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Olympus E-M1 II vs Pentax K100D S

Portability
68
Imaging
59
Features
93
Overall
72
Olympus OM-D E-M1 Mark II front
 
Pentax K100D Super front
Portability
65
Imaging
45
Features
38
Overall
42

Olympus E-M1 II vs Pentax K100D S Key Specs

Olympus E-M1 II
(Full Review)
  • 20MP - Four Thirds Sensor
  • 3" Fully Articulated Display
  • ISO 200 - 25600
  • Sensor based 5-axis Image Stabilization
  • No Anti-Alias Filter
  • 1/8000s Maximum Shutter
  • 4096 x 2160 video
  • Micro Four Thirds Mount
  • 574g - 134 x 91 x 67mm
  • Announced September 2016
  • Superseded the Olympus E-M1
  • Updated by Olympus E-M1 III
Pentax K100D S
(Full Review)
  • 6MP - APS-C Sensor
  • 2.5" Fixed Display
  • ISO 200 - 3200
  • Sensor based Image Stabilization
  • No Video
  • Pentax KAF2 Mount
  • 646g - 129 x 91 x 71mm
  • Introduced June 2007
  • Old Model is Pentax K100D
  • Successor is Pentax K200D
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Olympus E-M1 II vs Pentax K100D S Overview

Lets take a closer look at the Olympus E-M1 II vs Pentax K100D S, former is a Pro Mirrorless while the other is a Entry-Level DSLR by companies Olympus and Pentax. There is a considerable difference among the resolutions of the E-M1 II (20MP) and K100D S (6MP) and the E-M1 II (Four Thirds) and K100D S (APS-C) have different sensor size.

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The E-M1 II was manufactured 9 years after the K100D S which is a fairly large difference as far as camera tech is concerned. Each of these cameras feature different body design with the Olympus E-M1 II being a SLR-style mirrorless camera and the Pentax K100D S being a Compact SLR camera.

Before getting straight to a in-depth comparison, here is a short introduction of how the E-M1 II grades vs the K100D S in the way of portability, imaging, features and an overall score.

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Reasons to pick Olympus E-M1 II over the Pentax K100D S

 E-M1 II K100D S 
IntroducedSeptember 2016June 2007More modern by 113 months
Display typeFully ArticulatedFixed Fully Articulating display
Display size3"2.5"Larger display (+0.5")
Display resolution1037k210kCrisper display (+827k dot)
Selfie screen Take selfies
Touch display Easily navigate

Reasons to pick Pentax K100D S over the Olympus E-M1 II

 K100D S E-M1 II 

Common features in the Olympus E-M1 II and Pentax K100D S

 E-M1 II K100D S 
Manually focus Very accurate focusing

Olympus E-M1 II vs Pentax K100D S Physical Comparison

For anybody who is planning to carry around your camera often, you are going to need to think about its weight and size. The Olympus E-M1 II features external dimensions of 134mm x 91mm x 67mm (5.3" x 3.6" x 2.6") along with a weight of 574 grams (1.27 lbs) and the Pentax K100D S has specifications of 129mm x 91mm x 71mm (5.1" x 3.6" x 2.8") and a weight of 646 grams (1.42 lbs).

Check out the Olympus E-M1 II vs Pentax K100D S in our completely new Camera & Lens Size Comparison Tool. Camera Size Comparison with Lenses

Don't forget, the weight of an ILC will vary depending on the lens you have at that moment. Below is a front view measurements comparison of the E-M1 II and the K100D S.

Olympus E-M1 II vs Pentax K100D S size comparison

Taking into consideration size and weight, the portability score of the E-M1 II and K100D S is 68 and 65 respectively.

Olympus E-M1 II vs Pentax K100D S top view buttons comparison

Olympus E-M1 II vs Pentax K100D S Sensor Comparison

In many cases, it can be difficult to visualize the difference in sensor sizes merely by looking through specifications. The pic here should provide you a clearer sense of the sensor sizes in the E-M1 II and K100D S.

To sum up, both of the cameras come with different resolutions and different sensor sizes. The E-M1 II featuring a smaller sensor is going to make getting shallow depth of field trickier and the Olympus E-M1 II will provide you with more detail due to its extra 14 Megapixels. Greater resolution will also let you crop photos a good deal more aggressively. The newer E-M1 II provides a benefit with regard to sensor innovation.

Olympus E-M1 II vs Pentax K100D S sensor size comparison

Olympus E-M1 II vs Pentax K100D S Screen and ViewFinder

Olympus E-M1 II vs Pentax K100D S Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Olympus E-M1 II as a Portrait photography camera
Pentax K100D S as a Portrait photography camera
75
has manual focus
megapixel count good (20 megapixels)
sensor size is decent (Four Thirds)
supports face detection focusing
delivers RAW files
51
has manual focus
sensor size is nice (APS-C)
saves RAW files
no liveview
low resolution (6MP)
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Street Comparison

Olympus E-M1 II Street photography details
Pentax K100D S Street photography details
78
screen can move to multiple angles
image stabilization (Sensor based 5-axis)
sensor size is decent (Four Thirds)
delivers RAW files
boasts focus by touch
weather proof
lighter than average (574 grams)
very good high ISO (25,600)
64
image stabilization (Sensor based)
sensor size is nice (APS-C)
saves RAW files
no articulating screen
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Sports Comparison

Sports photography with Olympus E-M1 II
Sports photography with Pentax K100D S
74
great max shutter speed (1/8,000s)
quiet shutter (1/32,000s)
max frames per second high (60.0 frames per second)
image stabilization (Sensor based 5-axis)
megapixel count good (20MP)
sensor size is decent (Four Thirds)
supports tracking autofocus
weather proof
sensor has phase detect AF
bad battery life (350 shots)
47
image stabilization (Sensor based)
sensor size is nice (APS-C)
has phase detect AF
no liveview
painfully slow continuous shooting (3.0 fps)
low resolution (6 megapixels)
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Travel Comparison

Olympus E-M1 II Travel photography advice
Pentax K100D S Travel photography advice
72
lighter than average (574 grams)
weather proof
boasts focus by touch
megapixel count good (20MP)
screen is selfie friendly
bad battery life (350 per charge)
45
has built in flash
missing Time Lapse function
low resolution (6 megapixels)
doesn't contain selfie friendly display
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Landscape Comparison

Olympus E-M1 II Landscape photography factors
Pentax K100D S Landscape photography factors
76
has manual focus
switch lenses (Micro Four Thirds mount)
nice screen size (3 inches)
image stabilization (Sensor based 5-axis)
megapixel count good (20MP)
sensor size is decent (Four Thirds)
no low pass filter
very good high ISO (25,600)
delivers RAW files
weather proof
has double storage slots
bad battery life (350 CIPA)
52
has manual focus
interchangeable lenses (Pentax KAF2 mount)
image stabilization (Sensor based)
sensor size is nice (APS-C)
saves RAW files
screen is somewhat small (2.5")
no liveview
low resolution (6 megapixels)
missing Time Lapse function
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Vlogging Comparison

Olympus E-M1 II Vlogging highlights
Pentax K100D S Vlogging highlights
79
screen is selfie friendly
built-in touchscreen
image stabilization (Sensor based 5-axis)
supports face detection focusing
high res video (4096 x 2160 resolution)
includes external mic port
lighter than average (574 grams)
9
can't record video
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Olympus E-M1 II vs Pentax K100D S Specifications

Detailed spec comparison table for Olympus E-M1 II and Pentax K100D S
 Olympus OM-D E-M1 Mark IIPentax K100D Super
General Information
Company Olympus Pentax
Model Olympus OM-D E-M1 Mark II Pentax K100D Super
Category Pro Mirrorless Entry-Level DSLR
Announced 2016-09-19 2007-06-28
Body design SLR-style mirrorless Compact SLR
Sensor Information
Processor Chip TruePic VIII -
Sensor type CMOS CCD
Sensor size Four Thirds APS-C
Sensor dimensions 17.4 x 13mm 23.5 x 15.7mm
Sensor area 226.2mm² 369.0mm²
Sensor resolution 20 megapixels 6 megapixels
Anti aliasing filter
Aspect ratio 4:3 3:2
Highest resolution 5184 x 3888 3008 x 2008
Highest native ISO 25600 3200
Minimum native ISO 200 200
RAW files
Minimum boosted ISO 64 -
Autofocusing
Manual focus
Touch focus
Continuous AF
Single AF
Tracking AF
Selective AF
AF center weighted
AF multi area
AF live view
Face detect focusing
Contract detect focusing
Phase detect focusing
Number of focus points 121 11
Lens
Lens mounting type Micro Four Thirds Pentax KAF2
Total lenses 107 151
Crop factor 2.1 1.5
Screen
Display type Fully Articulated Fixed Type
Display sizing 3 inch 2.5 inch
Resolution of display 1,037 thousand dot 210 thousand dot
Selfie friendly
Liveview
Touch operation
Viewfinder Information
Viewfinder Electronic Optical (pentamirror)
Viewfinder resolution 2,360 thousand dot -
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 1/32000 secs -
Continuous shooting speed 60.0 frames per second 3.0 frames per second
Shutter priority
Aperture priority
Manual exposure
Exposure compensation Yes Yes
Custom WB
Image stabilization
Inbuilt flash
Flash range 9.10 m (at ISO 100) -
Flash options Redeye, Fill-in, Flash Off, Red-eye Slow sync.(1st curtain), Slow sync.(1st curtain), Slow sync.(2nd curtain), Manual Auto, On, Off, Red-eye reduction
External flash
AE bracketing
White balance bracketing
Maximum flash sync 1/250 secs 1/180 secs
Exposure
Multisegment exposure
Average exposure
Spot exposure
Partial exposure
AF area exposure
Center weighted exposure
Video features
Supported video resolutions 4096 x 2160 @ 24p / 237 Mbps, MOV, H.264, Linear PCM, 3840 x 2160 @ 30p / 102 Mbps, MOV, H.264, Linear PCM -
Highest video resolution 4096x2160 None
Video format MOV, H.264 -
Mic jack
Headphone jack
Connectivity
Wireless Built-In None
Bluetooth
NFC
HDMI
USB USB 3.0 (5 GBit/sec) USB 2.0 (480 Mbit/sec)
GPS None None
Physical
Environment seal
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 574g (1.27 lbs) 646g (1.42 lbs)
Physical dimensions 134 x 91 x 67mm (5.3" x 3.6" x 2.6") 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 23.7 not tested
DXO Dynamic range score 12.8 not tested
DXO Low light score 1312 not tested
Other
Battery life 350 shots -
Style of battery Battery Pack -
Battery model BLH-1 4 x AA
Self timer Yes (2 or 12 secs, custom) Yes (2 or 12 sec)
Time lapse feature
Storage media Dual SD/SDHC/SDXC slots SD/SDHC card
Storage slots 2 One
Retail price $1,700 $520