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Olympus E-M1X vs Sony A7S II

Portability
54
Imaging
61
Features
93
Overall
73
Olympus OM-D E-M1X front
 
Sony Alpha A7S II front
Portability
68
Imaging
61
Features
76
Overall
67

Olympus E-M1X vs Sony A7S II Key Specs

Olympus E-M1X
(Full Review)
  • 20MP - Four Thirds Sensor
  • 3" Fully Articulated Screen
  • ISO 200 - 25600
  • Sensor based 5-axis Image Stabilization
  • 1/8000s Maximum Shutter
  • 4096 x 2160 video
  • Micro Four Thirds Mount
  • 997g - 144 x 147 x 75mm
  • Introduced January 2019
  • Older Model is Olympus E-M1 II
Sony A7S II
(Full Review)
  • 12MP - Full frame Sensor
  • 3" Tilting Screen
  • ISO 100 - 102400 (Bump to 409600)
  • Sensor based 5-axis Image Stabilization
  • 1/8000s Max Shutter
  • 3840 x 2160 video
  • Sony E Mount
  • 627g - 127 x 96 x 60mm
  • Launched October 2015
  • Superseded the Sony A7S
  • Successor is Sony A7S III
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Olympus E-M1X vs Sony A7S II Overview

Let's look more in depth at the Olympus E-M1X and Sony A7S II, both Pro Mirrorless cameras by companies Olympus and Sony. There exists a significant gap among the sensor resolutions of the E-M1X (20MP) and A7S II (12MP) and the E-M1X (Four Thirds) and A7S II (Full frame) provide different sensor measurements.

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The E-M1X was announced 3 years after the A7S II which is a fairly sizable gap as far as camera technology is concerned. Both of the cameras feature the same body design (SLR-style mirrorless).

Before delving straight to a in depth comparison, here is a short synopsis of how the E-M1X matches up vs the A7S II in the way of portability, imaging, features and an overall mark.

Photography Glossary
	
	

Reasons to pick Olympus E-M1X over the Sony A7S II

 E-M1X A7S II 
LaunchedJanuary 2019October 2015Newer by 40 months
Screen typeFully ArticulatedTiltingFully Articulating screen
Selfie screen Take selfies
Touch friendly screen Quickly navigate

Reasons to pick Sony A7S II over the Olympus E-M1X

 A7S II E-M1X 
Screen resolution1229k1037kCrisper screen (+192k dot)

Common features in the Olympus E-M1X and Sony A7S II

 E-M1X A7S II 
Focus manually More precise focus
Screen size3"3"Same screen measurements

Olympus E-M1X vs Sony A7S II Physical Comparison

When you are looking to travel with your camera often, you will have to think about its weight and dimensions. The Olympus E-M1X has got outside measurements of 144mm x 147mm x 75mm (5.7" x 5.8" x 3.0") and a weight of 997 grams (2.20 lbs) and the Sony A7S II has dimensions of 127mm x 96mm x 60mm (5.0" x 3.8" x 2.4") with a weight of 627 grams (1.38 lbs).

Contrast the Olympus E-M1X and Sony A7S II in the new Camera and Lens Size Comparison Tool. Camera Size Comparison with Lenses

Bear in mind, the weight of an Interchangeable Lens Camera will change depending on the lens you choose at the time. Here is a front view scale comparison of the E-M1X versus the A7S II.

Olympus E-M1X vs Sony A7S II size comparison

Using dimensions and weight, the portability grade of the E-M1X and A7S II is 54 and 68 respectively.

Olympus E-M1X vs Sony A7S II top view buttons comparison

Olympus E-M1X vs Sony A7S II Sensor Comparison

More often than not, it can be tough to imagine the contrast in sensor dimensions only by checking out specs. The pic underneath should provide you a clearer sense of the sensor measurements in the E-M1X and A7S II.

As you can plainly see, both of these cameras come with different resolutions and different sensor dimensions. The E-M1X with its smaller sensor is going to make achieving shallow depth of field more difficult and the Olympus E-M1X will provide greater detail with its extra 8 Megapixels. Higher resolution will also enable you to crop photographs a good deal more aggressively. The fresher E-M1X should have a benefit in sensor technology.

Olympus E-M1X vs Sony A7S II sensor size comparison

Olympus E-M1X vs Sony A7S II Screen and ViewFinder

Olympus E-M1X vs Sony A7S II Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Olympus E-M1X Portrait photography advice
Sony A7S II Portrait photography advice
76
focusing manually
MP count good (20 megapixels)
nice sensor size (Four Thirds)
includes face detect focusing
supports RAW formats
68
has manual focus
sensor size is large (Full frame)
includes face detection focusing
saves RAW formats
megapixel count low (12 megapixels)
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Street Comparison

Olympus E-M1X Street photography advice
Sony A7S II Street photography advice
67
screen articulates fully
image stabilization (Sensor based 5-axis)
nice sensor size (Four Thirds)
supports RAW formats
includes focus by touch
environment sealing
good high ISO (25,600)
heavier than competition (997g)
78
screen tilts up and down
built in image stabilization (Sensor based 5-axis)
sensor size is large (Full frame)
saves RAW formats
environment sealing
above average high ISO (102,400)
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Sports Comparison

Olympus E-M1X Sports photography factors
Sony A7S II Sports photography factors
80
max shutter speed is good (1/8,000s)
quiet shooting (1/32,000s)
fast continuous shooting (60.0 fps)
image stabilization (Sensor based 5-axis)
MP count good (20MP)
nice sensor size (Four Thirds)
includes tracking focus
environment sealing
good battery pack (870 per charge)
has phase detect AF
58
high shutter speed (1/8,000s)
built in image stabilization (Sensor based 5-axis)
sensor size is large (Full frame)
includes tracking autofocus
environment sealing
painfully slow continuous shooting (5.0 frames per second)
megapixel count low (12MP)
bad battery (370 shots)
lacks phase detect AF
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Travel Comparison

Olympus E-M1X as a Travel photography camera
Sony A7S II as a Travel photography camera
68
good battery pack (870 CIPA)
environment sealing
connects via bluetooth
includes focus by touch
MP count good (20MP)
screen is selfie friendly
heavier than competition (997g)
49
environment sealing
bad battery (370 per charge)
megapixel count low (12MP)
doesn't have a selfie friendly screen
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Landscape Comparison

Olympus E-M1X Landscape photography info
Sony A7S II Landscape photography info
79
focusing manually
interchangeable lenses (Micro Four Thirds mount)
screen size is good (3")
image stabilization (Sensor based 5-axis)
MP count good (20MP)
nice sensor size (Four Thirds)
good high ISO (25,600)
supports RAW formats
environment sealing
good battery pack (870 shots)
has dual storage slots
71
has manual focus
change lenses (Sony E mount)
screen size is decent (3 inches)
built in image stabilization (Sensor based 5-axis)
sensor size is large (Full frame)
above average high ISO (102,400)
saves RAW formats
environment sealing
megapixel count low (12MP)
bad battery (370 CIPA)
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Vlogging Comparison

Olympus E-M1X Vlogging highlights
Sony A7S II Vlogging highlights
68
screen is selfie friendly
built-in touchscreen
image stabilization (Sensor based 5-axis)
includes face detect focusing
high quality video (4096 x 2160 resolution)
has mic jack
heavier than competition (997g)
35
built in image stabilization (Sensor based 5-axis)
includes face detection focusing
video resolution high (3840 x 2160 pxls)
has external microphone socket
doesn't have a selfie friendly screen
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Olympus E-M1X vs Sony A7S II Specifications

Detailed spec comparison table for Olympus E-M1X and Sony A7S II
 Olympus OM-D E-M1XSony Alpha A7S II
General Information
Company Olympus Sony
Model type Olympus OM-D E-M1X Sony Alpha A7S II
Class Pro Mirrorless Pro Mirrorless
Introduced 2019-01-24 2015-10-12
Physical type SLR-style mirrorless SLR-style mirrorless
Sensor Information
Chip Dual TruePic VIII Bionz X
Sensor type CMOS CMOS
Sensor size Four Thirds Full frame
Sensor measurements 17.4 x 13mm 35.6 x 23.8mm
Sensor area 226.2mm² 847.3mm²
Sensor resolution 20 megapixels 12 megapixels
Anti alias filter
Aspect ratio 4:3 3:2 and 16:9
Highest resolution 5184 x 3888 4240 x 2832
Highest native ISO 25600 102400
Highest boosted ISO - 409600
Minimum native ISO 200 100
RAW photos
Minimum boosted ISO 64 50
Autofocusing
Manual focusing
Autofocus touch
Continuous autofocus
Autofocus single
Tracking autofocus
Autofocus selectice
Center weighted autofocus
Autofocus multi area
Live view autofocus
Face detection autofocus
Contract detection autofocus
Phase detection autofocus
Total focus points 121 169
Lens
Lens support Micro Four Thirds Sony E
Amount of lenses 107 121
Focal length multiplier 2.1 1
Screen
Screen type Fully Articulated Tilting
Screen diagonal 3" 3"
Resolution of screen 1,037 thousand dots 1,229 thousand dots
Selfie friendly
Liveview
Touch display
Viewfinder Information
Viewfinder Electronic Electronic
Viewfinder resolution 2,360 thousand dots 2,359 thousand dots
Viewfinder coverage 100% 100%
Viewfinder magnification 0.74x 0.78x
Features
Slowest shutter speed 60 secs 30 secs
Maximum shutter speed 1/8000 secs 1/8000 secs
Maximum silent shutter speed 1/32000 secs -
Continuous shooting rate 60.0 frames per second 5.0 frames per second
Shutter priority
Aperture priority
Expose Manually
Exposure compensation Yes Yes
Custom white balance
Image stabilization
Inbuilt 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
Auto exposure bracketing
WB bracketing
Exposure
Multisegment
Average
Spot
Partial
AF area
Center weighted
Video features
Supported video resolutions 4096 x 2160 @ 24p / 237 Mbps, MOV, H.264, Linear PCM 4K (3840 x 2160 @ 30p/24p [60-100Mbps]), Full HD (1920 x 1080 @ 120p/60p/60i/30p/24p [50-100Mbps]), 720p (30p [16Mbps])
Highest video resolution 4096x2160 3840x2160
Video file format MPEG-4, H.264 MPEG-4, AVCHD, XAVC S
Microphone port
Headphone port
Connectivity
Wireless Built-In Built-In
Bluetooth
NFC
HDMI
USB Yes (USB-PD allows charging by laptop or external power bank) USB 2.0 (480 Mbit/sec)
GPS Built-in None
Physical
Environmental sealing
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 997 grams (2.20 pounds) 627 grams (1.38 pounds)
Physical dimensions 144 x 147 x 75mm (5.7" x 5.8" x 3.0") 127 x 96 x 60mm (5.0" x 3.8" x 2.4")
DXO scores
DXO All around rating not tested 85
DXO Color Depth rating not tested 23.6
DXO Dynamic range rating not tested 13.3
DXO Low light rating not tested 2993
Other
Battery life 870 shots 370 shots
Battery type Built-in Battery Pack
Battery ID - NP-FW50
Self timer Yes (2 or 12 secs, custom) Yes (2 or 10 sec; continuous (3 or 5 exposures))
Time lapse shooting With downloadable app
Storage type - SD/SDHC/SDXC, Memory Stick Duo/Pro Duo/Pro-HG Duo
Card slots 2 One
Launch pricing $2,999 $2,767