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Olympus E-M10 III vs Pentax K-3 II

Portability
80
Imaging
55
Features
75
Overall
63
Olympus OM-D E-M10 Mark III front
 
Pentax K-3 II front
Portability
59
Imaging
67
Features
84
Overall
73

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

Olympus E-M10 III
(Full Review)
  • 16MP - Four Thirds Sensor
  • 3" Tilting Screen
  • ISO 200 - 25600
  • Sensor based 5-axis Image Stabilization
  • 3840 x 2160 video
  • Micro Four Thirds Mount
  • 410g - 122 x 84 x 50mm
  • Released August 2017
  • Earlier Model is Olympus E-M10 II
  • Refreshed by Olympus E-M10 IV
Pentax K-3 II
(Full Review)
  • 24MP - APS-C Sensor
  • 3.2" Fixed Screen
  • ISO 100 - 51200
  • Sensor based Image Stabilization
  • No Anti-Alias Filter
  • 1/8000s Max Shutter
  • 1920 x 1080 video
  • Pentax KAF2 Mount
  • 800g - 131 x 100 x 77mm
  • Revealed April 2015
  • Earlier Model is Pentax K-3
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Olympus E-M10 III vs Pentax K-3 II Overview

Below is a thorough analysis of the Olympus E-M10 III and Pentax K-3 II, one being a Entry-Level Mirrorless and the latter is a Advanced DSLR by manufacturers Olympus and Pentax. There exists a sizeable gap among the resolutions of the E-M10 III (16MP) and K-3 II (24MP) and the E-M10 III (Four Thirds) and K-3 II (APS-C) enjoy totally different sensor sizing.

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The E-M10 III was released 2 years later than the K-3 II and that is a fairly large gap as far as camera technology is concerned. The two cameras come with different body type with the Olympus E-M10 III being a SLR-style mirrorless camera and the Pentax K-3 II being a Mid-size SLR camera.

Before delving straight into a complete comparison, below is a concise highlight of how the E-M10 III scores vs the K-3 II with respect to portability, imaging, features and an overall grade.

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

 E-M10 III K-3 II 
RevealedAugust 2017April 2015More recent by 29 months
Screen typeTiltingFixed Tilting screen
Screen resolution1040k1037kCrisper screen (+3k dot)
Touch friendly screen Quickly navigate

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

 K-3 II E-M10 III 
Screen dimension3.2"3"Bigger screen (+0.2")

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

 E-M10 III K-3 II 
Manual focus Dial precise focusing
Selfie screen Lack of selfie screen

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

For anyone who is aiming to lug around your camera, you are going to need to factor its weight and volume. The Olympus E-M10 III offers external measurements of 122mm x 84mm x 50mm (4.8" x 3.3" x 2.0") accompanied by a weight of 410 grams (0.90 lbs) and the Pentax K-3 II has sizing of 131mm x 100mm x 77mm (5.2" x 3.9" x 3.0") accompanied by a weight of 800 grams (1.76 lbs).

Take a look at the Olympus E-M10 III and Pentax K-3 II in the new Camera and Lens Size Comparison Tool. Camera Size Comparison with Lenses

Bear in mind, the weight of an Interchangeable Lens Camera will change dependant on the lens you have attached during that time. The following is the front view measurements comparison of the E-M10 III and the K-3 II.

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

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

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

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

Normally, it can be difficult to envision the difference in sensor measurements purely by checking out specs. The graphic below will provide you a greater sense of the sensor measurements in the E-M10 III and K-3 II.

All in all, each of the cameras have got different megapixels and different sensor measurements. The E-M10 III because of its smaller sensor will make achieving bokeh more challenging and the Pentax K-3 II will produce greater detail as a result of its extra 8MP. Higher resolution will let you crop shots much more aggressively. The fresher E-M10 III is going to have an edge with regard to sensor innovation.

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

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

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

Portrait Comparison

Olympus E-M10 III Portrait photography factors
Pentax K-3 II Portrait photography factors
73
focusing manually
good resolution (16MP)
nice sensor size (Four Thirds)
has face detection focus
supports RAW formats
80
focusing manually
sensor resolution is decent (24MP)
good sensor size (APS-C)
offers face detection focus
delivers RAW formats
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Street Comparison

Olympus E-M10 III as a Street photography camera
Pentax K-3 II as a Street photography camera
77
has a tilting screen
image stabilization (Sensor based 5-axis)
nice sensor size (Four Thirds)
supports RAW formats
provides touch focus
good high ISO (25,600)
more heavy than average (410g)
69
built in image stabilization (Sensor based)
good sensor size (APS-C)
delivers RAW formats
weather proof
very good high ISO (51,200)
screen does not articulate
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Sports Comparison

Olympus E-M10 III Sports photography details
Pentax K-3 II Sports photography details
69
quiet mode (1/16,000s)
image stabilization (Sensor based 5-axis)
good resolution (16 megapixels)
nice sensor size (Four Thirds)
has tracking autofocus
lack of phase detect auto focus
77
high shutter speed (1/8,000s)
built in image stabilization (Sensor based)
sensor resolution is decent (24MP)
good sensor size (APS-C)
offers tracking autofocus
weather proof
sensor has phase detect auto focus
terrible battery life (720 per charge)
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Travel Comparison

Olympus E-M10 III Travel photography factors
Pentax K-3 II Travel photography factors
67
provides touch focus
good resolution (16 megapixels)
built-in flash
more heavy than average (410 grams)
does not feature selfie friendly display
57
weather proof
sensor resolution is decent (24 megapixels)
terrible battery life (720 per charge)
does not contain selfie friendly screen
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Landscape Comparison

Olympus E-M10 III Landscape photography information
Pentax K-3 II Landscape photography information
80
focusing manually
switch lenses (Micro Four Thirds mount)
screen is a good size (3 inch)
image stabilization (Sensor based 5-axis)
good resolution (16MP)
nice sensor size (Four Thirds)
good high ISO (25,600)
supports RAW formats
78
focusing manually
change lenses (Pentax KAF2 mount)
decent sized screen (3.2")
built in image stabilization (Sensor based)
sensor resolution is decent (24 megapixels)
good sensor size (APS-C)
does not have anti aliasing filter
very good high ISO (51,200)
delivers RAW formats
weather proof
has double storage slots
terrible battery life (720 shots)
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Vlogging Comparison

Olympus E-M10 III Vlogging features
Pentax K-3 II Vlogging features
32
touchscreen enabled
image stabilization (Sensor based 5-axis)
has face detection focus
high res video (3840 x 2160 pixels)
does not feature selfie friendly display
does not have external microphone jack
more heavy than average (410g)
34
built in image stabilization (Sensor based)
offers face detection focus
high quality video (1920 x 1080 pixels)
includes external microphone port
does not contain selfie friendly screen
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Olympus E-M10 III vs Pentax K-3 II Specifications

Detailed spec comparison table for Olympus E-M10 III and Pentax K-3 II
 Olympus OM-D E-M10 Mark IIIPentax K-3 II
General Information
Brand Olympus Pentax
Model type Olympus OM-D E-M10 Mark III Pentax K-3 II
Category Entry-Level Mirrorless Advanced DSLR
Released 2017-08-31 2015-04-23
Body design SLR-style mirrorless Mid-size SLR
Sensor Information
Chip TruePic VIII Prime III
Sensor type CMOS CMOS
Sensor size Four Thirds APS-C
Sensor measurements 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
Max resolution 4608 x 3456 6016 x 4000
Max native ISO 25600 51200
Minimum native ISO 200 100
RAW data
Minimum enhanced ISO 100 -
Autofocusing
Manual focusing
Touch focus
AF continuous
AF single
Tracking AF
AF selectice
Center weighted AF
Multi area AF
Live view AF
Face detection focusing
Contract detection focusing
Phase detection focusing
Total focus points 121 27
Cross type focus points - 25
Lens
Lens mount type Micro Four Thirds Pentax KAF2
Amount of lenses 107 151
Crop factor 2.1 1.5
Screen
Range of screen Tilting Fixed Type
Screen diagonal 3 inch 3.2 inch
Screen resolution 1,040k dot 1,037k dot
Selfie friendly
Liveview
Touch capability
Viewfinder Information
Viewfinder Electronic Optical (pentaprism)
Viewfinder resolution 2,360k dot -
Viewfinder coverage 100 percent 100 percent
Viewfinder magnification 0.62x 0.64x
Features
Minimum shutter speed 60 secs 30 secs
Fastest shutter speed 1/4000 secs 1/8000 secs
Fastest silent shutter speed 1/16000 secs -
Continuous shutter speed 8.6 frames per sec 8.3 frames per sec
Shutter priority
Aperture priority
Expose Manually
Exposure compensation Yes Yes
Change WB
Image stabilization
Integrated flash
Flash distance 5.80 m (at ISO 100) no built-in flash
Flash options Auto, redeye, slow sync, 2nd-curtain slow sync, redeye slow sync, fill-in, manual, off 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)
Hot shoe
Auto exposure bracketing
WB bracketing
Fastest 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
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)
Max video resolution 3840x2160 1920x1080
Video data format MPEG-4, H.264 MPEG-4, H.264
Microphone jack
Headphone jack
Connectivity
Wireless Built-In Optional
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 3.0 (5 GBit/sec)
GPS None BuiltIn
Physical
Environment seal
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 410 gr (0.90 lb) 800 gr (1.76 lb)
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 23.6
DXO Dynamic range rating not tested 13.6
DXO Low light rating not tested 1106
Other
Battery life 330 images 720 images
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 feature
Storage media SD/SDHC/SDXC (UHS-I/II supported) Dual SD/SDHC/SDXC
Storage slots One 2
Price at release $650 $829