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Olympus E-M1X vs Sony a1

Portability
54
Imaging
61
Features
93
Overall
73
Olympus OM-D E-M1X front
 
Sony Alpha a1 front
Portability
61
Imaging
81
Features
93
Overall
85

Olympus E-M1X vs Sony a1 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
  • Succeeded the Olympus E-M1 II
Sony a1
(Full Review)
  • 50MP - Full frame Sensor
  • 3" Tilting Display
  • ISO 100 - 32000 (Bump to 102400)
  • Sensor based 5-axis Image Stabilization
  • 1/8000s Maximum Shutter
  • 7680 x 4320 video
  • Sony E Mount
  • 737g - 129 x 97 x 70mm
  • Released January 2021
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Olympus E-M1X vs Sony a1 Overview

Lets look a little more closely at the Olympus E-M1X versus Sony a1, both Pro Mirrorless digital cameras by competitors Olympus and Sony. There is a substantial difference between the image resolutions of the E-M1X (20MP) and a1 (50MP) and the E-M1X (Four Thirds) and a1 (Full frame) boast totally different sensor size.

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The E-M1X was brought out 24 months earlier than the a1 making them a generation away from each other. Both of the cameras have the same body design (SLR-style mirrorless).

Before diving straight to a step-by-step comparison, here is a quick summary of how the E-M1X matches up against the a1 with respect to portability, imaging, features and an overall mark.

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Reasons to pick Olympus E-M1X over the Sony a1

 E-M1X a1 
Display typeFully ArticulatedTiltingFully Articulating display
Selfie screen Take selfies

Reasons to pick Sony a1 over the Olympus E-M1X

 a1 E-M1X 
ReleasedJanuary 2021January 2019Newer by 24 months
Display resolution1440k1037kClearer display (+403k dot)

Common features in the Olympus E-M1X and Sony a1

 E-M1X a1 
Manually focus Dial exact focusing
Display dimensions3"3"Equal display size
Touch friendly display Easily navigate

Olympus E-M1X vs Sony a1 Physical Comparison

For anybody who is going to travel with your camera regularly, you will need to factor in its weight and size. The Olympus E-M1X comes with outside measurements of 144mm x 147mm x 75mm (5.7" x 5.8" x 3.0") accompanied by a weight of 997 grams (2.20 lbs) while the Sony a1 has specifications of 129mm x 97mm x 70mm (5.1" x 3.8" x 2.8") along with a weight of 737 grams (1.62 lbs).

Contrast the Olympus E-M1X versus Sony a1 in our brand new Camera plus Lens Size Comparison Tool. Camera Size Comparison with Lenses

Take into account, the weight of an ILC will vary dependant on the lens you select during that time. The following is a front view scale comparison of the E-M1X vs the a1.

Olympus E-M1X vs Sony a1 size comparison

Factoring in size and weight, the portability grade of the E-M1X and a1 is 54 and 61 respectively.

Olympus E-M1X vs Sony a1 top view buttons comparison

Olympus E-M1X vs Sony a1 Sensor Comparison

Usually, it is hard to see the difference between sensor dimensions just by reviewing specs. The image here will help give you a stronger sense of the sensor measurements in the E-M1X and a1.

As you can plainly see, the two cameras provide different resolutions and different sensor dimensions. The E-M1X due to its tinier sensor will make shooting shallow DOF more difficult and the Sony a1 will offer greater detail having its extra 30MP. Greater resolution can also allow you to crop pics more aggressively. The more aged E-M1X is going to be disadvantaged with regard to sensor innovation.

Olympus E-M1X vs Sony a1 sensor size comparison

Olympus E-M1X vs Sony a1 Screen and ViewFinder

Olympus E-M1X vs Sony a1 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Olympus E-M1X Portrait photography factors
Sony a1 Portrait photography factors
76
you can focus manually
good megapixels (20MP)
decent sensor size (Four Thirds)
comes with face detect autofocus
supports RAW formats
88
focusing manually
above average flash sync (1/400 seconds)
high MP (50MP)
great sensor size (Full frame)
includes face detection autofocus
delivers RAW formats
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Street Comparison

Olympus E-M1X Street photography info
Sony a1 Street photography info
67
screen articulates
has image stabilization (Sensor based 5-axis)
decent sensor size (Four Thirds)
supports RAW formats
comes with touch focus
weather sealing
great high ISO (25,600)
more heavy than average (997g)
79
tilting screen
image stabilization (Sensor based 5-axis)
great sensor size (Full frame)
delivers RAW formats
offers focus by touch
weather proofing
good high ISO (32,000)
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Sports Comparison

Olympus E-M1X Sports photography factors
Sony a1 Sports photography factors
80
great max shutter speed (1/8,000s)
quiet shooting (1/32,000s)
high max fps (60.0 fps)
has image stabilization (Sensor based 5-axis)
good megapixels (20 megapixels)
decent sensor size (Four Thirds)
comes with tracking focus
weather sealing
great battery pack (870 shots)
comes with phase detect autofocus
90
max shutter speed is good (1/8,000 seconds)
quiet mode (1/32,000 seconds)
high max frames per second (30.0 fps)
image stabilization (Sensor based 5-axis)
high MP (50MP)
great sensor size (Full frame)
includes tracking autofocus
weather proofing
great battery life (530 CIPA)
sensor has phase detect autofocus
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Travel Comparison

Olympus E-M1X as a Travel photography camera
Sony a1 as a Travel photography camera
68
great battery pack (870 CIPA)
weather sealing
has bluetooth
comes with touch focus
good megapixels (20MP)
display is selfie friendly
more heavy than average (997 grams)
73
great battery life (530 CIPA)
weather proofing
connects via bluetooth
offers focus by touch
high MP (50 megapixels)
does not have selfie friendly display
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Landscape Comparison

Olympus E-M1X Landscape photography highlights
Sony a1 Landscape photography highlights
79
you can focus manually
switch lenses (Micro Four Thirds mount)
nice screen size (3 inches)
has image stabilization (Sensor based 5-axis)
good megapixels (20MP)
decent sensor size (Four Thirds)
great high ISO (25,600)
supports RAW formats
weather sealing
great battery pack (870 per charge)
2 card slots
88
focusing manually
switch lenses (Sony E mount)
pretty good screen size (3")
image stabilization (Sensor based 5-axis)
high MP (50MP)
great sensor size (Full frame)
good high ISO (32,000)
delivers RAW formats
weather proofing
great battery life (530 CIPA)
has dual storage slots
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Vlogging Comparison

Olympus E-M1X as a Vlogging camera
Sony a1 as a Vlogging camera
68
display is selfie friendly
touchscreen functionality
has image stabilization (Sensor based 5-axis)
comes with face detect autofocus
high res video (4096 x 2160 pxls)
does have microphone support
more heavy than average (997 grams)
36
has touchscreen
image stabilization (Sensor based 5-axis)
includes face detection autofocus
video resolution high (7680 x 4320 pixels)
includes external mic jack
does not have selfie friendly display
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Olympus E-M1X vs Sony a1 Specifications

Detailed spec comparison table for Olympus E-M1X and Sony a1
 Olympus OM-D E-M1XSony Alpha a1
General Information
Brand Name Olympus Sony
Model type Olympus OM-D E-M1X Sony Alpha a1
Class Pro Mirrorless Pro Mirrorless
Launched 2019-01-24 2021-01-26
Body design SLR-style mirrorless SLR-style mirrorless
Sensor Information
Powered by Dual TruePic VIII -
Sensor type CMOS BSI-CMOS
Sensor size Four Thirds Full frame
Sensor dimensions 17.4 x 13mm 35.9 x 24mm
Sensor surface area 226.2mm² 861.6mm²
Sensor resolution 20MP 50MP
Anti alias filter
Aspect ratio 4:3 1:1, 4:3, 3:2 and 16:9
Max resolution 5184 x 3888 8640 x 5760
Max native ISO 25600 32000
Max enhanced ISO - 102400
Min native ISO 200 100
RAW format
Min enhanced ISO 64 50
Autofocusing
Focus manually
Touch focus
Continuous autofocus
Single autofocus
Autofocus tracking
Autofocus selectice
Autofocus center weighted
Autofocus multi area
Live view autofocus
Face detect autofocus
Contract detect autofocus
Phase detect autofocus
Total focus points 121 759
Lens
Lens support Micro Four Thirds Sony E
Number of lenses 107 133
Crop factor 2.1 1
Screen
Range of display Fully Articulated Tilting
Display diagonal 3 inch 3 inch
Resolution of display 1,037 thousand dot 1,440 thousand dot
Selfie friendly
Liveview
Touch friendly
Viewfinder Information
Viewfinder Electronic Electronic
Viewfinder resolution 2,360 thousand dot 9,437 thousand dot
Viewfinder coverage 100% 100%
Viewfinder magnification 0.74x 0.9x
Features
Minimum shutter speed 60 seconds 30 seconds
Fastest shutter speed 1/8000 seconds 1/8000 seconds
Fastest quiet shutter speed 1/32000 seconds 1/32000 seconds
Continuous shutter speed 60.0 frames/s 30.0 frames/s
Shutter priority
Aperture priority
Expose Manually
Exposure compensation Yes Yes
Set 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 Flash off, Autoflash, Fill-flash, Slow Sync., Rear Sync., Red-eye reduction, Wireless, Hi-speed sync
External flash
Auto exposure bracketing
White balance bracketing
Fastest flash sync - 1/400 seconds
Exposure
Multisegment exposure
Average exposure
Spot exposure
Partial exposure
AF area exposure
Center weighted exposure
Video features
Video resolutions 4096 x 2160 @ 24p / 237 Mbps, MOV, H.264, Linear PCM 7680x4320 (30p, 25p, 23.98)
Max video resolution 4096x2160 7680x4320
Video data format MPEG-4, H.264 XAVC S, XAVC HS, H.264, H.265
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) Yes
GPS Built-in None
Physical
Environment seal
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 997 gr (2.20 lbs) 737 gr (1.62 lbs)
Physical dimensions 144 x 147 x 75mm (5.7" x 5.8" x 3.0") 129 x 97 x 70mm (5.1" x 3.8" x 2.8")
DXO scores
DXO Overall rating not tested not tested
DXO Color Depth rating not tested not tested
DXO Dynamic range rating not tested not tested
DXO Low light rating not tested not tested
Other
Battery life 870 pictures 530 pictures
Battery format Built-in Battery Pack
Battery ID - NP-FZ100
Self timer Yes (2 or 12 secs, custom) Yes
Time lapse feature
Type of storage - Dual SD/CFexpress Type A slots (UHS-II supported)
Storage slots Dual Dual
Pricing at release $2,999 $6,498