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Olympus E-M10 vs Pentax K-x

Portability
82
Imaging
53
Features
73
Overall
61
Olympus OM-D E-M10 front
 
Pentax K-x front
Portability
69
Imaging
52
Features
47
Overall
50

Olympus E-M10 vs Pentax K-x Key Specs

Olympus E-M10
(Full Review)
  • 16MP - Four Thirds Sensor
  • 3" Tilting Screen
  • ISO 200 - 25600
  • Sensor based Image Stabilization
  • 1920 x 1080 video
  • Micro Four Thirds Mount
  • 396g - 119 x 82 x 46mm
  • Revealed March 2014
  • Successor is Olympus E-M10 II
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 Maximum Shutter
  • 1280 x 720 video
  • Pentax KAF2 Mount
  • 580g - 123 x 92 x 68mm
  • Revealed December 2009
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Olympus E-M10 vs Pentax K-x Overview

On this page, we will be reviewing the Olympus E-M10 and Pentax K-x, former being a Entry-Level Mirrorless while the latter is a Entry-Level DSLR by brands Olympus and Pentax. There is a noticeable difference among the image resolutions of the E-M10 (16MP) and K-x (12MP) and the E-M10 (Four Thirds) and K-x (APS-C) offer totally different sensor dimensions.

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The E-M10 was launched 4 years later than the K-x and that is a fairly sizable difference as far as camera tech is concerned. Both the cameras have different body design with the Olympus E-M10 being a SLR-style mirrorless camera and the Pentax K-x being a Compact SLR camera.

Before we go right into a more detailed comparison, here is a simple summary of how the E-M10 grades vs the K-x when considering portability, imaging, features and an overall rating.

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

 E-M10 K-x 
RevealedMarch 2014December 2009Fresher by 52 months
Screen typeTiltingFixed Tilting screen
Screen dimensions3"2.7"Bigger screen (+0.3")
Screen resolution1037k230kCrisper screen (+807k dot)
Touch friendly screen Quickly navigate

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

 K-x E-M10 

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

 E-M10 K-x 
Manually focus Dial exact focusing
Selfie screen Absent selfie screen

Olympus E-M10 vs Pentax K-x Physical Comparison

When you are planning to carry your camera often, you'll need to take into account its weight and dimensions. The Olympus E-M10 has exterior dimensions of 119mm x 82mm x 46mm (4.7" x 3.2" x 1.8") and a weight of 396 grams (0.87 lbs) whilst the Pentax K-x has dimensions of 123mm x 92mm x 68mm (4.8" x 3.6" x 2.7") having a weight of 580 grams (1.28 lbs).

Analyze the Olympus E-M10 and Pentax K-x in our newest Camera plus Lens Size Comparison Tool. Camera Size Comparison with Lenses

Take into consideration, the weight of an ILC will vary depending on the lens you are employing at that moment. Here is a front view sizing comparison of the E-M10 compared to the K-x.

Olympus E-M10 vs Pentax K-x size comparison

Looking at size and weight, the portability rating of the E-M10 and K-x is 82 and 69 respectively.

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

Olympus E-M10 vs Pentax K-x Sensor Comparison

Often, it's tough to see the contrast in sensor sizing only by going through a spec sheet. The graphic below should provide you a stronger sense of the sensor sizes in the E-M10 and K-x.

As you can see, each of these cameras have different megapixel count and different sensor sizing. The E-M10 featuring a smaller sensor will make getting shallow DOF tougher and the Olympus E-M10 will provide more detail utilizing its extra 4MP. Higher resolution will also make it easier to crop pictures a bit more aggressively. The newer E-M10 will have an edge in sensor technology.

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

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

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

Portrait Comparison

Olympus E-M10 Portrait photography advice
Pentax K-x Portrait photography advice
71
has manual focus
decent megapixels (16MP)
sensor size is decent (Four Thirds)
has face detect autofocus
saves RAW formats
63
focusing manually
nice sensor size (APS-C)
provides face detect focusing
supports RAW formats
low MP (12MP)
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Street Comparison

Olympus E-M10 Street photography factors
Pentax K-x Street photography factors
77
screen tilts
built in image stabilization (Sensor based)
sensor size is decent (Four Thirds)
saves RAW formats
has focus via touch
very good high ISO (25,600)
more heavy than competitors (396 grams)
67
has image stabilization (Sensor based)
nice sensor size (APS-C)
supports RAW formats
no articulating screen
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Sports Comparison

Sports photography with Olympus E-M10
Sports photography with Pentax K-x
66
built in image stabilization (Sensor based)
decent megapixels (16MP)
sensor size is decent (Four Thirds)
has tracking focus
lacks phase detect autofocus
61
max shutter speed is good (1/6,000 seconds)
has image stabilization (Sensor based)
nice sensor size (APS-C)
better than average battery pack (1,900 per charge)
supports phase detect AF
slow frames per second (5.0 fps)
low MP (12 megapixels)
Photography Glossary

Travel Comparison

Olympus E-M10 as a Travel photography camera
Pentax K-x as a Travel photography camera
67
has focus via touch
decent megapixels (16 megapixels)
has built in flash
more heavy than competitors (396 grams)
doesn't feature selfie friendly screen
54
better than average battery pack (1,900 shots)
has built in flash
does not have Time Lapse function
low MP (12MP)
does not feature selfie friendly screen
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Landscape Comparison

Olympus E-M10 Landscape photography details
Pentax K-x Landscape photography details
79
has manual focus
change lenses (Micro Four Thirds mount)
decent sized screen (3 inch)
built in image stabilization (Sensor based)
decent megapixels (16MP)
sensor size is decent (Four Thirds)
very good high ISO (25,600)
saves RAW formats
61
focusing manually
swap lenses (Pentax KAF2 mount)
has image stabilization (Sensor based)
nice sensor size (APS-C)
supports RAW formats
better than average battery pack (1,900 CIPA)
screen is somewhat small (2.7")
low MP (12MP)
does not have Time Lapse function
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Vlogging Comparison

Olympus E-M10 as a Vlogging camera
Pentax K-x as a Vlogging camera
33
screen is touchscreen
built in image stabilization (Sensor based)
has face detect autofocus
video res high (1920 x 1080 resolution)
doesn't feature selfie friendly screen
does not have microphone port
more heavy than competitors (396 grams)
27
has image stabilization (Sensor based)
provides face detect focusing
does not feature selfie friendly screen
video res low (1280 x 720 pixels)
does not have mic jack
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Olympus E-M10 vs Pentax K-x Specifications

Detailed spec comparison table for Olympus E-M10 and Pentax K-x
 Olympus OM-D E-M10Pentax K-x
General Information
Manufacturer Olympus Pentax
Model type Olympus OM-D E-M10 Pentax K-x
Category Entry-Level Mirrorless Entry-Level DSLR
Revealed 2014-03-18 2009-12-23
Body design SLR-style mirrorless Compact SLR
Sensor Information
Processor Chip TruePic VII Prime
Sensor type CMOS CMOS
Sensor size Four Thirds APS-C
Sensor dimensions 17.3 x 13mm 23.6 x 15.8mm
Sensor area 224.9mm² 372.9mm²
Sensor resolution 16MP 12MP
Anti alias filter
Aspect ratio 1:1, 4:3, 3:2 and 16:9 3:2
Peak resolution 4608 x 3456 4288 x 2848
Highest native ISO 25600 6400
Highest enhanced ISO - 12800
Minimum native ISO 200 100
RAW images
Autofocusing
Manual focusing
Touch to focus
Autofocus continuous
Single autofocus
Autofocus tracking
Autofocus selectice
Autofocus center weighted
Multi area autofocus
Live view autofocus
Face detection focus
Contract detection focus
Phase detection focus
Total focus points 81 11
Lens
Lens mount type Micro Four Thirds Pentax KAF2
Total lenses 107 151
Crop factor 2.1 1.5
Screen
Range of screen Tilting Fixed Type
Screen size 3" 2.7"
Screen resolution 1,037k dot 230k dot
Selfie friendly
Liveview
Touch capability
Screen technology TFT LCD TFT LCD monitor
Viewfinder Information
Viewfinder type Electronic Optical (pentamirror)
Viewfinder resolution 1,440k dot -
Viewfinder coverage 100 percent 96 percent
Viewfinder magnification 0.58x 0.57x
Features
Min shutter speed 60 seconds 30 seconds
Max shutter speed 1/4000 seconds 1/6000 seconds
Continuous shutter speed 8.0 frames/s 5.0 frames/s
Shutter priority
Aperture priority
Manually set exposure
Exposure compensation Yes Yes
Custom white balance
Image stabilization
Built-in flash
Flash distance 5.80 m (ISO100) 16.00 m
Flash settings Flash Auto, Redeye, Fill-in, Flash Off, Red-eye Slow sync.(1st curtain), Slow sync.(1st curtain), Slow sync.(2nd curtain), Manual(1/1(FULL)~1/64) Auto, On, Off, Red-Eye, Slow Sync, Rear curtain, Wireless
External flash
AE bracketing
White balance bracketing
Max 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 (30p), 1280 x 720 (30p), 640 x 480 (30 fps) 1280 x 720 (24 fps), 640 x 416 (24 fps)
Highest video resolution 1920x1080 1280x720
Video data format H.264, Motion JPEG Motion JPEG
Mic input
Headphone input
Connectivity
Wireless Built-In None
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS Optional None
Physical
Environment seal
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 396 grams (0.87 pounds) 580 grams (1.28 pounds)
Physical dimensions 119 x 82 x 46mm (4.7" x 3.2" x 1.8") 123 x 92 x 68mm (4.8" x 3.6" x 2.7")
DXO scores
DXO Overall rating 72 72
DXO Color Depth rating 22.8 22.8
DXO Dynamic range rating 12.3 12.5
DXO Low light rating 884 811
Other
Battery life 320 images 1900 images
Form of battery Battery Pack Battery Pack
Battery ID BLS-5 4 x AA
Self timer Yes (12 sec., 2 sec.,custom (Waiting time 1-30sec.,Shooting interval 0.5/1/2/3sec.,Number of shots 1-10)) Yes (2 or 12 sec)
Time lapse recording
Storage media SD/SDHC/SDXC SD/SDHC card
Storage slots Single Single
Launch pricing $600 $600