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Olympus E-M5 III vs Pentax K-1

Portability
80
Imaging
62
Features
88
Overall
72
Olympus OM-D E-M5 III front
 
Pentax K-1 front
Portability
55
Imaging
76
Features
82
Overall
78

Olympus E-M5 III vs Pentax K-1 Key Specs

Olympus E-M5 III
(Full Review)
  • 20MP - Four Thirds Sensor
  • 3" Fully Articulated Display
  • ISO 200 - 25600
  • Sensor based 5-axis Image Stabilization
  • 1/8000s Max Shutter
  • 4096 x 2160 video
  • Micro Four Thirds Mount
  • 414g - 125 x 85 x 50mm
  • Launched October 2019
  • Older Model is Olympus E-M5 II
  • Newer Model is OM System OM-5
Pentax K-1
(Full Review)
  • 36MP - Full frame Sensor
  • 3.2" Fully Articulated Screen
  • ISO 100 - 204800
  • Sensor based 5-axis Image Stabilization
  • No Anti-Alias Filter
  • 1/8000s Max Shutter
  • 1920 x 1080 video
  • Pentax KAF2 Mount
  • 1010g - 137 x 110 x 86mm
  • Announced February 2016
  • Replacement is Pentax K-1 II
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Olympus E-M5 III vs Pentax K-1 Overview

Let's examine more in depth at the Olympus E-M5 III and Pentax K-1, one is a Advanced Mirrorless and the latter is a Advanced DSLR by companies Olympus and Pentax. There exists a significant gap among the resolutions of the E-M5 III (20MP) and K-1 (36MP) and the E-M5 III (Four Thirds) and K-1 (Full frame) enjoy totally different sensor sizes.

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The E-M5 III was launched 3 years after the K-1 which is a fairly sizable gap as far as camera technology is concerned. Both of the cameras come with different body type with the Olympus E-M5 III being a SLR-style mirrorless camera and the Pentax K-1 being a Mid-size SLR camera.

Before diving in to a step-by-step comparison, below is a simple synopsis of how the E-M5 III matches up vs the K-1 when considering portability, imaging, features and an overall score.

Photography Glossary
	
	

Reasons to pick Olympus E-M5 III over the Pentax K-1

 E-M5 III K-1 
AnnouncedOctober 2019February 2016More modern by 45 months
Screen resolution1040k1037kClearer screen (+3k dot)
Selfie screen Easy selfies
Touch screen Quickly navigate

Reasons to pick Pentax K-1 over the Olympus E-M5 III

 K-1 E-M5 III 
Screen dimension3.2"3"Bigger screen (+0.2")

Common features in the Olympus E-M5 III and Pentax K-1

 E-M5 III K-1 
Manually focus Dial accurate focusing
Screen typeFully ArticulatedFully ArticulatedFully Articulated screen

Olympus E-M5 III vs Pentax K-1 Physical Comparison

For anybody who is planning to carry around your camera, you will have to consider its weight and volume. The Olympus E-M5 III features outside dimensions of 125mm x 85mm x 50mm (4.9" x 3.3" x 2.0") and a weight of 414 grams (0.91 lbs) whilst the Pentax K-1 has sizing of 137mm x 110mm x 86mm (5.4" x 4.3" x 3.4") with a weight of 1010 grams (2.23 lbs).

Contrast the Olympus E-M5 III and Pentax K-1 in the latest Camera with Lens Size Comparison Tool. Camera Size Comparison with Lenses

Always remember, the weight of an Interchangeable Lens Camera will differ dependant on the lens you are working with at that moment. The following is the front view scale comparison of the E-M5 III vs the K-1.

Olympus E-M5 III vs Pentax K-1 size comparison

Taking into consideration dimensions and weight, the portability grade of the E-M5 III and K-1 is 80 and 55 respectively.

Olympus E-M5 III vs Pentax K-1 top view buttons comparison

Olympus E-M5 III vs Pentax K-1 Sensor Comparison

Normally, its tough to see the gap in sensor sizes merely by checking out technical specs. The pic here will give you a better sense of the sensor dimensions in the E-M5 III and K-1.

As you have seen, each of these cameras have got different megapixel count and different sensor sizes. The E-M5 III featuring a smaller sensor will make achieving bokeh more challenging and the Pentax K-1 will produce extra detail utilizing its extra 16 Megapixels. Higher resolution will also make it easier to crop photographs much more aggressively. The newer E-M5 III will have an advantage when it comes to sensor technology.

Olympus E-M5 III vs Pentax K-1 sensor size comparison

Olympus E-M5 III vs Pentax K-1 Screen and ViewFinder

Olympus E-M5 III vs Pentax K-1 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Olympus E-M5 III Portrait photography information
Pentax K-1 Portrait photography information
77
manual focus
decent MP (20 megapixels)
sensor size is good (Four Thirds)
includes face detection focusing
saves RAW formats
85
manual focus
MP count excellent (36 megapixels)
sensor size is big (Full frame)
supports face detect focusing
supports RAW formats
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Street Comparison

Olympus E-M5 III Street photography details
Pentax K-1 Street photography details
83
screen can move to multiple angles
built in image stabilization (Sensor based 5-axis)
sensor size is good (Four Thirds)
saves RAW formats
provides focus via touch
environment proof
good ISO range (25,600)
70
screen can move to multiple angles
image stabilization (Sensor based 5-axis)
sensor size is big (Full frame)
supports RAW formats
weather proof
great high ISO (204,800)
more heavy than competition in class (1,010g)
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Sports Comparison

Olympus E-M5 III as a Sports photography camera
Pentax K-1 as a Sports photography camera
76
high shutter speed (1/8,000 seconds)
silent shooting (1/32,000 seconds)
fast continuous shooting (30.0 frames per second)
built in image stabilization (Sensor based 5-axis)
decent MP (20MP)
sensor size is good (Four Thirds)
includes tracking autofocus
environment proof
comes with phase detect AF
not so great battery (310 CIPA)
76
great max shutter speed (1/8,000s)
image stabilization (Sensor based 5-axis)
MP count excellent (36MP)
sensor size is big (Full frame)
supports tracking focus
weather proof
supports phase detect AF
painfully slow continuous shooting (4.4 frames/s)
terrible battery pack (760 per charge)
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Travel Comparison

Olympus E-M5 III as a Travel photography camera
Pentax K-1 as a Travel photography camera
77
environment proof
supports bluetooth
provides focus via touch
decent MP (20MP)
selfie friendly screen
not so great battery (310 per charge)
53
weather proof
MP count excellent (36 megapixels)
terrible battery pack (760 per charge)
more heavy than competition in class (1,010 grams)
display is not selfie friendly
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Landscape Comparison

Olympus E-M5 III Landscape photography highlights
Pentax K-1 Landscape photography highlights
77
manual focus
change lenses (Micro Four Thirds mount)
screen is a decent size (3 inch)
built in image stabilization (Sensor based 5-axis)
decent MP (20MP)
sensor size is good (Four Thirds)
good ISO range (25,600)
saves RAW formats
environment proof
not so great battery (310 CIPA)
81
manual focus
switch lenses (Pentax KAF2 mount)
nice screen size (3.2")
image stabilization (Sensor based 5-axis)
MP count excellent (36MP)
sensor size is big (Full frame)
doesnt have low pass filter
great high ISO (204,800)
supports RAW formats
weather proof
2 card slots
terrible battery pack (760 per charge)
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Vlogging Comparison

Olympus E-M5 III Vlogging info
Pentax K-1 Vlogging info
84
selfie friendly screen
touchscreen functionality
built in image stabilization (Sensor based 5-axis)
includes face detection focusing
video res high (4096 x 2160 pxls)
does have external microphone jack
31
image stabilization (Sensor based 5-axis)
supports face detect focusing
video res high (1920 x 1080 pixels)
comes with microphone support
display is not selfie friendly
more heavy than competition in class (1,010g)
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Olympus E-M5 III vs Pentax K-1 Specifications

Detailed spec comparison table for Olympus E-M5 III and Pentax K-1
 Olympus OM-D E-M5 IIIPentax K-1
General Information
Brand Olympus Pentax
Model type Olympus OM-D E-M5 III Pentax K-1
Class Advanced Mirrorless Advanced DSLR
Launched 2019-10-17 2016-02-17
Physical type SLR-style mirrorless Mid-size SLR
Sensor Information
Processor TruePic VIII -
Sensor type MOS CMOS
Sensor size Four Thirds Full frame
Sensor measurements 17.4 x 13mm 35.9 x 24mm
Sensor surface area 226.2mm² 861.6mm²
Sensor resolution 20 megapixels 36 megapixels
Anti alias filter
Aspect ratio 1:1, 4:3, 3:2 and 16:9 3:2
Peak resolution 5184 x 3888 7360 x 4912
Highest native ISO 25600 204800
Minimum native ISO 200 100
RAW support
Minimum enhanced ISO 64 -
Autofocusing
Manual focusing
AF touch
Continuous AF
Single AF
Tracking AF
AF selectice
Center weighted AF
AF multi area
Live view AF
Face detect focusing
Contract detect focusing
Phase detect focusing
Total focus points 121 33
Cross type focus points - 25
Lens
Lens support Micro Four Thirds Pentax KAF2
Available lenses 107 151
Crop factor 2.1 1
Screen
Type of display Fully Articulated Fully Articulated
Display diagonal 3" 3.2"
Display resolution 1,040k dots 1,037k dots
Selfie friendly
Liveview
Touch operation
Viewfinder Information
Viewfinder type Electronic Optical (pentaprism)
Viewfinder resolution 2,360k dots -
Viewfinder coverage 100 percent 100 percent
Viewfinder magnification 0.68x 0.7x
Features
Min shutter speed 60 secs 30 secs
Max shutter speed 1/8000 secs 1/8000 secs
Max quiet shutter speed 1/32000 secs -
Continuous shutter rate 30.0 frames per sec 4.4 frames per sec
Shutter priority
Aperture priority
Expose Manually
Exposure compensation Yes Yes
Custom WB
Image stabilization
Integrated flash
Flash distance no built-in flash no built-in flash
Flash settings Auto, redeye, fill, off, redeye slow sync, slow sync, 2nd-curtain slow sync, manual Auto Flash Discharge, Auto Flash + Red-eye Reduction, Flash On, Flash On + Red-eye Reduction, Slow-speed Sync, Slow-speed Sync + Red-eye, P-TTL, Trailing Curtain Sync, Contrast-control-sync, High-speed sync, Wireless sync
Hot shoe
Auto exposure bracketing
White balance bracketing
Max flash synchronize 1/250 secs 1/200 secs
Exposure
Multisegment metering
Average metering
Spot metering
Partial metering
AF area metering
Center weighted metering
Video features
Supported video resolutions 4096 x 2160 @ 24p / 237 Mbps, MOV, H.264, Linear PCM 1920 x 1080 (60i, 50i, 30p, 25p, 24p), 1280 x 720 (60p, 50p)
Highest video resolution 4096x2160 1920x1080
Video file format MPEG-4, H.264 MPEG-4, H.264
Microphone support
Headphone support
Connectivity
Wireless Built-In Built-In
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS None Built-in
Physical
Environment sealing
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 414g (0.91 pounds) 1010g (2.23 pounds)
Dimensions 125 x 85 x 50mm (4.9" x 3.3" x 2.0") 137 x 110 x 86mm (5.4" x 4.3" x 3.4")
DXO scores
DXO Overall rating not tested 96
DXO Color Depth rating not tested 25.4
DXO Dynamic range rating not tested 14.6
DXO Low light rating not tested 3280
Other
Battery life 310 photographs 760 photographs
Style of battery Battery Pack Battery Pack
Battery ID BLN-1 D-LI90
Self timer Yes (2 or 10 secs, custom) Yes (2 or 12 sec, custom)
Time lapse recording
Storage type SD/SDHC/SDXC (UHS-II supported) Dual SD/SDHC/SDXC (UHS-I)
Card slots 1 2
Pricing at release $1,199 $1,499