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Olympus E-M1 II vs Pentax K-x

Portability
68
Imaging
59
Features
93
Overall
72
Olympus OM-D E-M1 Mark II front
 
Pentax K-x front
Portability
69
Imaging
52
Features
47
Overall
50

Olympus E-M1 II vs Pentax K-x Key Specs

Olympus E-M1 II
(Full Review)
  • 20MP - Four Thirds Sensor
  • 3" Fully Articulated Screen
  • ISO 200 - 25600
  • Sensor based 5-axis Image Stabilization
  • No Anti-Alias Filter
  • 1/8000s Maximum Shutter
  • 4096 x 2160 video
  • Micro Four Thirds Mount
  • 574g - 134 x 91 x 67mm
  • Announced September 2016
  • Succeeded the Olympus E-M1
  • Updated by Olympus E-M1 III
Pentax K-x
(Full Review)
  • 12MP - APS-C Sensor
  • 2.7" Fixed Display
  • ISO 100 - 6400 (Raise to 12800)
  • Sensor based Image Stabilization
  • 1/6000s Maximum Shutter
  • 1280 x 720 video
  • Pentax KAF2 Mount
  • 580g - 123 x 92 x 68mm
  • Announced December 2009
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Olympus E-M1 II vs Pentax K-x Overview

Let's look closer at the Olympus E-M1 II versus Pentax K-x, former is a Pro Mirrorless while the other is a Entry-Level DSLR by rivals Olympus and Pentax. There exists a considerable gap between the image resolutions of the E-M1 II (20MP) and K-x (12MP) and the E-M1 II (Four Thirds) and K-x (APS-C) provide different sensor sizing.

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The E-M1 II was unveiled 6 years after the K-x which is quite a large difference as far as technology is concerned. Both of these cameras feature different body design with the Olympus E-M1 II being a SLR-style mirrorless camera and the Pentax K-x being a Compact SLR camera.

Before delving into a full comparison, here is a simple view of how the E-M1 II scores versus the K-x for portability, imaging, features and an overall score.

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Reasons to pick Olympus E-M1 II over the Pentax K-x

 E-M1 II K-x 
AnnouncedSeptember 2016December 2009More modern by 83 months
Display typeFully ArticulatedFixed Fully Articulating display
Display size3"2.7"Larger display (+0.3")
Display resolution1037k230kSharper display (+807k dot)
Selfie screen Take selfies
Touch display Easily navigate

Reasons to pick Pentax K-x over the Olympus E-M1 II

 K-x E-M1 II 

Common features in the Olympus E-M1 II and Pentax K-x

 E-M1 II K-x 
Manual focus Dial precise focus

Olympus E-M1 II vs Pentax K-x Physical Comparison

For anyone who is looking to carry around your camera regularly, you will have to consider its weight and dimensions. The Olympus E-M1 II enjoys physical measurements of 134mm x 91mm x 67mm (5.3" x 3.6" x 2.6") along with a weight of 574 grams (1.27 lbs) whilst the Pentax K-x has dimensions of 123mm x 92mm x 68mm (4.8" x 3.6" x 2.7") and a weight of 580 grams (1.28 lbs).

Analyze the Olympus E-M1 II versus Pentax K-x in our newest Camera plus Lens Size Comparison Tool. Camera Size Comparison with Lenses

Take into account, the weight of an ILC will vary depending on the lens you have attached at the time. Following is a front view overall size comparison of the E-M1 II versus the K-x.

Olympus E-M1 II vs Pentax K-x size comparison

Looking at dimensions and weight, the portability grade of the E-M1 II and K-x is 68 and 69 respectively.

Olympus E-M1 II vs Pentax K-x top view buttons comparison

Olympus E-M1 II vs Pentax K-x Sensor Comparison

Normally, it's difficult to visualize the gap between sensor sizes purely by looking at specifications. The image below might provide you a far better sense of the sensor sizing in the E-M1 II and K-x.

Plainly, both cameras feature different resolutions and different sensor sizes. The E-M1 II with its tinier sensor is going to make achieving shallow DOF more challenging and the Olympus E-M1 II will give you greater detail having an extra 8MP. Greater resolution will also make it easier to crop pics way more aggressively. The more recent E-M1 II should have a benefit in sensor tech.

Olympus E-M1 II vs Pentax K-x sensor size comparison

Olympus E-M1 II vs Pentax K-x Screen and ViewFinder

Olympus E-M1 II vs Pentax K-x Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Olympus E-M1 II Portrait photography details
Pentax K-x Portrait photography details
75
focusing manually
decent sensor resolution (20MP)
sensor size is decent (Four Thirds)
supports face detection focusing
exports RAW files
63
focusing manually
sensor size is good (APS-C)
provides face detection focusing
supports RAW formats
megapixel count low (12MP)
Photography Glossary

Street Comparison

Olympus E-M1 II Street photography highlights
Pentax K-x Street photography highlights
78
screen articulates
has image stabilization (Sensor based 5-axis)
sensor size is decent (Four Thirds)
exports RAW files
supports focus via touch
environment sealing
lighter than average (574g)
good high ISO (25,600)
67
image stabilization (Sensor based)
sensor size is good (APS-C)
supports RAW formats
no articulating screen
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Sports Comparison

Olympus E-M1 II Sports photography features
Pentax K-x Sports photography features
74
maximum shutter speed is high (1/8,000 seconds)
silent mode (1/32,000 seconds)
high max frames per second (60.0 fps)
has image stabilization (Sensor based 5-axis)
decent sensor resolution (20 megapixels)
sensor size is decent (Four Thirds)
supports tracking autofocus
environment sealing
supports phase detect AF
terrible battery power (350 CIPA)
61
max shutter speed is good (1/6,000s)
image stabilization (Sensor based)
sensor size is good (APS-C)
good battery pack (1,900 shots)
comes with phase detect AF
painfully slow continuous shooting (5.0 frames per second)
megapixel count low (12 megapixels)
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Travel Comparison

Olympus E-M1 II Travel photography advice
Pentax K-x Travel photography advice
72
lighter than average (574 grams)
environment sealing
supports focus via touch
decent sensor resolution (20MP)
display is selfie friendly
terrible battery power (350 CIPA)
54
good battery pack (1,900 per charge)
has built in flash
does not have Timelapse mode
megapixel count low (12MP)
screen is not selfie friendly
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Landscape Comparison

Olympus E-M1 II as a Landscape photography camera
Pentax K-x as a Landscape photography camera
76
focusing manually
swap lenses (Micro Four Thirds mount)
decent sized screen (3 inch)
has image stabilization (Sensor based 5-axis)
decent sensor resolution (20MP)
sensor size is decent (Four Thirds)
does not have anti-alias filter
good high ISO (25,600)
exports RAW files
environment sealing
has dual storage slots
terrible battery power (350 shots)
61
focusing manually
change lenses (Pentax KAF2 mount)
image stabilization (Sensor based)
sensor size is good (APS-C)
supports RAW formats
good battery pack (1,900 CIPA)
screen is somewhat small (2.7 inches)
megapixel count low (12MP)
does not have Timelapse mode
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Vlogging Comparison

Olympus E-M1 II Vlogging information
Pentax K-x Vlogging information
79
display is selfie friendly
built-in touchscreen
has image stabilization (Sensor based 5-axis)
supports face detection focusing
great video quality (4096 x 2160 pixels)
comes with external mic jack
lighter than average (574g)
27
image stabilization (Sensor based)
provides face detection focusing
screen is not selfie friendly
low res video (1280 x 720 pixels)
does not have external microphone socket
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Olympus E-M1 II vs Pentax K-x Specifications

Detailed spec comparison table for Olympus E-M1 II and Pentax K-x
 Olympus OM-D E-M1 Mark IIPentax K-x
General Information
Company Olympus Pentax
Model type Olympus OM-D E-M1 Mark II Pentax K-x
Type Pro Mirrorless Entry-Level DSLR
Announced 2016-09-19 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 measurements 17.4 x 13mm 23.6 x 15.8mm
Sensor area 226.2mm² 372.9mm²
Sensor resolution 20 megapixels 12 megapixels
Anti alias filter
Aspect ratio 4:3 3:2
Peak resolution 5184 x 3888 4288 x 2848
Highest native ISO 25600 6400
Highest enhanced ISO - 12800
Min native ISO 200 100
RAW photos
Min enhanced ISO 64 -
Autofocusing
Focus manually
AF touch
Continuous AF
AF single
AF tracking
Selective AF
AF center weighted
AF multi area
AF live view
Face detection AF
Contract detection AF
Phase detection AF
Total focus points 121 11
Lens
Lens mount type Micro Four Thirds Pentax KAF2
Amount of lenses 107 151
Focal length multiplier 2.1 1.5
Screen
Type of screen Fully Articulated Fixed Type
Screen size 3" 2.7"
Screen resolution 1,037 thousand dots 230 thousand dots
Selfie friendly
Liveview
Touch capability
Screen tech - TFT LCD monitor
Viewfinder Information
Viewfinder type Electronic Optical (pentamirror)
Viewfinder resolution 2,360 thousand dots -
Viewfinder coverage 100% 96%
Viewfinder magnification 0.74x 0.57x
Features
Min shutter speed 60 seconds 30 seconds
Max shutter speed 1/8000 seconds 1/6000 seconds
Max silent shutter speed 1/32000 seconds -
Continuous shutter rate 60.0 frames per second 5.0 frames per second
Shutter priority
Aperture priority
Manual mode
Exposure compensation Yes Yes
Change WB
Image stabilization
Built-in flash
Flash distance 9.10 m (at ISO 100) 16.00 m
Flash options 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
Auto exposure bracketing
White balance bracketing
Max flash synchronize 1/250 seconds 1/180 seconds
Exposure
Multisegment metering
Average metering
Spot metering
Partial metering
AF area metering
Center weighted metering
Video features
Video resolutions 4096 x 2160 @ 24p / 237 Mbps, MOV, H.264, Linear PCM, 3840 x 2160 @ 30p / 102 Mbps, MOV, H.264, Linear PCM 1280 x 720 (24 fps), 640 x 416 (24 fps)
Highest video resolution 4096x2160 1280x720
Video file format MOV, H.264 Motion JPEG
Microphone port
Headphone port
Connectivity
Wireless Built-In None
Bluetooth
NFC
HDMI
USB USB 3.0 (5 GBit/sec) USB 2.0 (480 Mbit/sec)
GPS None None
Physical
Environmental sealing
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 574g (1.27 lbs) 580g (1.28 lbs)
Physical dimensions 134 x 91 x 67mm (5.3" x 3.6" x 2.6") 123 x 92 x 68mm (4.8" x 3.6" x 2.7")
DXO scores
DXO Overall rating 80 72
DXO Color Depth rating 23.7 22.8
DXO Dynamic range rating 12.8 12.5
DXO Low light rating 1312 811
Other
Battery life 350 pictures 1900 pictures
Battery type Battery Pack Battery Pack
Battery ID BLH-1 4 x AA
Self timer Yes (2 or 12 secs, custom) Yes (2 or 12 sec)
Time lapse recording
Type of storage Dual SD/SDHC/SDXC slots SD/SDHC card
Card slots 2 One
Price at release $1,700 $600