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Olympus E-M10 III vs Pentax K-x

Portability
80
Imaging
55
Features
75
Overall
63
Olympus OM-D E-M10 Mark III front
 
Pentax K-x front
Portability
69
Imaging
52
Features
47
Overall
50

Olympus E-M10 III vs Pentax K-x 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
  • Revealed August 2017
  • Succeeded the Olympus E-M10 II
  • New Model is Olympus E-M10 IV
Pentax K-x
(Full Review)
  • 12MP - APS-C Sensor
  • 2.7" Fixed Screen
  • ISO 100 - 6400 (Boost to 12800)
  • Sensor based Image Stabilization
  • 1/6000s Max Shutter
  • 1280 x 720 video
  • Pentax KAF2 Mount
  • 580g - 123 x 92 x 68mm
  • Launched December 2009
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Olympus E-M10 III vs Pentax K-x Overview

Lets look closer at the Olympus E-M10 III versus Pentax K-x, one being a Entry-Level Mirrorless and the latter is a Entry-Level DSLR by manufacturers Olympus and Pentax. There exists a huge gap among the resolutions of the E-M10 III (16MP) and K-x (12MP) and the E-M10 III (Four Thirds) and K-x (APS-C) boast totally different sensor dimensions.

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The E-M10 III was brought out 7 years later than the K-x and that is a fairly significant gap as far as camera technology is concerned. Both of these cameras feature different body design with the Olympus E-M10 III being a SLR-style mirrorless camera and the Pentax K-x being a Compact SLR camera.

Before going into a comprehensive comparison, here is a simple overview of how the E-M10 III matches up vs the K-x for portability, imaging, features and an overall rating.

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

 E-M10 III K-x 
LaunchedAugust 2017December 2009Fresher by 94 months
Screen typeTiltingFixed Tilting screen
Screen size3"2.7"Bigger screen (+0.3")
Screen resolution1040k230kCrisper screen (+810k dot)
Touch screen Quickly navigate

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

 K-x E-M10 III 

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

 E-M10 III K-x 
Focus manually Dial accurate focusing
Selfie screen Neither provides selfie screen

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

For those who are planning to carry your camera frequently, you should take into account its weight and proportions. The Olympus E-M10 III provides outer dimensions 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-x has measurements of 123mm x 92mm x 68mm (4.8" x 3.6" x 2.7") and a weight of 580 grams (1.28 lbs).

Check out the Olympus E-M10 III versus Pentax K-x in the all new Camera with Lens Size Comparison Tool. Camera Size Comparison with Lenses

Take into consideration, the weight of an Interchangeable Lens Camera will differ depending on the lens you are utilising at that moment. Following is a front view overall size comparison of the E-M10 III against the K-x.

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

Looking at dimensions and weight, the portability grade of the E-M10 III and K-x is 80 and 69 respectively.

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

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

Normally, it is very tough to visualise the difference in sensor sizing purely by checking out technical specs. The visual underneath should provide you a clearer sense of the sensor dimensions in the E-M10 III and K-x.

As you can tell, both cameras feature different megapixels and different sensor sizing. The E-M10 III due to its smaller sensor will make achieving shallower DOF trickier and the Olympus E-M10 III will produce greater detail having its extra 4MP. Higher resolution will let you crop pictures way more aggressively. The newer E-M10 III will have an advantage when it comes to sensor innovation.

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

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

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

Portrait Comparison

Olympus E-M10 III Portrait photography info
Pentax K-x Portrait photography info
73
focusing manually
MP count good (16MP)
sensor size is decent (Four Thirds)
includes face detect focus
supports RAW formats
63
has manual focus
decent sensor size (APS-C)
includes face detection focus
exports RAW formats
low MP (12 megapixels)
Photography Glossary

Street Comparison

Street photography with Olympus E-M10 III
Street photography with Pentax K-x
77
screen tilts up and down
has image stabilization (Sensor based 5-axis)
sensor size is decent (Four Thirds)
supports RAW formats
supports touch to focus
above average ISO range (25,600)
more heavy than average (410g)
67
has image stabilization (Sensor based)
decent sensor size (APS-C)
exports RAW formats
screen does not articulate
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Sports Comparison

Olympus E-M10 III Sports photography advice
Pentax K-x Sports photography advice
69
quiet shutter (1/16,000s)
has image stabilization (Sensor based 5-axis)
MP count good (16 megapixels)
sensor size is decent (Four Thirds)
includes tracking focus
does not have phase detect auto focus
61
great max shutter speed (1/6,000s)
has image stabilization (Sensor based)
decent sensor size (APS-C)
good battery power (1,900 CIPA)
sensor has phase detect auto focus
slow frames per second (5.0 frames per second)
low MP (12 megapixels)
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Travel Comparison

Travel photography with Olympus E-M10 III
Travel photography with Pentax K-x
67
supports touch to focus
MP count good (16MP)
has built in flash
more heavy than average (410g)
does not offer selfie friendly display
54
good battery power (1,900 shots)
built-in flash
missing Time Lapse recording
low MP (12 megapixels)
doesn't offer selfie friendly display
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Landscape Comparison

Landscape photography with Olympus E-M10 III
Landscape photography with Pentax K-x
80
focusing manually
switch lenses (Micro Four Thirds mount)
good sized screen (3 inches)
has image stabilization (Sensor based 5-axis)
MP count good (16 megapixels)
sensor size is decent (Four Thirds)
above average ISO range (25,600)
supports RAW formats
61
has manual focus
interchangeable lenses (Pentax KAF2 mount)
has image stabilization (Sensor based)
decent sensor size (APS-C)
exports RAW formats
good battery power (1,900 CIPA)
tiny screen (2.7 inches)
low MP (12MP)
missing Time Lapse recording
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Vlogging Comparison

Olympus E-M10 III as a Vlogging camera
Pentax K-x as a Vlogging camera
32
screen is touchscreen
has image stabilization (Sensor based 5-axis)
includes face detect focus
high res video (3840 x 2160 resolution)
does not offer selfie friendly display
missing microphone socket
more heavy than average (410 grams)
27
has image stabilization (Sensor based)
includes face detection focus
doesn't offer selfie friendly display
video resolution low (1280 x 720 resolution)
missing external mic socket
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Olympus E-M10 III vs Pentax K-x Specifications

Detailed spec comparison table for Olympus E-M10 III and Pentax K-x
 Olympus OM-D E-M10 Mark IIIPentax K-x
General Information
Brand Olympus Pentax
Model type Olympus OM-D E-M10 Mark III Pentax K-x
Category Entry-Level Mirrorless Entry-Level DSLR
Revealed 2017-08-31 2009-12-23
Physical type SLR-style mirrorless Compact SLR
Sensor Information
Chip TruePic VIII Prime
Sensor type CMOS CMOS
Sensor size Four Thirds APS-C
Sensor dimensions 17.4 x 13mm 23.6 x 15.8mm
Sensor surface area 226.2mm² 372.9mm²
Sensor resolution 16MP 12MP
Anti alias filter
Aspect ratio 4:3 3:2
Full resolution 4608 x 3456 4288 x 2848
Max native ISO 25600 6400
Max boosted ISO - 12800
Lowest native ISO 200 100
RAW images
Lowest boosted ISO 100 -
Autofocusing
Focus manually
Autofocus touch
Autofocus continuous
Autofocus single
Tracking autofocus
Autofocus selectice
Center weighted autofocus
Multi area autofocus
Live view autofocus
Face detect focus
Contract detect focus
Phase detect focus
Total focus points 121 11
Lens
Lens support Micro Four Thirds Pentax KAF2
Amount of lenses 107 151
Focal length multiplier 2.1 1.5
Screen
Display type Tilting Fixed Type
Display sizing 3" 2.7"
Display resolution 1,040k dots 230k dots
Selfie friendly
Liveview
Touch functionality
Display technology - TFT LCD monitor
Viewfinder Information
Viewfinder Electronic Optical (pentamirror)
Viewfinder resolution 2,360k dots -
Viewfinder coverage 100 percent 96 percent
Viewfinder magnification 0.62x 0.57x
Features
Lowest shutter speed 60s 30s
Highest shutter speed 1/4000s 1/6000s
Highest quiet shutter speed 1/16000s -
Continuous shooting rate 8.6 frames per sec 5.0 frames per sec
Shutter priority
Aperture priority
Expose Manually
Exposure compensation Yes Yes
Custom white balance
Image stabilization
Integrated flash
Flash distance 5.80 m (at ISO 100) 16.00 m
Flash settings Auto, redeye, slow sync, 2nd-curtain slow sync, redeye slow sync, fill-in, manual, off Auto, On, Off, Red-Eye, Slow Sync, Rear curtain, Wireless
Hot shoe
AEB
White balance bracketing
Highest flash synchronize 1/250s 1/180s
Exposure
Multisegment metering
Average metering
Spot metering
Partial metering
AF area metering
Center weighted metering
Video features
Video resolutions 3840 x 2160 @ 30p / 102 Mbps, MOV, H.264, Linear PCM 1280 x 720 (24 fps), 640 x 416 (24 fps)
Max video resolution 3840x2160 1280x720
Video file format MPEG-4, H.264 Motion JPEG
Mic port
Headphone port
Connectivity
Wireless Built-In None
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS None None
Physical
Environmental sealing
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 410g (0.90 lbs) 580g (1.28 lbs)
Physical dimensions 122 x 84 x 50mm (4.8" x 3.3" x 2.0") 123 x 92 x 68mm (4.8" x 3.6" x 2.7")
DXO scores
DXO All around rating not tested 72
DXO Color Depth rating not tested 22.8
DXO Dynamic range rating not tested 12.5
DXO Low light rating not tested 811
Other
Battery life 330 photos 1900 photos
Style of battery Battery Pack Battery Pack
Battery ID BLS-50 4 x AA
Self timer Yes (2 or 12 secs, custom) Yes (2 or 12 sec)
Time lapse feature
Type of storage SD/SDHC/SDXC (UHS-I/II supported) SD/SDHC card
Card slots 1 1
Cost at launch $650 $600