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Olympus E-M5 II vs Pentax K-3

Portability
80
Imaging
53
Features
84
Overall
65
Olympus OM-D E-M5 II front
 
Pentax K-3 front
Portability
59
Imaging
65
Features
85
Overall
73

Olympus E-M5 II vs Pentax K-3 Key Specs

Olympus E-M5 II
(Full Review)
  • 16MP - Four Thirds Sensor
  • 3" Fully Articulated Screen
  • 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
  • Launched February 2015
  • Replaced the Olympus E-M5
  • Renewed by Olympus E-M5 III
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
  • Revealed April 2014
  • Newer Model is Pentax K-3 II
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Olympus E-M5 II vs Pentax K-3 Overview

Its time to look a little more in depth at the Olympus E-M5 II and Pentax K-3, former is a Advanced Mirrorless while the other is a Advanced DSLR by competitors Olympus and Pentax. There is a noticeable difference among the sensor resolutions of the E-M5 II (16MP) and K-3 (24MP) and the E-M5 II (Four Thirds) and K-3 (APS-C) posses different sensor sizing.

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The E-M5 II was revealed 11 months after the K-3 which means that they are of a similar age. The two cameras have different body design with the Olympus E-M5 II being a SLR-style mirrorless camera and the Pentax K-3 being a Mid-size SLR camera.

Before going straight to a complete comparison, here is a simple view of how the E-M5 II scores versus the K-3 in the way of portability, imaging, features and an overall mark.

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Reasons to pick Olympus E-M5 II over the Pentax K-3

 E-M5 II K-3 
RevealedFebruary 2015April 2014Newer by 11 months
Display typeFully ArticulatedFixed Fully Articulating display
Selfie screen Take selfies
Touch display Easily navigate

Reasons to pick Pentax K-3 over the Olympus E-M5 II

 K-3 E-M5 II 
Display dimensions3.2"3"Larger display (+0.2")

Common features in the Olympus E-M5 II and Pentax K-3

 E-M5 II K-3 
Focus manually Dial exact focus
Display resolution1037k1037kThe same display resolution

Olympus E-M5 II vs Pentax K-3 Physical Comparison

In case you're aiming to travel with your camera, you'll need to consider its weight and measurements. The Olympus E-M5 II provides outside dimensions of 124mm x 85mm x 45mm (4.9" x 3.3" x 1.8") accompanied by a weight of 469 grams (1.03 lbs) whilst the Pentax K-3 has proportions 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-M5 II and Pentax K-3 in our newest Camera plus Lens Size Comparison Tool. Camera Size Comparison with Lenses

Take into account, the weight of an ILC will change dependant on the lens you select at that moment. The following is a front view measurements comparison of the E-M5 II against the K-3.

Olympus E-M5 II vs Pentax K-3 size comparison

Considering size and weight, the portability grade of the E-M5 II and K-3 is 80 and 59 respectively.

Olympus E-M5 II vs Pentax K-3 top view buttons comparison

Olympus E-M5 II vs Pentax K-3 Sensor Comparison

Oftentimes, its tough to imagine the difference in sensor dimensions just by going through technical specs. The picture here should provide you a clearer sense of the sensor dimensions in the E-M5 II and K-3.

As you can tell, the 2 cameras provide different megapixel count and different sensor dimensions. The E-M5 II using its smaller sensor is going to make getting shallower DOF more difficult and the Pentax K-3 will produce extra detail because of its extra 8MP. Greater resolution will also let you crop images more aggressively. The more recent E-M5 II should have a benefit in sensor innovation.

Olympus E-M5 II vs Pentax K-3 sensor size comparison

Olympus E-M5 II vs Pentax K-3 Screen and ViewFinder

Olympus E-M5 II vs Pentax K-3 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Olympus E-M5 II Portrait photography information
Pentax K-3 Portrait photography information
71
focusing manually
decent megapixels (16MP)
good sensor size (Four Thirds)
features face detect autofocus
saves RAW files
79
focusing manually
decent megapixels (24 megapixels)
nice sensor size (APS-C)
supports face detection autofocus
exports RAW files
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Street Comparison

Olympus E-M5 II as a Street photography camera
Pentax K-3 as a Street photography camera
82
fully articulated screen
built in image stabilization (Sensor based 5-axis)
good sensor size (Four Thirds)
saves RAW files
comes with touch to focus
weather sealing
good high ISO (25,600)
69
image stabilization (Sensor based)
nice sensor size (APS-C)
exports RAW files
environment sealing
very good ISO range (51,200)
fixed screen
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Sports Comparison

Olympus E-M5 II Sports photography details
Pentax K-3 Sports photography details
65
maximum shutter speed is high (1/8,000s)
silent shooting (1/16,000s)
built in image stabilization (Sensor based 5-axis)
decent megapixels (16 megapixels)
good sensor size (Four Thirds)
features tracking focus
weather sealing
low battery (310 CIPA)
lack of phase detect autofocus
76
max shutter speed is good (1/8,000 seconds)
image stabilization (Sensor based)
decent megapixels (24MP)
nice sensor size (APS-C)
supports tracking autofocus
environment sealing
comes with phase detect autofocus
terrible battery power (560 shots)
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Travel Comparison

Travel photography with Olympus E-M5 II
Travel photography with Pentax K-3
74
weather sealing
comes with touch to focus
decent megapixels (16MP)
selfie friendly screen
low battery (310 per charge)
60
environment sealing
decent megapixels (24MP)
has built in flash
terrible battery power (560 shots)
doesn't contain selfie friendly screen
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Landscape Comparison

Landscape photography with Olympus E-M5 II
Landscape photography with Pentax K-3
74
focusing manually
change lenses (Micro Four Thirds mount)
pretty good screen size (3")
built in image stabilization (Sensor based 5-axis)
decent megapixels (16MP)
good sensor size (Four Thirds)
good high ISO (25,600)
saves RAW files
weather sealing
low battery (310 per charge)
77
focusing manually
swap lenses (Pentax KAF2 mount)
pretty good screen size (3.2")
image stabilization (Sensor based)
decent megapixels (24 megapixels)
nice sensor size (APS-C)
doesnt have low pass filter
very good ISO range (51,200)
exports RAW files
environment sealing
has double storage slots
terrible battery power (560 per charge)
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Vlogging Comparison

Olympus E-M5 II as a Vlogging camera
Pentax K-3 as a Vlogging camera
82
selfie friendly screen
touchscreen
built in image stabilization (Sensor based 5-axis)
features face detect autofocus
video resolution high (1920 x 1080 pixels)
does have mic jack
34
image stabilization (Sensor based)
supports face detection autofocus
high quality video (1920 x 1080 pixels)
does have external microphone port
doesn't contain selfie friendly screen
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Olympus E-M5 II vs Pentax K-3 Specifications

Detailed spec comparison table for Olympus E-M5 II and Pentax K-3
 Olympus OM-D E-M5 IIPentax K-3
General Information
Make Olympus Pentax
Model Olympus OM-D E-M5 II Pentax K-3
Class Advanced Mirrorless Advanced DSLR
Launched 2015-02-06 2014-04-10
Body design SLR-style mirrorless Mid-size SLR
Sensor Information
Chip TruePic VII Prime III
Sensor type MOS CMOS
Sensor size Four Thirds APS-C
Sensor measurements 17.3 x 13mm 23.5 x 15.6mm
Sensor surface area 224.9mm² 366.6mm²
Sensor resolution 16 megapixels 24 megapixels
Anti aliasing filter
Aspect ratio 1:1, 4:3, 3:2 and 16:9 3:2
Full resolution 4608 x 3456 6016 x 4000
Max native ISO 25600 51200
Lowest native ISO 200 100
RAW format
Lowest boosted ISO 100 -
Autofocusing
Focus manually
Touch to focus
Continuous autofocus
Single autofocus
Autofocus tracking
Autofocus selectice
Autofocus center weighted
Autofocus multi area
Live view autofocus
Face detection autofocus
Contract detection autofocus
Phase detection autofocus
Number of focus points 81 27
Cross focus points - 25
Lens
Lens mount Micro Four Thirds Pentax KAF2
Amount of lenses 107 151
Focal length multiplier 2.1 1.5
Screen
Range of screen Fully Articulated Fixed Type
Screen sizing 3" 3.2"
Screen resolution 1,037k dot 1,037k dot
Selfie friendly
Liveview
Touch friendly
Screen tech - TFT LCD monitor
Viewfinder Information
Viewfinder type Electronic Optical (pentaprism)
Viewfinder resolution 2,360k dot -
Viewfinder coverage 100 percent 100 percent
Viewfinder magnification 0.74x 0.64x
Features
Lowest shutter speed 60 seconds 30 seconds
Highest shutter speed 1/8000 seconds 1/8000 seconds
Highest silent shutter speed 1/16000 seconds -
Continuous shooting speed 10.0 frames/s 8.0 frames/s
Shutter priority
Aperture priority
Manual exposure
Exposure compensation Yes Yes
Change white balance
Image stabilization
Built-in flash
Flash range no built-in flash 13.00 m (at ISO 100)
Flash modes Auto, redeye, fill, off, redeye slow sync, slow sync, 2nd-curtain slow sync, manual Auto, on, off, red-eye, slow sync, slow sync + red-eye, trailing curtain sync, high speed, wireless, manual
External flash
AEB
WB bracketing
Highest flash sync 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 1920 x 1080 (60p, 50p, 30p, 25p, 24p), 1280 x 720 (60p, 50p, 30p, 25p, 24p), 640 x 480 (30p) 1920 x 1080 (60i, 50i, 30p, 25p, 24p), 1280 x 720 (60p, 50p, 30p, 25p, 24p)
Max video resolution 1920x1080 1920x1080
Video file format MPEG-4, H.264, Motion JPEG MPEG-4, H.264
Microphone jack
Headphone jack
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 seal
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 469g (1.03 lb) 800g (1.76 lb)
Physical dimensions 124 x 85 x 45mm (4.9" x 3.3" x 1.8") 131 x 100 x 77mm (5.2" x 3.9" x 3.0")
DXO scores
DXO All around score 73 80
DXO Color Depth score 23.0 23.7
DXO Dynamic range score 12.4 13.4
DXO Low light score 896 1216
Other
Battery life 310 images 560 images
Battery form Battery Pack Battery Pack
Battery model BLN-1 D-LI90
Self timer Yes (2 or 10 secs, custom) Yes ( 2 or 12 seconds)
Time lapse shooting
Storage media SD/SDHC/SDXC Dual SD/SDHC/SDXC
Storage slots 1 Dual
Launch cost $699 $639