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Olympus E-M1 vs Pentax K-5 IIs

Portability
71
Imaging
53
Features
85
Overall
65
Olympus OM-D E-M1 front
 
Pentax K-5 IIs front
Portability
60
Imaging
58
Features
83
Overall
68

Olympus E-M1 vs Pentax K-5 IIs Key Specs

Olympus E-M1
(Full Review)
  • 16MP - Four Thirds Sensor
  • 3" Tilting Screen
  • ISO 100 - 25600
  • Sensor based 5-axis Image Stabilization
  • 1/8000s Maximum Shutter
  • 1920 x 1080 video
  • Micro Four Thirds Mount
  • 497g - 130 x 94 x 63mm
  • Revealed October 2013
  • Refreshed by Olympus E-M1 II
Pentax K-5 IIs
(Full Review)
  • 16MP - APS-C Sensor
  • 3" Fixed Screen
  • ISO 100 - 12800 (Bump to 51200)
  • Sensor based Image Stabilization
  • No Anti-Alias Filter
  • 1/8000s Maximum Shutter
  • 1920 x 1080 video
  • Pentax KAF2 Mount
  • 760g - 131 x 97 x 73mm
  • Launched June 2013
  • Replaced the Pentax K-5
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Olympus E-M1 vs Pentax K-5 IIs Overview

The following is a in depth analysis of the Olympus E-M1 vs Pentax K-5 IIs, former is a Pro Mirrorless while the latter is a Advanced DSLR by companies Olympus and Pentax. The image resolution of the E-M1 (16MP) and the K-5 IIs (16MP) is relatively similar but the E-M1 (Four Thirds) and K-5 IIs (APS-C) posses totally different sensor dimensions.

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The E-M1 was released 5 months after the K-5 IIs which means that they are of a similar age. Both of the cameras feature different body design with the Olympus E-M1 being a SLR-style mirrorless camera and the Pentax K-5 IIs being a Mid-size SLR camera.

Before going into a more detailed comparison, here is a concise highlight of how the E-M1 matches up against the K-5 IIs in terms of portability, imaging, features and an overall mark.

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Reasons to pick Olympus E-M1 over the Pentax K-5 IIs

 E-M1 K-5 IIs 
Screen typeTiltingFixed Tilting screen
Screen resolution1037k921kSharper screen (+116k dot)
Touch screen Quickly navigate

Reasons to pick Pentax K-5 IIs over the Olympus E-M1

 K-5 IIs E-M1 

Common features in the Olympus E-M1 and Pentax K-5 IIs

 E-M1 K-5 IIs 
LaunchedOctober 2013June 2013Similar age
Manual focus More precise focusing
Screen size3"3"Same screen sizing
Selfie screen Lack of selfie screen

Olympus E-M1 vs Pentax K-5 IIs Physical Comparison

When you are intending to travel with your camera, you have to consider its weight and proportions. The Olympus E-M1 features exterior measurements of 130mm x 94mm x 63mm (5.1" x 3.7" x 2.5") and a weight of 497 grams (1.10 lbs) whilst the Pentax K-5 IIs has measurements of 131mm x 97mm x 73mm (5.2" x 3.8" x 2.9") and a weight of 760 grams (1.68 lbs).

Compare the Olympus E-M1 vs Pentax K-5 IIs in our completely new Camera plus Lens Size Comparison Tool. Camera Size Comparison with Lenses

Always remember, the weight of an ILC will vary depending on the lens you are utilizing at that time. Underneath is a front view dimensions comparison of the E-M1 compared to the K-5 IIs.

Olympus E-M1 vs Pentax K-5 IIs size comparison

Taking into consideration size and weight, the portability rating of the E-M1 and K-5 IIs is 71 and 60 respectively.

Olympus E-M1 vs Pentax K-5 IIs top view buttons comparison

Olympus E-M1 vs Pentax K-5 IIs Sensor Comparison

Usually, it's tough to see the gap between sensor dimensions merely by reviewing technical specs. The pic below might give you a much better sense of the sensor measurements in the E-M1 and K-5 IIs.

As you have seen, both of those cameras come with the identical resolution albeit not the same sensor dimensions. The E-M1 offers the tinier sensor which is going to make achieving bokeh trickier.

Olympus E-M1 vs Pentax K-5 IIs sensor size comparison

Olympus E-M1 vs Pentax K-5 IIs Screen and ViewFinder

Olympus E-M1 vs Pentax K-5 IIs Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Portrait photography with Olympus E-M1
Portrait photography with Pentax K-5 IIs
71
you can focus manually
above average flash sync (1/320s)
good megapixels (16MP)
sensor size is decent (Four Thirds)
offers face detection focusing
saves RAW formats
74
you can focus manually
decent MP (16MP)
good sensor size (APS-C)
includes face detection focusing
saves RAW formats
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Street Comparison

Olympus E-M1 Street photography information
Pentax K-5 IIs Street photography information
78
tilting screen
built in image stabilization (Sensor based 5-axis)
sensor size is decent (Four Thirds)
saves RAW formats
comes with focus by touch
environment sealing
lighter than competition (497 grams)
great ISO range (25,600)
67
image stabilization (Sensor based)
good sensor size (APS-C)
saves RAW formats
environment proof
fixed screen
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Sports Comparison

Olympus E-M1 as a Sports photography camera
Pentax K-5 IIs as a Sports photography camera
70
maximum shutter speed is high (1/8,000s)
built in image stabilization (Sensor based 5-axis)
good megapixels (16 megapixels)
sensor size is decent (Four Thirds)
offers tracking autofocus
environment sealing
comes with phase detect AF
not so great battery (350 per charge)
79
max shutter speed is good (1/8,000s)
image stabilization (Sensor based)
decent MP (16 megapixels)
good sensor size (APS-C)
includes tracking autofocus
environment proof
comes with phase detect AF
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Travel Comparison

Olympus E-M1 as a Travel photography camera
Pentax K-5 IIs as a Travel photography camera
65
lighter than competition (497 grams)
environment sealing
comes with focus by touch
good megapixels (16 megapixels)
not so great battery (350 per charge)
doesn't offer selfie friendly display
65
environment proof
decent MP (16MP)
built-in flash
screen is not selfie friendly
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Landscape Comparison

Olympus E-M1 as a Landscape photography camera
Pentax K-5 IIs as a Landscape photography camera
73
you can focus manually
switch lenses (Micro Four Thirds mount)
screen is a good size (3 inch)
built in image stabilization (Sensor based 5-axis)
good megapixels (16MP)
sensor size is decent (Four Thirds)
great ISO range (25,600)
saves RAW formats
environment sealing
not so great battery (350 CIPA)
79
you can focus manually
swap lenses (Pentax KAF2 mount)
pretty good screen size (3 inch)
image stabilization (Sensor based)
decent MP (16MP)
good sensor size (APS-C)
does not have anti-alias filter
saves RAW formats
environment proof
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Vlogging Comparison

Olympus E-M1 Vlogging details
Pentax K-5 IIs Vlogging details
36
has touchscreen
built in image stabilization (Sensor based 5-axis)
offers face detection focusing
high quality video (1920 x 1080 resolution)
does have external mic support
lighter than competition (497g)
doesn't offer selfie friendly display
33
image stabilization (Sensor based)
includes face detection focusing
high video quality (1920 x 1080 pxls)
does have external microphone support
screen is not selfie friendly
Photography Glossary

Olympus E-M1 vs Pentax K-5 IIs Specifications

Detailed spec comparison table for Olympus E-M1 and Pentax K-5 IIs
 Olympus OM-D E-M1Pentax K-5 IIs
General Information
Manufacturer Olympus Pentax
Model type Olympus OM-D E-M1 Pentax K-5 IIs
Category Pro Mirrorless Advanced DSLR
Revealed 2013-10-28 2013-06-04
Physical type SLR-style mirrorless Mid-size SLR
Sensor Information
Powered by TruePIC VII Prime II
Sensor type CMOS CMOS
Sensor size Four Thirds APS-C
Sensor measurements 17.3 x 13mm 23.7 x 15.7mm
Sensor surface area 224.9mm² 372.1mm²
Sensor resolution 16 megapixels 16 megapixels
Anti alias filter
Aspect ratio 1:1, 4:3, 3:2 and 16:9 3:2
Highest resolution 4608 x 3456 4928 x 3264
Highest native ISO 25600 12800
Highest boosted ISO - 51200
Lowest native ISO 100 100
RAW data
Lowest boosted ISO - 80
Autofocusing
Manual focusing
AF touch
Continuous AF
AF single
AF tracking
AF selectice
AF center weighted
AF multi area
Live view AF
Face detection focusing
Contract detection focusing
Phase detection focusing
Total focus points 81 11
Cross type focus points - 9
Lens
Lens support Micro Four Thirds Pentax KAF2
Number of lenses 107 151
Focal length multiplier 2.1 1.5
Screen
Type of screen Tilting Fixed Type
Screen size 3 inches 3 inches
Screen resolution 1,037 thousand dots 921 thousand dots
Selfie friendly
Liveview
Touch capability
Screen tech - TFT LCD monitor
Viewfinder Information
Viewfinder type Electronic Optical (pentaprism)
Viewfinder resolution 2,360 thousand dots -
Viewfinder coverage 100% 100%
Viewfinder magnification 0.74x 0.61x
Features
Slowest shutter speed 60s 30s
Maximum shutter speed 1/8000s 1/8000s
Continuous shooting rate 10.0 frames/s 7.0 frames/s
Shutter priority
Aperture priority
Expose Manually
Exposure compensation Yes Yes
Set WB
Image stabilization
Inbuilt flash
Flash distance no built-in flash 13.00 m (at ISO 100)
Flash settings Flash Auto, 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, High speed, Rear curtain and Wireless
Hot shoe
AE bracketing
White balance bracketing
Maximum flash synchronize 1/320s 1/180s
Exposure
Multisegment metering
Average metering
Spot metering
Partial metering
AF area metering
Center weighted metering
Video features
Supported video resolutions 1920 x 1080 (30 fps), 1280 x 720 (30 fps), 640 x 480 (30 fps) 1920 x 1080 (25 fps), 1280 x 720 (25, 30 fps), 640 x 480 (25, 30 fps)
Highest video resolution 1920x1080 1920x1080
Video data format H.264, Motion JPEG Motion JPEG
Microphone support
Headphone support
Connectivity
Wireless Built-In None
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS None Optional
Physical
Environmental sealing
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 497 gr (1.10 lbs) 760 gr (1.68 lbs)
Physical dimensions 130 x 94 x 63mm (5.1" x 3.7" x 2.5") 131 x 97 x 73mm (5.2" x 3.8" x 2.9")
DXO scores
DXO All around rating 73 82
DXO Color Depth rating 23.0 23.9
DXO Dynamic range rating 12.7 14.1
DXO Low light rating 757 1208
Other
Battery life 350 photographs 980 photographs
Battery style Battery Pack Battery Pack
Battery ID BLN-1 D-LI90
Self timer Yes (2 or 12 secs, custom) Yes ( 2 or 12 seconds)
Time lapse shooting
Storage type SD/SDHC/SDXC SD/SDHC/SDXC
Card slots 1 1
Pricing at launch $799 $749