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Olympus E-M10 III vs Pentax K-3

Portability
80
Imaging
55
Features
75
Overall
63
Olympus OM-D E-M10 Mark III front
 
Pentax K-3 front
Portability
59
Imaging
65
Features
85
Overall
73

Olympus E-M10 III vs Pentax K-3 Key Specs

Olympus E-M10 III
(Full Review)
  • 16MP - Four Thirds Sensor
  • 3" Tilting Display
  • ISO 200 - 25600
  • Sensor based 5-axis Image Stabilization
  • 3840 x 2160 video
  • Micro Four Thirds Mount
  • 410g - 122 x 84 x 50mm
  • Launched August 2017
  • Superseded the Olympus E-M10 II
  • Renewed by Olympus E-M10 IV
Pentax K-3
(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
  • Launched April 2014
  • Successor is Pentax K-3 II
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Olympus E-M10 III vs Pentax K-3 Overview

Lets take a closer look at the Olympus E-M10 III and Pentax K-3, former is a Entry-Level Mirrorless while the other is a Advanced DSLR by companies Olympus and Pentax. There exists a sizable gap among the resolutions of the E-M10 III (16MP) and K-3 (24MP) and the E-M10 III (Four Thirds) and K-3 (APS-C) provide different sensor dimensions.

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The E-M10 III was introduced 3 years after the K-3 which is a fairly significant difference as far as camera technology is concerned. Both cameras feature different body design with the Olympus E-M10 III being a SLR-style mirrorless camera and the Pentax K-3 being a Mid-size SLR camera.

Before diving right into a step-by-step comparison, here is a quick highlight of how the E-M10 III grades vs the K-3 in relation to portability, imaging, features and an overall mark.

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Reasons to pick Olympus E-M10 III over the Pentax K-3

 E-M10 III K-3 
LaunchedAugust 2017April 2014Newer by 42 months
Display typeTiltingFixed Tilting display
Display resolution1040k1037kClearer display (+3k dot)
Touch friendly display Easily navigate

Reasons to pick Pentax K-3 over the Olympus E-M10 III

 K-3 E-M10 III 
Display size3.2"3"Larger display (+0.2")

Common features in the Olympus E-M10 III and Pentax K-3

 E-M10 III K-3 
Focus manually More accurate focus
Selfie screen Neither provides selfie screen

Olympus E-M10 III vs Pentax K-3 Physical Comparison

In case you're going to travel with your camera often, you have to factor its weight and dimensions. The Olympus E-M10 III provides physical measurements of 122mm x 84mm x 50mm (4.8" x 3.3" x 2.0") having a weight of 410 grams (0.90 lbs) whilst the Pentax K-3 has dimensions of 131mm x 100mm x 77mm (5.2" x 3.9" x 3.0") accompanied by a weight of 800 grams (1.76 lbs).

Examine the Olympus E-M10 III and Pentax K-3 in our newest Camera & Lens Size Comparison Tool. Camera Size Comparison with Lenses

Always remember, the weight of an ILC will differ based on the lens you are utilizing at that time. Underneath is a front view physical size comparison of the E-M10 III versus the K-3.

Olympus E-M10 III vs Pentax K-3 size comparison

Taking into consideration dimensions and weight, the portability rating of the E-M10 III and K-3 is 80 and 59 respectively.

Olympus E-M10 III vs Pentax K-3 top view buttons comparison

Olympus E-M10 III vs Pentax K-3 Sensor Comparison

More often than not, it can be tough to imagine the difference in sensor dimensions only by checking out specs. The pic here will provide you a stronger sense of the sensor sizing in the E-M10 III and K-3.

As you can plainly see, both the cameras come with different megapixel count and different sensor dimensions. The E-M10 III with its smaller sensor is going to make achieving shallower DOF tougher and the Pentax K-3 will show extra detail using its extra 8 Megapixels. Greater resolution will also allow you to crop photos a good deal more aggressively. The more recent E-M10 III provides an advantage with regard to sensor tech.

Olympus E-M10 III vs Pentax K-3 sensor size comparison

Olympus E-M10 III vs Pentax K-3 Screen and ViewFinder

Olympus E-M10 III vs Pentax K-3 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Olympus E-M10 III Portrait photography info
Pentax K-3 Portrait photography info
73
you can focus manually
decent MP (16 megapixels)
nice sensor size (Four Thirds)
supports face detection autofocus
exports RAW files
79
focusing manually
good megapixels (24 megapixels)
sensor size is decent (APS-C)
includes face detection autofocus
supports RAW formats
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Street Comparison

Olympus E-M10 III Street photography factors
Pentax K-3 Street photography factors
77
screen tilts
has image stabilization (Sensor based 5-axis)
nice sensor size (Four Thirds)
exports RAW files
features focus via touch
above average high ISO (25,600)
heavier than competition (410g)
69
has image stabilization (Sensor based)
sensor size is decent (APS-C)
supports RAW formats
environment proof
great ISO range (51,200)
screen is fixed
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Sports Comparison

Sports photography with Olympus E-M10 III
Sports photography with Pentax K-3
69
silent shooting (1/16,000 seconds)
has image stabilization (Sensor based 5-axis)
decent MP (16 megapixels)
nice sensor size (Four Thirds)
supports tracking autofocus
lack of phase detect autofocus
76
maximum shutter speed is high (1/8,000 seconds)
has image stabilization (Sensor based)
good megapixels (24 megapixels)
sensor size is decent (APS-C)
includes tracking autofocus
environment proof
has phase detect autofocus
not so great battery pack (560 CIPA)
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Travel Comparison

Olympus E-M10 III Travel photography highlights
Pentax K-3 Travel photography highlights
67
features focus via touch
decent MP (16 megapixels)
flash built-in
heavier than competition (410g)
doesn't posses selfie friendly screen
60
environment proof
good megapixels (24 megapixels)
has built in flash
not so great battery pack (560 CIPA)
does not posses selfie friendly display
Photography Glossary

Landscape Comparison

Olympus E-M10 III Landscape photography highlights
Pentax K-3 Landscape photography highlights
80
you can focus manually
swap lenses (Micro Four Thirds mount)
screen size is decent (3")
has image stabilization (Sensor based 5-axis)
decent MP (16MP)
nice sensor size (Four Thirds)
above average high ISO (25,600)
exports RAW files
77
focusing manually
interchangeable lenses (Pentax KAF2 mount)
good sized screen (3.2 inch)
has image stabilization (Sensor based)
good megapixels (24 megapixels)
sensor size is decent (APS-C)
no anti-alias filter
great ISO range (51,200)
supports RAW formats
environment proof
2 card slots
not so great battery pack (560 shots)
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Vlogging Comparison

Olympus E-M10 III Vlogging information
Pentax K-3 Vlogging information
32
touchscreen functionality
has image stabilization (Sensor based 5-axis)
supports face detection autofocus
video res high (3840 x 2160 pxls)
doesn't posses selfie friendly screen
missing external mic socket
heavier than competition (410g)
34
has image stabilization (Sensor based)
includes face detection autofocus
video res high (1920 x 1080 pixels)
has external mic support
does not posses selfie friendly display
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Olympus E-M10 III vs Pentax K-3 Specifications

Detailed spec comparison table for Olympus E-M10 III and Pentax K-3
 Olympus OM-D E-M10 Mark IIIPentax K-3
General Information
Manufacturer Olympus Pentax
Model type Olympus OM-D E-M10 Mark III Pentax K-3
Type Entry-Level Mirrorless Advanced DSLR
Launched 2017-08-31 2014-04-10
Physical type SLR-style mirrorless Mid-size SLR
Sensor Information
Powered by TruePic VIII Prime III
Sensor type CMOS CMOS
Sensor size Four Thirds APS-C
Sensor dimensions 17.4 x 13mm 23.5 x 15.6mm
Sensor surface area 226.2mm² 366.6mm²
Sensor resolution 16 megapixel 24 megapixel
Anti alias filter
Aspect ratio 4:3 3:2
Peak resolution 4608 x 3456 6016 x 4000
Highest native ISO 25600 51200
Minimum native ISO 200 100
RAW pictures
Minimum enhanced ISO 100 -
Autofocusing
Manual focusing
Touch to focus
Continuous AF
AF single
AF tracking
AF selectice
AF center weighted
AF multi area
Live view AF
Face detect AF
Contract detect AF
Phase detect AF
Total focus points 121 27
Cross type focus points - 25
Lens
Lens support Micro Four Thirds Pentax KAF2
Number of lenses 107 151
Focal length multiplier 2.1 1.5
Screen
Type of display Tilting Fixed Type
Display size 3 inches 3.2 inches
Resolution of display 1,040k dots 1,037k dots
Selfie friendly
Liveview
Touch operation
Display technology - TFT LCD monitor
Viewfinder Information
Viewfinder type Electronic Optical (pentaprism)
Viewfinder resolution 2,360k dots -
Viewfinder coverage 100 percent 100 percent
Viewfinder magnification 0.62x 0.64x
Features
Min shutter speed 60 seconds 30 seconds
Max shutter speed 1/4000 seconds 1/8000 seconds
Max quiet shutter speed 1/16000 seconds -
Continuous shutter rate 8.6fps 8.0fps
Shutter priority
Aperture priority
Expose Manually
Exposure compensation Yes Yes
Set WB
Image stabilization
Inbuilt flash
Flash distance 5.80 m (at ISO 100) 13.00 m (at ISO 100)
Flash modes Auto, redeye, slow sync, 2nd-curtain slow sync, redeye slow sync, fill-in, manual, off Auto, on, off, red-eye, slow sync, slow sync + red-eye, trailing curtain sync, high speed, wireless, manual
External flash
AE bracketing
White balance bracketing
Max flash synchronize 1/250 seconds 1/180 seconds
Exposure
Multisegment metering
Average metering
Spot metering
Partial metering
AF area metering
Center weighted metering
Video features
Supported video resolutions 3840 x 2160 @ 30p / 102 Mbps, MOV, H.264, Linear PCM 1920 x 1080 (60i, 50i, 30p, 25p, 24p), 1280 x 720 (60p, 50p, 30p, 25p, 24p)
Highest video resolution 3840x2160 1920x1080
Video data format MPEG-4, H.264 MPEG-4, H.264
Mic support
Headphone support
Connectivity
Wireless Built-In None
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 3.0 (5 GBit/sec)
GPS None Optional
Physical
Environmental sealing
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 410 grams (0.90 lbs) 800 grams (1.76 lbs)
Physical dimensions 122 x 84 x 50mm (4.8" x 3.3" x 2.0") 131 x 100 x 77mm (5.2" x 3.9" x 3.0")
DXO scores
DXO Overall rating not tested 80
DXO Color Depth rating not tested 23.7
DXO Dynamic range rating not tested 13.4
DXO Low light rating not tested 1216
Other
Battery life 330 shots 560 shots
Form of battery Battery Pack Battery Pack
Battery ID BLS-50 D-LI90
Self timer Yes (2 or 12 secs, custom) Yes ( 2 or 12 seconds)
Time lapse shooting
Storage type SD/SDHC/SDXC (UHS-I/II supported) Dual SD/SDHC/SDXC
Card slots One Dual
Price at release $650 $639