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Olympus E-M1X vs Pentax K-5 IIs

Portability
54
Imaging
61
Features
93
Overall
73
Olympus OM-D E-M1X front
 
Pentax K-5 IIs front
Portability
60
Imaging
58
Features
83
Overall
68

Olympus E-M1X vs Pentax K-5 IIs Key Specs

Olympus E-M1X
(Full Review)
  • 20MP - Four Thirds Sensor
  • 3" Fully Articulated Screen
  • ISO 200 - 25600
  • Sensor based 5-axis Image Stabilization
  • 1/8000s Max Shutter
  • 4096 x 2160 video
  • Micro Four Thirds Mount
  • 997g - 144 x 147 x 75mm
  • Introduced January 2019
  • Previous Model is Olympus E-M1 II
Pentax K-5 IIs
(Full Review)
  • 16MP - APS-C Sensor
  • 3" Fixed Display
  • ISO 100 - 12800 (Push to 51200)
  • Sensor based Image Stabilization
  • No Anti-Alias Filter
  • 1/8000s Max Shutter
  • 1920 x 1080 video
  • Pentax KAF2 Mount
  • 760g - 131 x 97 x 73mm
  • Introduced June 2013
  • Previous Model is Pentax K-5
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Olympus E-M1X vs Pentax K-5 IIs Overview

Its time to look closer at the Olympus E-M1X and Pentax K-5 IIs, one is a Pro Mirrorless and the other is a Advanced DSLR by brands Olympus and Pentax. There is a crucial difference between the sensor resolutions of the E-M1X (20MP) and K-5 IIs (16MP) and the E-M1X (Four Thirds) and K-5 IIs (APS-C) posses totally different sensor sizing.

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The E-M1X was launched 5 years after the K-5 IIs which is quite a serious gap as far as tech is concerned. Each of the cameras have different body design with the Olympus E-M1X being a SLR-style mirrorless camera and the Pentax K-5 IIs being a Mid-size SLR camera.

Before diving into a step-by-step comparison, here is a quick summary of how the E-M1X grades vs the K-5 IIs in regards to portability, imaging, features and an overall mark.

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Reasons to pick Olympus E-M1X over the Pentax K-5 IIs

 E-M1X K-5 IIs 
IntroducedJanuary 2019June 2013Newer by 69 months
Display typeFully ArticulatedFixed Fully Articulating display
Display resolution1037k921kCrisper display (+116k dot)
Selfie screen Take selfies
Touch friendly display Easily navigate

Reasons to pick Pentax K-5 IIs over the Olympus E-M1X

 K-5 IIs E-M1X 

Common features in the Olympus E-M1X and Pentax K-5 IIs

 E-M1X K-5 IIs 
Focus manually More precise focusing
Display dimensions3"3"Equal display measurement

Olympus E-M1X vs Pentax K-5 IIs Physical Comparison

When you are aiming to travel with your camera frequently, you have to factor its weight and size. The Olympus E-M1X offers external dimensions of 144mm x 147mm x 75mm (5.7" x 5.8" x 3.0") with a weight of 997 grams (2.20 lbs) whilst the Pentax K-5 IIs has specifications of 131mm x 97mm x 73mm (5.2" x 3.8" x 2.9") with a weight of 760 grams (1.68 lbs).

Examine the Olympus E-M1X and Pentax K-5 IIs in the all new Camera and Lens Size Comparison Tool. Camera Size Comparison with Lenses

Don't forget, the weight of an Interchangeable Lens Camera will change dependant on the lens you are working with during that time. Here is a front view size comparison of the E-M1X against the K-5 IIs.

Olympus E-M1X vs Pentax K-5 IIs size comparison

Looking at size and weight, the portability grade of the E-M1X and K-5 IIs is 54 and 60 respectively.

Olympus E-M1X vs Pentax K-5 IIs top view buttons comparison

Olympus E-M1X vs Pentax K-5 IIs Sensor Comparison

Often, its hard to visualise the difference between sensor dimensions purely by going over specs. The image here may provide you a more clear sense of the sensor sizes in the E-M1X and K-5 IIs.

All in all, both cameras provide different resolutions and different sensor dimensions. The E-M1X due to its tinier sensor will make achieving bokeh harder and the Olympus E-M1X will offer greater detail utilizing its extra 4MP. Greater resolution will help you crop images more aggressively. The newer E-M1X will have a benefit with regard to sensor tech.

Olympus E-M1X vs Pentax K-5 IIs sensor size comparison

Olympus E-M1X vs Pentax K-5 IIs Screen and ViewFinder

Olympus E-M1X vs Pentax K-5 IIs Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Olympus E-M1X Portrait photography info
Pentax K-5 IIs Portrait photography info
76
you can focus manually
good megapixels (20MP)
good sensor size (Four Thirds)
includes face detection focus
exports RAW formats
74
you can focus manually
sensor resolution is decent (16 megapixels)
decent sensor size (APS-C)
has face detection focusing
exports RAW files
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Street Comparison

Olympus E-M1X as a Street photography camera
Pentax K-5 IIs as a Street photography camera
67
screen articulates
image stabilization (Sensor based 5-axis)
good sensor size (Four Thirds)
exports RAW formats
comes with touch to focus
environment proofing
very good ISO range (25,600)
more heavy than others in class (997 grams)
67
has image stabilization (Sensor based)
decent sensor size (APS-C)
exports RAW files
environment sealing
screen does not articulate
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Sports Comparison

Sports photography with Olympus E-M1X
Sports photography with Pentax K-5 IIs
80
max shutter speed is good (1/8,000s)
quiet mode (1/32,000s)
fast continuous shooting (60.0 frames per second)
image stabilization (Sensor based 5-axis)
good megapixels (20MP)
good sensor size (Four Thirds)
includes tracking autofocus
environment proofing
better than average battery power (870 per charge)
comes with phase detect auto focus
79
high shutter speed (1/8,000 seconds)
has image stabilization (Sensor based)
sensor resolution is decent (16MP)
decent sensor size (APS-C)
has tracking autofocus
environment sealing
sensor has phase detect AF
Photography Glossary

Travel Comparison

Travel photography with Olympus E-M1X
Travel photography with Pentax K-5 IIs
68
better than average battery power (870 shots)
environment proofing
connects via bluetooth
comes with touch to focus
good megapixels (20 megapixels)
selfie friendly display
more heavy than others in class (997g)
65
environment sealing
sensor resolution is decent (16MP)
built-in flash
doesn't have a selfie friendly screen
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Landscape Comparison

Olympus E-M1X Landscape photography highlights
Pentax K-5 IIs Landscape photography highlights
79
you can focus manually
interchangeable lenses (Micro Four Thirds mount)
screen is a good size (3 inch)
image stabilization (Sensor based 5-axis)
good megapixels (20MP)
good sensor size (Four Thirds)
very good ISO range (25,600)
exports RAW formats
environment proofing
better than average battery power (870 per charge)
has double storage slots
79
you can focus manually
swap lenses (Pentax KAF2 mount)
screen is a decent size (3 inch)
has image stabilization (Sensor based)
sensor resolution is decent (16 megapixels)
decent sensor size (APS-C)
doesnt have low pass filter
exports RAW files
environment sealing
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Vlogging Comparison

Olympus E-M1X as a Vlogging camera
Pentax K-5 IIs as a Vlogging camera
68
selfie friendly display
has touchscreen
image stabilization (Sensor based 5-axis)
includes face detection focus
video resolution high (4096 x 2160 pixels)
does have external microphone port
more heavy than others in class (997g)
33
has image stabilization (Sensor based)
has face detection focusing
high res video (1920 x 1080 pixels)
includes external microphone socket
doesn't have a selfie friendly screen
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Olympus E-M1X vs Pentax K-5 IIs Specifications

Detailed spec comparison table for Olympus E-M1X and Pentax K-5 IIs
 Olympus OM-D E-M1XPentax K-5 IIs
General Information
Manufacturer Olympus Pentax
Model Olympus OM-D E-M1X Pentax K-5 IIs
Class Pro Mirrorless Advanced DSLR
Introduced 2019-01-24 2013-06-04
Physical type SLR-style mirrorless Mid-size SLR
Sensor Information
Powered by Dual TruePic VIII Prime II
Sensor type CMOS CMOS
Sensor size Four Thirds APS-C
Sensor measurements 17.4 x 13mm 23.7 x 15.7mm
Sensor surface area 226.2mm² 372.1mm²
Sensor resolution 20 megapixels 16 megapixels
Anti aliasing filter
Aspect ratio 4:3 3:2
Highest resolution 5184 x 3888 4928 x 3264
Highest native ISO 25600 12800
Highest boosted ISO - 51200
Lowest native ISO 200 100
RAW support
Lowest boosted ISO 64 80
Autofocusing
Focus manually
AF touch
Continuous AF
AF single
AF tracking
AF selectice
Center weighted AF
AF multi area
Live view AF
Face detection focusing
Contract detection focusing
Phase detection focusing
Number of focus points 121 11
Cross focus points - 9
Lens
Lens mount Micro Four Thirds Pentax KAF2
Number of lenses 107 151
Focal length multiplier 2.1 1.5
Screen
Type of screen Fully Articulated Fixed Type
Screen diagonal 3" 3"
Screen resolution 1,037k dots 921k dots
Selfie friendly
Liveview
Touch friendly
Screen tech - TFT LCD monitor
Viewfinder Information
Viewfinder type Electronic Optical (pentaprism)
Viewfinder resolution 2,360k dots -
Viewfinder coverage 100 percent 100 percent
Viewfinder magnification 0.74x 0.61x
Features
Lowest shutter speed 60 seconds 30 seconds
Highest shutter speed 1/8000 seconds 1/8000 seconds
Highest silent shutter speed 1/32000 seconds -
Continuous shooting rate 60.0fps 7.0fps
Shutter priority
Aperture priority
Manual mode
Exposure compensation Yes Yes
Custom WB
Image stabilization
Integrated flash
Flash range no built-in flash 13.00 m (at ISO 100)
Flash modes 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, Slow sync, High speed, Rear curtain and Wireless
Hot shoe
AE bracketing
White balance bracketing
Highest flash synchronize - 1/180 seconds
Exposure
Multisegment exposure
Average exposure
Spot exposure
Partial exposure
AF area exposure
Center weighted exposure
Video features
Video resolutions 4096 x 2160 @ 24p / 237 Mbps, MOV, H.264, Linear PCM 1920 x 1080 (25 fps), 1280 x 720 (25, 30 fps), 640 x 480 (25, 30 fps)
Highest video resolution 4096x2160 1920x1080
Video file format MPEG-4, H.264 Motion JPEG
Microphone port
Headphone port
Connectivity
Wireless Built-In None
Bluetooth
NFC
HDMI
USB Yes (USB-PD allows charging by laptop or external power bank) USB 2.0 (480 Mbit/sec)
GPS Built-in Optional
Physical
Environmental sealing
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 997 grams (2.20 pounds) 760 grams (1.68 pounds)
Physical dimensions 144 x 147 x 75mm (5.7" x 5.8" x 3.0") 131 x 97 x 73mm (5.2" x 3.8" x 2.9")
DXO scores
DXO All around score not tested 82
DXO Color Depth score not tested 23.9
DXO Dynamic range score not tested 14.1
DXO Low light score not tested 1208
Other
Battery life 870 photos 980 photos
Battery type Built-in Battery Pack
Battery model - D-LI90
Self timer Yes (2 or 12 secs, custom) Yes ( 2 or 12 seconds)
Time lapse shooting
Type of storage - SD/SDHC/SDXC
Card slots Two Single
Pricing at launch $2,999 $749