-M5 II K100D S 
Manual focus Dial precise focusing

Olympus E-M5 II vs Pentax K100D S Physical Comparison

If you're aiming to carry around your camera regularly, you are going to need to think about its weight and proportions. The Olympus E-M5 II has got exterior dimensions of 124mm x 85mm x 45mm (4.9" x 3.3" x 1.8") with a weight of 469 grams (1.03 lbs) while the Pentax K100D S has measurements of 129mm x 91mm x 71mm (5.1" x 3.6" x 2.8") along with a weight of 646 grams (1.42 lbs).

Check out the Olympus E-M5 II versus Pentax K100D S in the all new Camera and Lens Size Comparison Tool. Camera Size Comparison with Lenses

Keep in mind, the weight of an Interchangeable Lens Camera will vary depending on the lens you have chosen at that time. Underneath is a front view physical size comparison of the E-M5 II versus the K100D S.

Olympus E-M5 II vs Pentax K100D S size comparison

Taking into consideration dimensions and weight, the portability score of the E-M5 II and K100D S is 80 and 65 respectively.

Olympus E-M5 II vs Pentax K100D S top view buttons comparison

Olympus E-M5 II vs Pentax K100D S Sensor Comparison

Normally, it's difficult to picture the difference between sensor sizes only by checking specifications. The image here should provide you a far better sense of the sensor sizes in the E-M5 II and K100D S.

Plainly, both cameras come with different resolutions and different sensor sizes. The E-M5 II because of its tinier sensor is going to make shooting bokeh harder and the Olympus E-M5 II will give more detail as a result of its extra 10MP. Higher resolution can also enable you to crop shots a good deal more aggressively. The more modern E-M5 II provides an edge in sensor technology.

Olympus E-M5 II vs Pentax K100D S sensor size comparison

Olympus E-M5 II vs Pentax K100D S Screen and ViewFinder

Olympus E-M5 II vs Pentax K100D S Screen and Viewfinder comparison
Photography Glossary

Photography Type Scores

Portrait Comparison

Olympus E-M5 II Portrait photography details
Pentax K100D S Portrait photography details
71
focusing manually
MP count good (16 megapixels)
good sensor size (Four Thirds)
has face detection focusing
exports RAW files
51
focusing manually
nice sensor size (APS-C)
saves RAW formats
does not have liveview
sensor resolution low (6 megapixels)
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Street Comparison

Olympus E-M5 II Street photography factors
Pentax K100D S Street photography factors
82
fully articulated screen
built in image stabilization (Sensor based 5-axis)
good sensor size (Four Thirds)
exports RAW files
has focus by touch
environment proof
above average ISO range (25,600)
64
built in image stabilization (Sensor based)
nice sensor size (APS-C)
saves RAW formats
fixed screen
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Sports Comparison

Olympus E-M5 II Sports photography details
Pentax K100D S Sports photography details
65
high shutter speed (1/8,000s)
quiet shutter (1/16,000s)
built in image stabilization (Sensor based 5-axis)
MP count good (16 megapixels)
good sensor size (Four Thirds)
has tracking autofocus
environment proof
not so great battery power (310 CIPA)
doesn't have phase detect AF
47
built in image stabilization (Sensor based)
nice sensor size (APS-C)
has phase detect auto focus
does not have liveview
max fps very slow (3.0 frames/s)
sensor resolution low (6MP)
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Travel Comparison

Olympus E-M5 II Travel photography information
Pentax K100D S Travel photography information
74
environment proof
has focus by touch
MP count good (16MP)
display is selfie friendly
not so great battery power (310 per charge)
45
built-in flash
doesn't have Timelapse recording
sensor resolution low (6MP)
doesn't offer selfie friendly display
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Landscape Comparison

Landscape photography with Olympus E-M5 II
Landscape photography with Pentax K100D S
74
focusing manually
switch lenses (Micro Four Thirds mount)
screen is a good size (3 inches)
built in image stabilization (Sensor based 5-axis)
MP count good (16MP)
good sensor size (Four Thirds)
above average ISO range (25,600)
exports RAW files
environment proof
not so great battery power (310 shots)
52
focusing manually
interchangeable lenses (Pentax KAF2 mount)
built in image stabilization (Sensor based)
nice sensor size (APS-C)
saves RAW formats
tiny screen (2.5 inch)
does not have liveview
sensor resolution low (6 megapixels)
doesn't have Timelapse recording
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Vlogging Comparison

Olympus E-M5 II Vlogging info
Pentax K100D S Vlogging info
82
display is selfie friendly
touchscreen capability
built in image stabilization (Sensor based 5-axis)
has face detection focusing
video resolution high (1920 x 1080 pxls)
has external mic socket
9
lack of video recording
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Olympus E-M5 II vs Pentax K100D S Specifications

Detailed spec comparison table for Olympus E-M5 II and Pentax K100D S
 Olympus OM-D E-M5 IIPentax K100D Super
General Information
Make Olympus Pentax
Model type Olympus OM-D E-M5 II Pentax K100D Super
Category Advanced Mirrorless Entry-Level DSLR
Released 2015-02-06 2007-06-28
Physical type SLR-style mirrorless Compact SLR
Sensor Information
Chip TruePic VII -
Sensor type MOS CCD
Sensor size Four Thirds APS-C
Sensor measurements 17.3 x 13mm 23.5 x 15.7mm
Sensor surface area 224.9mm² 369.0mm²
Sensor resolution 16 megapixel 6 megapixel
Anti alias filter
Aspect ratio 1:1, 4:3, 3:2 and 16:9 3:2
Maximum resolution 4608 x 3456 3008 x 2008
Maximum native ISO 25600 3200
Lowest native ISO 200 200
RAW data
Lowest boosted ISO 100 -
Autofocusing
Focus manually
AF touch
AF continuous
AF single
Tracking AF
AF selectice
Center weighted AF
Multi area AF
Live view AF
Face detect focusing
Contract detect focusing
Phase detect focusing
Total focus points 81 11
Lens
Lens support Micro Four Thirds Pentax KAF2
Amount of lenses 107 151
Crop factor 2.1 1.5
Screen
Display type Fully Articulated Fixed Type
Display sizing 3" 2.5"
Display resolution 1,037 thousand dots 210 thousand dots
Selfie friendly
Liveview
Touch functionality
Viewfinder Information
Viewfinder type Electronic Optical (pentamirror)
Viewfinder resolution 2,360 thousand dots -
Viewfinder coverage 100% 96%
Viewfinder magnification 0.74x 0.57x
Features
Slowest shutter speed 60 secs 30 secs
Maximum shutter speed 1/8000 secs 1/4000 secs
Maximum quiet shutter speed 1/16000 secs -
Continuous shooting rate 10.0fps 3.0fps
Shutter priority
Aperture priority
Expose Manually
Exposure compensation Yes Yes
Set WB
Image stabilization
Integrated flash
Flash distance no built-in flash -
Flash settings Auto, redeye, fill, off, redeye slow sync, slow sync, 2nd-curtain slow sync, manual Auto, On, Off, Red-eye reduction
Hot shoe
Auto exposure bracketing
WB bracketing
Maximum flash synchronize 1/250 secs 1/180 secs
Exposure
Multisegment
Average
Spot
Partial
AF area
Center weighted
Video features
Video resolutions 1920 x 1080 (60p, 50p, 30p, 25p, 24p), 1280 x 720 (60p, 50p, 30p, 25p, 24p), 640 x 480 (30p) -
Maximum video resolution 1920x1080 None
Video format MPEG-4, H.264, Motion JPEG -
Microphone 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 None None
Physical
Environment sealing
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 469 gr (1.03 lb) 646 gr (1.42 lb)
Physical dimensions 124 x 85 x 45mm (4.9" x 3.3" x 1.8") 129 x 91 x 71mm (5.1" x 3.6" x 2.8")
DXO scores
DXO All around rating 73 not tested
DXO Color Depth rating 23.0 not tested
DXO Dynamic range rating 12.4 not tested
DXO Low light rating 896 not tested
Other
Battery life 310 images -
Battery style Battery Pack -
Battery ID BLN-1 4 x AA
Self timer Yes (2 or 10 secs, custom) Yes (2 or 12 sec)
Time lapse recording
Type of storage SD/SDHC/SDXC SD/SDHC card
Card slots One One
Price at launch $699 $520