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Olympus E-M1X vs Sony A7 III

Portability
54
Imaging
61
Features
93
Overall
73
Olympus OM-D E-M1X front
 
Sony Alpha A7 III front
Portability
63
Imaging
74
Features
92
Overall
81

Olympus E-M1X vs Sony A7 III Key Specs

Olympus E-M1X
(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
  • 997g - 144 x 147 x 75mm
  • Launched January 2019
  • Superseded the Olympus E-M1 II
Sony A7 III
(Full Review)
  • 24MP - Full frame Sensor
  • 3" Tilting Display
  • ISO 100 - 51200 (Bump to 204800)
  • Sensor based 5-axis Image Stabilization
  • 1/8000s Max Shutter
  • 3840 x 2160 video
  • Sony E Mount
  • 650g - 127 x 96 x 74mm
  • Announced February 2018
  • Previous Model is Sony A7 II
  • Updated by Sony A7 IV
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Olympus E-M1X vs Sony A7 III Overview

The following is a complete assessment of the Olympus E-M1X versus Sony A7 III, both Pro Mirrorless cameras by rivals Olympus and Sony. The image resolution of the E-M1X (20MP) and the A7 III (24MP) is very close but the E-M1X (Four Thirds) and A7 III (Full frame) possess different sensor sizes.

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The E-M1X was launched 12 months after the A7 III and they are of a similar generation. The two cameras come with the identical body type (SLR-style mirrorless).

Before delving straight into a thorough comparison, below is a brief introduction of how the E-M1X scores against the A7 III when considering portability, imaging, features and an overall mark.

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Reasons to pick Olympus E-M1X over the Sony A7 III

 E-M1X A7 III 
AnnouncedJanuary 2019February 2018Newer by 12 months
Display typeFully ArticulatedTiltingFully Articulating display
Display resolution1037k922kSharper display (+115k dot)
Selfie screen Easy selfies

Reasons to pick Sony A7 III over the Olympus E-M1X

 A7 III E-M1X 

Common features in the Olympus E-M1X and Sony A7 III

 E-M1X A7 III 
Focus manually Very precise focusing
Display dimension3"3"Identical display dimensions
Touch display Easily navigate

Olympus E-M1X vs Sony A7 III Physical Comparison

For anybody who is planning to travel with your camera regularly, you need to take into account its weight and proportions. The Olympus E-M1X features physical dimensions of 144mm x 147mm x 75mm (5.7" x 5.8" x 3.0") having a weight of 997 grams (2.20 lbs) and the Sony A7 III has measurements of 127mm x 96mm x 74mm (5.0" x 3.8" x 2.9") with a weight of 650 grams (1.43 lbs).

Contrast the Olympus E-M1X versus Sony A7 III in the latest Camera with Lens Size Comparison Tool. Camera Size Comparison with Lenses

Always remember, the weight of an Interchangeable Lens Camera will change based on the lens you are employing at the time. Following is the front view size comparison of the E-M1X and the A7 III.

Olympus E-M1X vs Sony A7 III size comparison

Considering dimensions and weight, the portability rating of the E-M1X and A7 III is 54 and 63 respectively.

Olympus E-M1X vs Sony A7 III top view buttons comparison

Olympus E-M1X vs Sony A7 III Sensor Comparison

Typically, it's hard to visualize the gap in sensor dimensions merely by looking through technical specs. The picture underneath will provide you a greater sense of the sensor sizes in the E-M1X and A7 III.

As you have seen, the 2 cameras posses different megapixels and different sensor dimensions. The E-M1X due to its smaller sensor is going to make achieving shallower depth of field tougher and the Sony A7 III will result in more detail utilizing its extra 4 Megapixels. Greater resolution can also let you crop images somewhat more aggressively. The younger E-M1X should have a benefit in sensor tech.

Olympus E-M1X vs Sony A7 III sensor size comparison

Olympus E-M1X vs Sony A7 III Screen and ViewFinder

Olympus E-M1X vs Sony A7 III Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Olympus E-M1X Portrait photography info
Sony A7 III Portrait photography info
76
manual focus
decent MP (20 megapixels)
sensor size is decent (Four Thirds)
includes face detection focusing
exports RAW formats
84
focusing manually
good megapixels (24 megapixels)
sensor size is large (Full frame)
includes face detect focusing
saves RAW formats
Photography Glossary

Street Comparison

Olympus E-M1X Street photography details
Sony A7 III Street photography details
67
screen articulates fully
image stabilization (Sensor based 5-axis)
sensor size is decent (Four Thirds)
exports RAW formats
provides focus by touch
weather proofing
good ISO range (25,600)
more heavy than competition in class (997 grams)
78
tilting screen
built in image stabilization (Sensor based 5-axis)
sensor size is large (Full frame)
saves RAW formats
features focus by touch
weather sealing
good high ISO (51,200)
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Sports Comparison

Olympus E-M1X as a Sports photography camera
Sony A7 III as a Sports photography camera
80
high shutter speed (1/8,000 seconds)
silent shooting (1/32,000 seconds)
high fps (60.0 frames/s)
image stabilization (Sensor based 5-axis)
decent MP (20 megapixels)
sensor size is decent (Four Thirds)
includes tracking autofocus
weather proofing
great battery power (870 shots)
comes with phase detect AF
87
great max shutter speed (1/8,000s)
built in image stabilization (Sensor based 5-axis)
good megapixels (24MP)
sensor size is large (Full frame)
includes tracking focus
weather sealing
better than average battery (610 per charge)
supports phase detect AF
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Travel Comparison

Olympus E-M1X Travel photography information
Sony A7 III Travel photography information
68
great battery power (870 shots)
weather proofing
supports bluetooth
provides focus by touch
decent MP (20MP)
display is selfie friendly
more heavy than competition in class (997g)
73
better than average battery (610 per charge)
weather sealing
has bluetooth
features focus by touch
good megapixels (24MP)
doesn't feature selfie friendly display
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Landscape Comparison

Olympus E-M1X Landscape photography information
Sony A7 III Landscape photography information
79
manual focus
change lenses (Micro Four Thirds mount)
nice screen size (3 inches)
image stabilization (Sensor based 5-axis)
decent MP (20MP)
sensor size is decent (Four Thirds)
good ISO range (25,600)
exports RAW formats
weather proofing
great battery power (870 per charge)
has dual storage slots
85
focusing manually
switch lenses (Sony E mount)
screen size is good (3")
built in image stabilization (Sensor based 5-axis)
good megapixels (24MP)
sensor size is large (Full frame)
good high ISO (51,200)
saves RAW formats
weather sealing
better than average battery (610 per charge)
has dual storage slots
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Vlogging Comparison

Olympus E-M1X Vlogging details
Sony A7 III Vlogging details
68
display is selfie friendly
touchscreen
image stabilization (Sensor based 5-axis)
includes face detection focusing
video resolution high (4096 x 2160 pixels)
does have external microphone jack
more heavy than competition in class (997 grams)
36
touchscreen capability
built in image stabilization (Sensor based 5-axis)
includes face detect focusing
high res video (3840 x 2160 pxls)
comes with mic jack
doesn't feature selfie friendly display
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Olympus E-M1X vs Sony A7 III Specifications

Detailed spec comparison table for Olympus E-M1X and Sony A7 III
 Olympus OM-D E-M1XSony Alpha A7 III
General Information
Brand Name Olympus Sony
Model type Olympus OM-D E-M1X Sony Alpha A7 III
Type Pro Mirrorless Pro Mirrorless
Launched 2019-01-24 2018-02-27
Body design SLR-style mirrorless SLR-style mirrorless
Sensor Information
Processor Dual TruePic VIII Bionz X
Sensor type CMOS BSI-CMOS
Sensor size Four Thirds Full frame
Sensor dimensions 17.4 x 13mm 35.8 x 23.8mm
Sensor area 226.2mm² 852.0mm²
Sensor resolution 20MP 24MP
Anti alias filter
Aspect ratio 4:3 3:2 and 16:9
Full resolution 5184 x 3888 6000 x 4000
Max native ISO 25600 51200
Max boosted ISO - 204800
Minimum native ISO 200 100
RAW files
Minimum boosted ISO 64 50
Autofocusing
Focus manually
Touch to focus
Continuous AF
Single AF
Tracking AF
Selective AF
Center weighted AF
AF multi area
AF live view
Face detect focusing
Contract detect focusing
Phase detect focusing
Total focus points 121 693
Lens
Lens mount type Micro Four Thirds Sony E
Available lenses 107 121
Crop factor 2.1 1
Screen
Range of display Fully Articulated Tilting
Display sizing 3" 3"
Display resolution 1,037 thousand dot 922 thousand dot
Selfie friendly
Liveview
Touch friendly
Viewfinder Information
Viewfinder type Electronic Electronic
Viewfinder resolution 2,360 thousand dot 2,359 thousand dot
Viewfinder coverage 100% 100%
Viewfinder magnification 0.74x 0.78x
Features
Slowest shutter speed 60 seconds 30 seconds
Maximum shutter speed 1/8000 seconds 1/8000 seconds
Maximum quiet shutter speed 1/32000 seconds -
Continuous shooting speed 60.0 frames/s 10.0 frames/s
Shutter priority
Aperture priority
Manually set exposure
Exposure compensation Yes Yes
Custom WB
Image stabilization
Integrated flash
Flash distance no built-in flash no built-in flash
Flash settings Redeye, Fill-in, Flash Off, Red-eye Slow sync (1st curtain), Slow sync.(1st curtain), Slow sync (2nd curtain), manual no built-in flash
External flash
AEB
White balance bracketing
Exposure
Multisegment
Average
Spot
Partial
AF area
Center weighted
Video features
Video resolutions 4096 x 2160 @ 24p / 237 Mbps, MOV, H.264, Linear PCM 3840 x 2160 (30p, 24p) 1920 x 1080 (120p, 60p, 60i, 24p), 1440 x 1080 (30p), 640 x 480 (30p)
Max video resolution 4096x2160 3840x2160
Video file format MPEG-4, H.264 MPEG-4, AVCHD, XAVC S, H.264
Mic input
Headphone input
Connectivity
Wireless Built-In Built-In
Bluetooth
NFC
HDMI
USB Yes (USB-PD allows charging by laptop or external power bank) USB 3.1 Gen 1 (5 GBit/sec)
GPS Built-in None
Physical
Environment seal
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 997 gr (2.20 lbs) 650 gr (1.43 lbs)
Dimensions 144 x 147 x 75mm (5.7" x 5.8" x 3.0") 127 x 96 x 74mm (5.0" x 3.8" x 2.9")
DXO scores
DXO All around rating not tested 96
DXO Color Depth rating not tested 25.0
DXO Dynamic range rating not tested 14.7
DXO Low light rating not tested 3730
Other
Battery life 870 shots 610 shots
Type of battery Built-in Battery Pack
Battery ID - 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, Memory Stick Duo/Pro Duo/Pro-HG Duo
Storage slots 2 2
Retail pricing $2,999 $1,998