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Olympus E-M5 vs Pentax K-x

Portability
81
Imaging
52
Features
70
Overall
59
Olympus OM-D E-M5 front
 
Pentax K-x front
Portability
69
Imaging
52
Features
47
Overall
50

Olympus E-M5 vs Pentax K-x Key Specs

Olympus E-M5
(Full Review)
  • 16MP - Four Thirds Sensor
  • 3" Tilting Screen
  • ISO 200 - 25600
  • Sensor based 5-axis Image Stabilization
  • 1920 x 1080 video
  • Micro Four Thirds Mount
  • 425g - 122 x 89 x 43mm
  • Introduced April 2012
  • Refreshed by Olympus E-M5 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 Max Shutter
  • 1280 x 720 video
  • Pentax KAF2 Mount
  • 580g - 123 x 92 x 68mm
  • Introduced December 2009
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Olympus E-M5 vs Pentax K-x Overview

Its time to take a deeper look at the Olympus E-M5 vs Pentax K-x, one being a Advanced Mirrorless and the latter is a Entry-Level DSLR by manufacturers Olympus and Pentax. There is a big difference between the resolutions of the E-M5 (16MP) and K-x (12MP) and the E-M5 (Four Thirds) and K-x (APS-C) boast different sensor sizes.

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The E-M5 was manufactured 2 years later than the K-x and that is quite a big gap as far as tech is concerned. Both of these cameras feature different body design with the Olympus E-M5 being a SLR-style mirrorless camera and the Pentax K-x being a Compact SLR camera.

Before getting right into a detailed comparison, here is a quick introduction of how the E-M5 matches up against the K-x with regard to portability, imaging, features and an overall rating.

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Reasons to pick Olympus E-M5 over the Pentax K-x

 E-M5 K-x 
IntroducedApril 2012December 2009Fresher by 29 months
Screen typeTiltingFixed Tilting screen
Screen size3"2.7"Bigger screen (+0.3")
Screen resolution610k230kCrisper screen (+380k dot)
Touch screen Quickly navigate

Reasons to pick Pentax K-x over the Olympus E-M5

 K-x E-M5 

Common features in the Olympus E-M5 and Pentax K-x

 E-M5 K-x 
Focus manually Very precise focusing
Selfie screen Neither has selfie screen

Olympus E-M5 vs Pentax K-x Physical Comparison

For anybody who is aiming to carry your camera often, you'll need to factor in its weight and dimensions. The Olympus E-M5 has outside measurements of 122mm x 89mm x 43mm (4.8" x 3.5" x 1.7") and a weight of 425 grams (0.94 lbs) whilst the Pentax K-x has dimensions of 123mm x 92mm x 68mm (4.8" x 3.6" x 2.7") accompanied by a weight of 580 grams (1.28 lbs).

Take a look at the Olympus E-M5 vs Pentax K-x in the latest Camera and Lens Size Comparison Tool. Camera Size Comparison with Lenses

Take into consideration, the weight of an Interchangeable Lens Camera will vary based on the lens you have at that moment. Underneath is a front view over all size comparison of the E-M5 versus the K-x.

Olympus E-M5 vs Pentax K-x size comparison

Considering size and weight, the portability score of the E-M5 and K-x is 81 and 69 respectively.

Olympus E-M5 vs Pentax K-x top view buttons comparison

Olympus E-M5 vs Pentax K-x Sensor Comparison

Usually, it can be difficult to imagine the contrast between sensor sizing merely by reading through specifications. The visual below should offer you a better sense of the sensor measurements in the E-M5 and K-x.

To sum up, both the cameras come with different megapixels and different sensor sizing. The E-M5 because of its tinier sensor is going to make shooting shallower depth of field more difficult and the Olympus E-M5 will give you extra detail due to its extra 4MP. Higher resolution can also enable you to crop shots a good deal more aggressively. The younger E-M5 should have an advantage with regard to sensor tech.

Olympus E-M5 vs Pentax K-x sensor size comparison

Olympus E-M5 vs Pentax K-x Screen and ViewFinder

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

Portrait Comparison

Olympus E-M5 Portrait photography info
Pentax K-x Portrait photography info
71
has manual focus
MP count decent (16 megapixels)
decent sensor size (Four Thirds)
has face detect focus
saves RAW formats
63
has manual focus
sensor size is decent (APS-C)
features face detect focusing
delivers RAW files
MP count low (12MP)
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Street Comparison

Olympus E-M5 Street photography features
Pentax K-x Street photography features
82
has a tilting screen
image stabilization (Sensor based 5-axis)
decent sensor size (Four Thirds)
saves RAW formats
features touch focus
weather sealing
very good high ISO (25,600)
67
has image stabilization (Sensor based)
sensor size is decent (APS-C)
delivers RAW files
no articulating screen
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Sports Comparison

Olympus E-M5 Sports photography information
Pentax K-x Sports photography information
67
image stabilization (Sensor based 5-axis)
MP count decent (16MP)
decent sensor size (Four Thirds)
has tracking focus
weather sealing
doesn't have phase detect auto focus
61
high shutter speed (1/6,000s)
has image stabilization (Sensor based)
sensor size is decent (APS-C)
good battery life (1,900 CIPA)
comes with phase detect AF
painfully slow continuous shooting (5.0 fps)
MP count low (12MP)
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Travel Comparison

Olympus E-M5 Travel photography highlights
Pentax K-x Travel photography highlights
66
weather sealing
features touch focus
MP count decent (16MP)
no Time Lapse mode
screen is not selfie friendly
54
good battery life (1,900 per charge)
has built in flash
missing Time Lapse recording
MP count low (12 megapixels)
screen isn't selfie friendly
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Landscape Comparison

Olympus E-M5 as a Landscape photography camera
Pentax K-x as a Landscape photography camera
73
has manual focus
change lenses (Micro Four Thirds mount)
screen size is decent (3 inch)
image stabilization (Sensor based 5-axis)
MP count decent (16MP)
decent sensor size (Four Thirds)
very good high ISO (25,600)
saves RAW formats
weather sealing
no Time Lapse mode
61
has manual focus
swap lenses (Pentax KAF2 mount)
has image stabilization (Sensor based)
sensor size is decent (APS-C)
delivers RAW files
good battery life (1,900 shots)
small screen (2.7")
MP count low (12MP)
missing Time Lapse recording
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Vlogging Comparison

Vlogging with Olympus E-M5
Vlogging with Pentax K-x
34
built-in touchscreen
image stabilization (Sensor based 5-axis)
has face detect focus
video resolution high (1920 x 1080 resolution)
screen is not selfie friendly
no mic port
27
has image stabilization (Sensor based)
features face detect focusing
screen isn't selfie friendly
video res low (1280 x 720 pxls)
missing mic port
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Olympus E-M5 vs Pentax K-x Specifications

Detailed spec comparison table for Olympus E-M5 and Pentax K-x
 Olympus OM-D E-M5Pentax K-x
General Information
Brand Olympus Pentax
Model Olympus OM-D E-M5 Pentax K-x
Class Advanced Mirrorless Entry-Level DSLR
Introduced 2012-04-30 2009-12-23
Body design SLR-style mirrorless Compact SLR
Sensor Information
Processor Chip TruePic VI Prime
Sensor type CMOS CMOS
Sensor size Four Thirds APS-C
Sensor dimensions 17.3 x 13mm 23.6 x 15.8mm
Sensor surface area 224.9mm² 372.9mm²
Sensor resolution 16 megapixel 12 megapixel
Anti aliasing filter
Aspect ratio 1:1, 4:3, 3:2 and 16:9 3:2
Max resolution 4608 x 3456 4288 x 2848
Max native ISO 25600 6400
Max enhanced ISO - 12800
Min native ISO 200 100
RAW data
Min enhanced ISO 100 -
Autofocusing
Focus manually
Touch to focus
Autofocus continuous
Autofocus single
Tracking autofocus
Autofocus selectice
Autofocus center weighted
Multi area autofocus
Live view autofocus
Face detection autofocus
Contract detection autofocus
Phase detection autofocus
Number of focus points 35 11
Lens
Lens mount Micro Four Thirds Pentax KAF2
Total lenses 107 151
Crop factor 2.1 1.5
Screen
Range of screen Tilting Fixed Type
Screen sizing 3 inch 2.7 inch
Screen resolution 610k dot 230k dot
Selfie friendly
Liveview
Touch functionality
Screen technology Touch control in electrostatic capacitance type OLED monitor 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
Minimum shutter speed 60s 30s
Fastest shutter speed 1/4000s 1/6000s
Continuous shutter speed 9.0fps 5.0fps
Shutter priority
Aperture priority
Manual exposure
Exposure compensation Yes Yes
Change white balance
Image stabilization
Inbuilt flash
Flash range no built-in flash 16.00 m
Flash options Auto, On, Off, Red-Eye, Fill-in, Slow Sync (2), Manual (3 levels) Auto, On, Off, Red-Eye, Slow Sync, Rear curtain, Wireless
External flash
AE bracketing
White balance bracketing
Fastest flash sync 1/250s 1/180s
Exposure
Multisegment
Average
Spot
Partial
AF area
Center weighted
Video features
Supported video resolutions 1920 x 1080 (60 fps), 1280 x 720 (60, 30 fps), 640 x 480 (30 fps) 1280 x 720 (24 fps), 640 x 416 (24 fps)
Max video resolution 1920x1080 1280x720
Video format H.264, Motion JPEG Motion JPEG
Mic jack
Headphone jack
Connectivity
Wireless Eye-Fi Connected None
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS None None
Physical
Environment seal
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 425g (0.94 lbs) 580g (1.28 lbs)
Physical dimensions 122 x 89 x 43mm (4.8" x 3.5" x 1.7") 123 x 92 x 68mm (4.8" x 3.6" x 2.7")
DXO scores
DXO Overall score 71 72
DXO Color Depth score 22.8 22.8
DXO Dynamic range score 12.3 12.5
DXO Low light score 826 811
Other
Battery life 360 images 1900 images
Form of battery Battery Pack Battery Pack
Battery model BLN-1 4 x AA
Self timer Yes (2 or 12 sec) Yes (2 or 12 sec)
Time lapse feature
Storage media SD/SDHC/SDXC SD/SDHC card
Storage slots 1 1
Cost at release $799 $600