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Olympus E-M10 III vs Sony A7R III

Portability
80
Imaging
55
Features
75
Overall
63
Olympus OM-D E-M10 Mark III front
 
Sony Alpha A7R III front
Portability
63
Imaging
78
Features
93
Overall
84

Olympus E-M10 III vs Sony A7R III Key Specs

Olympus E-M10 III
(Full Review)
  • 16MP - Four Thirds Sensor
  • 3" Tilting Screen
  • ISO 200 - 25600
  • Sensor based 5-axis Image Stabilization
  • 3840 x 2160 video
  • Micro Four Thirds Mount
  • 410g - 122 x 84 x 50mm
  • Revealed August 2017
  • Superseded the Olympus E-M10 II
  • New Model is Olympus E-M10 IV
Sony A7R III
(Full Review)
  • 42MP - Full frame Sensor
  • 3" Tilting Display
  • ISO 100 - 32000 (Increase to 102400)
  • Sensor based 5-axis Image Stabilization
  • No Anti-Alias Filter
  • 1/8000s Maximum Shutter
  • 3840 x 2160 video
  • Sony E Mount
  • 657g - 127 x 96 x 74mm
  • Revealed October 2017
  • Replaced the Sony A7R II
  • Successor is Sony A7R IV
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Olympus E-M10 III vs Sony A7R III Overview

On this page, we are contrasting the Olympus E-M10 III vs Sony A7R III, former being a Entry-Level Mirrorless while the other is a Pro Mirrorless by brands Olympus and Sony. There is a substantial difference among the resolutions of the E-M10 III (16MP) and A7R III (42MP) and the E-M10 III (Four Thirds) and A7R III (Full frame) boast different sensor measurements.

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The E-M10 III was brought out very close to the A7R III which means that they are both of a similar age. Both of the cameras have the same body design (SLR-style mirrorless).

Before diving into a thorough comparison, here is a simple synopsis of how the E-M10 III grades against the A7R III for portability, imaging, features and an overall grade.

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Reasons to pick Olympus E-M10 III over the Sony A7R III

 E-M10 III A7R III 

Reasons to pick Sony A7R III over the Olympus E-M10 III

 A7R III E-M10 III 
Display resolution1440k1040kClearer display (+400k dot)

Common features in the Olympus E-M10 III and Sony A7R III

 E-M10 III A7R III 
RevealedAugust 2017October 2017Same age
Manual focus Very accurate focusing
Display typeTiltingTiltingTilting display
Display dimensions3"3"Equal display measurements
Selfie screen Neither has selfie screen
Touch display Easily navigate

Olympus E-M10 III vs Sony A7R III Physical Comparison

When you are going to lug around your camera frequently, you have to think about its weight and volume. The Olympus E-M10 III has outside measurements of 122mm x 84mm x 50mm (4.8" x 3.3" x 2.0") and a weight of 410 grams (0.90 lbs) and the Sony A7R III has sizing of 127mm x 96mm x 74mm (5.0" x 3.8" x 2.9") and a weight of 657 grams (1.45 lbs).

Contrast the Olympus E-M10 III vs Sony A7R III in our completely new Camera & Lens Size Comparison Tool. Camera Size Comparison with Lenses

Do not forget, the weight of an ILC will differ based on the lens you are utilising at the time. Below is a front view sizing comparison of the E-M10 III versus the A7R III.

Olympus E-M10 III vs Sony A7R III size comparison

Taking into consideration size and weight, the portability score of the E-M10 III and A7R III is 80 and 63 respectively.

Olympus E-M10 III vs Sony A7R III top view buttons comparison

Olympus E-M10 III vs Sony A7R III Sensor Comparison

Often, it is very hard to visualize the gap in sensor measurements simply by seeing technical specs. The photograph underneath may give you a much better sense of the sensor sizing in the E-M10 III and A7R III.

As you have seen, both of these cameras provide different megapixels and different sensor measurements. The E-M10 III due to its smaller sensor is going to make shooting bokeh trickier and the Sony A7R III will show extra detail having its extra 26 Megapixels. Greater resolution can also make it easier to crop pics more aggressively.

Olympus E-M10 III vs Sony A7R III sensor size comparison

Olympus E-M10 III vs Sony A7R III Screen and ViewFinder

Olympus E-M10 III vs Sony A7R III Screen and Viewfinder comparison
Photography Glossary

Photography Type Scores

Portrait Comparison

Portrait photography with Olympus E-M10 III
Portrait photography with Sony A7R III
73
manual focus
good MP (16MP)
sensor size is nice (Four Thirds)
comes with face detect autofocus
saves RAW formats
86
manual focus
great MP (42 megapixels)
sensor size is large (Full frame)
offers face detect focusing
saves RAW files
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Street Comparison

Olympus E-M10 III Street photography highlights
Sony A7R III Street photography highlights
77
tilting screen
has image stabilization (Sensor based 5-axis)
sensor size is nice (Four Thirds)
saves RAW formats
comes with focus by touch
above average ISO range (25,600)
heavier than competition in class (410 grams)
79
tilting screen
image stabilization (Sensor based 5-axis)
sensor size is large (Full frame)
saves RAW files
has focus by touch
environment proofing
above average high ISO (32,000)
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Sports Comparison

Olympus E-M10 III Sports photography highlights
Sony A7R III Sports photography highlights
69
quiet shooting (1/16,000s)
has image stabilization (Sensor based 5-axis)
good MP (16 megapixels)
sensor size is nice (Four Thirds)
comes with tracking focus
doesn't have phase detect autofocus
89
maximum shutter speed is high (1/8,000 seconds)
image stabilization (Sensor based 5-axis)
great MP (42MP)
sensor size is large (Full frame)
offers tracking focus
environment proofing
better than average battery (650 shots)
has phase detect AF
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Travel Comparison

Travel photography with Olympus E-M10 III
Travel photography with Sony A7R III
67
comes with focus by touch
good MP (16 megapixels)
built-in flash
heavier than competition in class (410 grams)
doesn't have a selfie friendly display
74
better than average battery (650 shots)
environment proofing
connects via bluetooth
has focus by touch
great MP (42MP)
doesn't posses selfie friendly screen
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Landscape Comparison

Olympus E-M10 III as a Landscape photography camera
Sony A7R III as a Landscape photography camera
80
manual focus
switch lenses (Micro Four Thirds mount)
screen size is good (3 inch)
has image stabilization (Sensor based 5-axis)
good MP (16 megapixels)
sensor size is nice (Four Thirds)
above average ISO range (25,600)
saves RAW formats
87
manual focus
change lenses (Sony E mount)
screen size is decent (3")
image stabilization (Sensor based 5-axis)
great MP (42MP)
sensor size is large (Full frame)
no anti aliasing filter
above average high ISO (32,000)
saves RAW files
environment proofing
better than average battery (650 per charge)
two card slots
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Vlogging Comparison

Olympus E-M10 III as a Vlogging camera
Sony A7R III as a Vlogging camera
32
touch screen
has image stabilization (Sensor based 5-axis)
comes with face detect autofocus
video res high (3840 x 2160 pixels)
doesn't have a selfie friendly display
no mic socket
heavier than competition in class (410g)
37
touchscreen functionality
image stabilization (Sensor based 5-axis)
offers face detect focusing
high quality video (3840 x 2160 pixels)
has mic socket
doesn't posses selfie friendly screen
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Olympus E-M10 III vs Sony A7R III Specifications

Detailed spec comparison table for Olympus E-M10 III and Sony A7R III
 Olympus OM-D E-M10 Mark IIISony Alpha A7R III
General Information
Make Olympus Sony
Model Olympus OM-D E-M10 Mark III Sony Alpha A7R III
Type Entry-Level Mirrorless Pro Mirrorless
Revealed 2017-08-31 2017-10-25
Physical type SLR-style mirrorless SLR-style mirrorless
Sensor Information
Processor TruePic VIII Bionz X
Sensor type CMOS BSI-CMOS
Sensor size Four Thirds Full frame
Sensor dimensions 17.4 x 13mm 35.9 x 24mm
Sensor area 226.2mm² 861.6mm²
Sensor resolution 16MP 42MP
Anti aliasing filter
Aspect ratio 4:3 3:2 and 16:9
Maximum resolution 4608 x 3456 7952 x 5304
Maximum native ISO 25600 32000
Maximum boosted ISO - 102400
Min native ISO 200 100
RAW support
Min boosted ISO 100 50
Autofocusing
Manual focus
Touch to focus
Autofocus continuous
Autofocus single
Autofocus tracking
Autofocus selectice
Autofocus center weighted
Multi area autofocus
Live view autofocus
Face detection autofocus
Contract detection autofocus
Phase detection autofocus
Number of focus points 121 425
Lens
Lens mount Micro Four Thirds Sony E
Available lenses 107 121
Focal length multiplier 2.1 1
Screen
Screen type Tilting Tilting
Screen size 3 inch 3 inch
Resolution of screen 1,040k dots 1,440k dots
Selfie friendly
Liveview
Touch screen
Viewfinder Information
Viewfinder type Electronic Electronic
Viewfinder resolution 2,360k dots 3,686k dots
Viewfinder coverage 100 percent 100 percent
Viewfinder magnification 0.62x 0.78x
Features
Slowest shutter speed 60 secs 30 secs
Maximum shutter speed 1/4000 secs 1/8000 secs
Maximum silent shutter speed 1/16000 secs -
Continuous shooting rate 8.6 frames per second 10.0 frames per second
Shutter priority
Aperture priority
Expose Manually
Exposure compensation Yes Yes
Change white balance
Image stabilization
Built-in flash
Flash range 5.80 m (at ISO 100) no built-in flash
Flash options Auto, redeye, slow sync, 2nd-curtain slow sync, redeye slow sync, fill-in, manual, off Off, Auto, Fill-flash, Slow Sync, Rear Sync, Red-eye reduction, Wireless, Hi-speed sync
External flash
Auto exposure bracketing
White balance bracketing
Maximum flash synchronize 1/250 secs -
Exposure
Multisegment
Average
Spot
Partial
AF area
Center weighted
Video features
Video resolutions 3840 x 2160 @ 30p / 102 Mbps, MOV, H.264, Linear PCM 3840 x 2160 (30p, 25p, 24p), 1920 x 1080 (60p, 60i, 24p), 1440 x 1080 (30p), 640 x 480 (30p)
Maximum video resolution 3840x2160 3840x2160
Video data format MPEG-4, H.264 MPEG-4, AVCHD, XAVC S
Mic port
Headphone port
Connectivity
Wireless Built-In Built-In
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 3.1 Gen 1(5 GBit/sec)
GPS None None
Physical
Environmental sealing
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 410g (0.90 pounds) 657g (1.45 pounds)
Physical dimensions 122 x 84 x 50mm (4.8" x 3.3" x 2.0") 127 x 96 x 74mm (5.0" x 3.8" x 2.9")
DXO scores
DXO All around score not tested 100
DXO Color Depth score not tested 26.0
DXO Dynamic range score not tested 14.7
DXO Low light score not tested 3523
Other
Battery life 330 shots 650 shots
Style of battery Battery Pack Battery Pack
Battery model BLS-50 NP-FZ100
Self timer Yes (2 or 12 secs, custom) Yes (2 or 10 sec; continuous (3 or 5 exposures))
Time lapse recording
Type of storage SD/SDHC/SDXC (UHS-I/II supported) Two SD/SDHC/SDXC slots (UHS-II support on one)
Card slots 1 Two
Launch pricing $650 $2,800