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Olympus E-M1X vs Pentax K-x

Portability
54
Imaging
61
Features
93
Overall
73
Olympus OM-D E-M1X front
 
Pentax K-x front
Portability
69
Imaging
52
Features
47
Overall
50

Olympus E-M1X vs Pentax K-x 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
  • Launched January 2019
  • Succeeded the Olympus E-M1 II
Pentax K-x
(Full Review)
  • 12MP - APS-C Sensor
  • 2.7" Fixed Display
  • ISO 100 - 6400 (Push to 12800)
  • Sensor based Image Stabilization
  • 1/6000s Maximum Shutter
  • 1280 x 720 video
  • Pentax KAF2 Mount
  • 580g - 123 x 92 x 68mm
  • Released December 2009
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Olympus E-M1X vs Pentax K-x Overview

The following is a in depth analysis of the Olympus E-M1X versus Pentax K-x, former is a Pro Mirrorless while the other is a Entry-Level DSLR by brands Olympus and Pentax. There is a sizable difference among the image resolutions of the E-M1X (20MP) and K-x (12MP) and the E-M1X (Four Thirds) and K-x (APS-C) possess totally different sensor sizing.

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The E-M1X was introduced 9 years after the K-x which is a fairly significant difference as far as camera tech is concerned. Both of the cameras come with different body type with the Olympus E-M1X being a SLR-style mirrorless camera and the Pentax K-x being a Compact SLR camera.

Before we go straight into a step-by-step comparison, below is a short synopsis of how the E-M1X grades versus the K-x when considering portability, imaging, features and an overall mark.

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Reasons to pick Olympus E-M1X over the Pentax K-x

 E-M1X K-x 
ReleasedJanuary 2019December 2009Newer by 111 months
Display typeFully ArticulatedFixed Fully Articulating display
Display dimension3"2.7"Larger display (+0.3")
Display resolution1037k230kCrisper display (+807k dot)
Selfie screen Easy selfies
Touch display Easily navigate

Reasons to pick Pentax K-x over the Olympus E-M1X

 K-x E-M1X 

Common features in the Olympus E-M1X and Pentax K-x

 E-M1X K-x 
Manually focus Very precise focus

Olympus E-M1X vs Pentax K-x Physical Comparison

If you are intending to travel with your camera regularly, you'll need to think about its weight and dimensions. The Olympus E-M1X features physical dimensions of 144mm x 147mm x 75mm (5.7" x 5.8" x 3.0") accompanied by a weight of 997 grams (2.20 lbs) while the Pentax K-x has dimensions of 123mm x 92mm x 68mm (4.8" x 3.6" x 2.7") with a weight of 580 grams (1.28 lbs).

See the Olympus E-M1X versus Pentax K-x in our completely new Camera plus Lens Size Comparison Tool. Camera Size Comparison with Lenses

Do not forget, the weight of an ILC will differ depending on the lens you are working with at that moment. Here is the front view sizing comparison of the E-M1X vs the K-x.

Olympus E-M1X vs Pentax K-x size comparison

Factoring in size and weight, the portability grade of the E-M1X and K-x is 54 and 69 respectively.

Olympus E-M1X vs Pentax K-x top view buttons comparison

Olympus E-M1X vs Pentax K-x Sensor Comparison

Oftentimes, it's difficult to visualise the gap in sensor dimensions purely by seeing specifications. The picture here will give you a far better sense of the sensor dimensions in the E-M1X and K-x.

Plainly, both cameras have got different megapixels and different sensor dimensions. The E-M1X with its smaller sensor will make shooting shallow depth of field more challenging and the Olympus E-M1X will show more detail using its extra 8 Megapixels. Greater resolution will allow you to crop pics much more aggressively. The more modern E-M1X will have an edge with regard to sensor tech.

Olympus E-M1X vs Pentax K-x sensor size comparison

Olympus E-M1X vs Pentax K-x Screen and ViewFinder

Olympus E-M1X vs Pentax K-x Screen and Viewfinder comparison
Photography Glossary

Photography Type Scores

Portrait Comparison

Olympus E-M1X Portrait photography features
Pentax K-x Portrait photography features
76
focusing manually
good megapixels (20MP)
decent sensor size (Four Thirds)
supports face detection focusing
saves RAW files
63
you can focus manually
good sensor size (APS-C)
supports face detection autofocus
delivers RAW files
sensor resolution low (12 megapixels)
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Street Comparison

Olympus E-M1X Street photography highlights
Pentax K-x Street photography highlights
67
screen can move to multiple angles
built in image stabilization (Sensor based 5-axis)
decent sensor size (Four Thirds)
saves RAW files
includes touch focus
weather sealing
above average ISO range (25,600)
more heavy than competition (997 grams)
67
built in image stabilization (Sensor based)
good sensor size (APS-C)
delivers RAW files
no articulating screen
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Sports Comparison

Olympus E-M1X Sports photography factors
Pentax K-x Sports photography factors
80
high shutter speed (1/8,000s)
quiet shooting (1/32,000s)
high max fps (60.0 frames/s)
built in image stabilization (Sensor based 5-axis)
good megapixels (20 megapixels)
decent sensor size (Four Thirds)
supports tracking autofocus
weather sealing
better than average battery (870 per charge)
has phase detect AF
61
max shutter speed is good (1/6,000 seconds)
built in image stabilization (Sensor based)
good sensor size (APS-C)
great battery life (1,900 per charge)
sensor has phase detect autofocus
slow frames per second (5.0 frames/s)
sensor resolution low (12MP)
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Travel Comparison

Olympus E-M1X Travel photography factors
Pentax K-x Travel photography factors
68
better than average battery (870 CIPA)
weather sealing
supports bluetooth
includes touch focus
good megapixels (20 megapixels)
display is selfie friendly
more heavy than competition (997 grams)
54
great battery life (1,900 shots)
flash built-in
doesn't have Time Lapse mode
sensor resolution low (12 megapixels)
does not feature selfie friendly screen
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Landscape Comparison

Olympus E-M1X Landscape photography information
Pentax K-x Landscape photography information
79
focusing manually
interchangeable lenses (Micro Four Thirds mount)
nice screen size (3")
built in image stabilization (Sensor based 5-axis)
good megapixels (20 megapixels)
decent sensor size (Four Thirds)
above average ISO range (25,600)
saves RAW files
weather sealing
better than average battery (870 shots)
two card slots
61
you can focus manually
swap lenses (Pentax KAF2 mount)
built in image stabilization (Sensor based)
good sensor size (APS-C)
delivers RAW files
great battery life (1,900 CIPA)
small screen (2.7")
sensor resolution low (12 megapixels)
doesn't have Time Lapse mode
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Vlogging Comparison

Olympus E-M1X Vlogging factors
Pentax K-x Vlogging factors
68
display is selfie friendly
touchscreen
built in image stabilization (Sensor based 5-axis)
supports face detection focusing
high quality video (4096 x 2160 resolution)
has external microphone socket
more heavy than competition (997 grams)
27
built in image stabilization (Sensor based)
supports face detection autofocus
does not feature selfie friendly screen
low video resolution (1280 x 720 pixels)
doesn't have external mic port
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Olympus E-M1X vs Pentax K-x Specifications

Detailed spec comparison table for Olympus E-M1X and Pentax K-x
 Olympus OM-D E-M1XPentax K-x
General Information
Brand Name Olympus Pentax
Model Olympus OM-D E-M1X Pentax K-x
Category Pro Mirrorless Entry-Level DSLR
Launched 2019-01-24 2009-12-23
Body design SLR-style mirrorless Compact SLR
Sensor Information
Chip Dual 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 20MP 12MP
Anti aliasing filter
Aspect ratio 4:3 3:2
Peak resolution 5184 x 3888 4288 x 2848
Highest native ISO 25600 6400
Highest enhanced ISO - 12800
Lowest native ISO 200 100
RAW support
Lowest enhanced ISO 64 -
Autofocusing
Focus manually
AF touch
Continuous AF
AF single
Tracking AF
AF selectice
AF center weighted
AF multi area
Live view AF
Face detection focusing
Contract detection focusing
Phase detection focusing
Number of focus points 121 11
Lens
Lens mount Micro Four Thirds Pentax KAF2
Amount of lenses 107 151
Crop factor 2.1 1.5
Screen
Screen type Fully Articulated Fixed Type
Screen sizing 3" 2.7"
Resolution of screen 1,037k dot 230k dot
Selfie friendly
Liveview
Touch display
Screen technology - TFT LCD monitor
Viewfinder Information
Viewfinder type Electronic Optical (pentamirror)
Viewfinder resolution 2,360k dot -
Viewfinder coverage 100 percent 96 percent
Viewfinder magnification 0.74x 0.57x
Features
Minimum shutter speed 60 secs 30 secs
Fastest shutter speed 1/8000 secs 1/6000 secs
Fastest silent shutter speed 1/32000 secs -
Continuous shutter speed 60.0 frames/s 5.0 frames/s
Shutter priority
Aperture priority
Expose Manually
Exposure compensation Yes Yes
Custom WB
Image stabilization
Built-in flash
Flash range no built-in flash 16.00 m
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, Rear curtain, Wireless
Hot shoe
AE bracketing
White balance bracketing
Fastest flash sync - 1/180 secs
Exposure
Multisegment
Average
Spot
Partial
AF area
Center weighted
Video features
Video resolutions 4096 x 2160 @ 24p / 237 Mbps, MOV, H.264, Linear PCM 1280 x 720 (24 fps), 640 x 416 (24 fps)
Highest video resolution 4096x2160 1280x720
Video format MPEG-4, H.264 Motion JPEG
Mic jack
Headphone jack
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 None
Physical
Environment seal
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 997g (2.20 pounds) 580g (1.28 pounds)
Dimensions 144 x 147 x 75mm (5.7" x 5.8" x 3.0") 123 x 92 x 68mm (4.8" x 3.6" x 2.7")
DXO scores
DXO Overall score not tested 72
DXO Color Depth score not tested 22.8
DXO Dynamic range score not tested 12.5
DXO Low light score not tested 811
Other
Battery life 870 images 1900 images
Type of battery Built-in Battery Pack
Battery model - 4 x AA
Self timer Yes (2 or 12 secs, custom) Yes (2 or 12 sec)
Time lapse shooting
Type of storage - SD/SDHC card
Storage slots Dual Single
Price at release $2,999 $600