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Olympus E-M1 III vs Panasonic GX9

Portability
67
Imaging
62
Features
96
Overall
75
Olympus OM-D E-M1 Mark III front
 
Panasonic Lumix DC-GX9 front
Portability
82
Imaging
60
Features
80
Overall
68

Olympus E-M1 III vs Panasonic GX9 Key Specs

Olympus E-M1 III
(Full Review)
  • 20MP - Four Thirds Sensor
  • 3" Fully Articulated Screen
  • ISO 200 - 25600
  • Sensor based 5-axis Image Stabilization
  • No Anti-Alias Filter
  • 1/8000s Maximum Shutter
  • 4096 x 2160 video
  • Micro Four Thirds Mount
  • 580g - 134 x 91 x 69mm
  • Announced February 2020
  • Superseded the Olympus E-M1 II
Panasonic GX9
(Full Review)
  • 20MP - Four Thirds Sensor
  • 3" Tilting Display
  • ISO 200 - 25600
  • Sensor based 5-axis Image Stabilization
  • No Anti-Alias Filter
  • 3840 x 2160 video
  • Micro Four Thirds Mount
  • 407g - 124 x 72 x 47mm
  • Revealed February 2018
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Olympus E-M1 III vs Panasonic GX9 Overview

The following is a in depth analysis of the Olympus E-M1 III versus Panasonic GX9, one is a Pro Mirrorless and the other is a Advanced Mirrorless by brands Olympus and Panasonic. The sensor resolution of the E-M1 III (20MP) and the GX9 (20MP) is fairly similar and both cameras posses the identical sensor sizes (Four Thirds).

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The E-M1 III was unveiled 2 years after the GX9 which is quite a big gap as far as technology is concerned. Both the cameras feature different body design with the Olympus E-M1 III being a SLR-style mirrorless camera and the Panasonic GX9 being a Rangefinder-style mirrorless camera.

Before we go into a in depth comparison, here is a simple view of how the E-M1 III grades against the GX9 with regard to portability, imaging, features and an overall mark.

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Reasons to pick Olympus E-M1 III over the Panasonic GX9

 E-M1 III GX9 
RevealedFebruary 2020February 2018Newer by 25 months
Display typeFully ArticulatedTiltingFully Articulating display
Selfie screen Take selfies

Reasons to pick Panasonic GX9 over the Olympus E-M1 III

 GX9 E-M1 III 
Display resolution1240k1037kClearer display (+203k dot)

Common features in the Olympus E-M1 III and Panasonic GX9

 E-M1 III GX9 
Focus manually Very accurate focus
Display size3"3"Same display dimensions
Touch display Easily navigate

Olympus E-M1 III vs Panasonic GX9 Physical Comparison

For anybody who is planning to travel with your camera regularly, you are going to need to consider its weight and measurements. The Olympus E-M1 III has exterior measurements of 134mm x 91mm x 69mm (5.3" x 3.6" x 2.7") and a weight of 580 grams (1.28 lbs) while the Panasonic GX9 has proportions of 124mm x 72mm x 47mm (4.9" x 2.8" x 1.9") having a weight of 407 grams (0.90 lbs).

Take a look at the Olympus E-M1 III versus Panasonic GX9 in the all new Camera with Lens Size Comparison Tool. Camera Size Comparison with Lenses

Remember that, the weight of an Interchangeable Lens Camera will differ depending on the lens you have chosen at that moment. Following is a front view measurements comparison of the E-M1 III against the GX9.

Olympus E-M1 III vs Panasonic GX9 size comparison

Taking into account dimensions and weight, the portability score of the E-M1 III and GX9 is 67 and 82 respectively.

Olympus E-M1 III vs Panasonic GX9 top view buttons comparison

Olympus E-M1 III vs Panasonic GX9 Sensor Comparison

Normally, it is very hard to visualise the difference between sensor dimensions only by reading technical specs. The pic below may give you a better sense of the sensor measurements in the E-M1 III and GX9.

As you have seen, both the cameras come with the identical sensor size and the same megapixels therefore you should expect similar quality of photographs although you need to factor the release date of the products into consideration. The more recent E-M1 III will have a benefit with regard to sensor technology.

Olympus E-M1 III vs Panasonic GX9 sensor size comparison

Olympus E-M1 III vs Panasonic GX9 Screen and ViewFinder

Olympus E-M1 III vs Panasonic GX9 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Olympus E-M1 III Portrait photography details
Panasonic GX9 Portrait photography details
77
manual focus
megapixel count good (20 megapixels)
sensor size is decent (Four Thirds)
has face detect focusing
exports RAW formats
76
you can focus manually
megapixel count decent (20 megapixels)
good sensor size (Four Thirds)
provides face detect autofocus
supports RAW formats
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Street Comparison

Olympus E-M1 III Street photography information
Panasonic GX9 Street photography information
78
screen articulates
has image stabilization (Sensor based 5-axis)
sensor size is decent (Four Thirds)
exports RAW formats
boasts focus via touch
weather proofing
very good high ISO (25,600)
84
tilting screen
has image stabilization (Sensor based 5-axis)
good sensor size (Four Thirds)
supports RAW formats
has focus by touch
good high ISO (25,600)
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Sports Comparison

Olympus E-M1 III as a Sports photography camera
Panasonic GX9 as a Sports photography camera
81
high shutter speed (1/8,000 seconds)
quiet shooting (1/32,000 seconds)
fast shooting (60.0 fps)
has image stabilization (Sensor based 5-axis)
megapixel count good (20MP)
sensor size is decent (Four Thirds)
has tracking focus
weather proofing
sensor has phase detect AF
72
silent mode (1/16,000 seconds)
has image stabilization (Sensor based 5-axis)
megapixel count decent (20 megapixels)
good sensor size (Four Thirds)
provides tracking focus
has phase detect autofocus
low battery pack (260 CIPA)
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Travel Comparison

Olympus E-M1 III as a Travel photography camera
Panasonic GX9 as a Travel photography camera
79
weather proofing
connects via bluetooth
boasts focus via touch
megapixel count good (20MP)
display is selfie friendly
71
supports bluetooth
has focus by touch
megapixel count decent (20MP)
built-in flash
low battery pack (260 per charge)
screen is not selfie friendly
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Landscape Comparison

Olympus E-M1 III Landscape photography factors
Panasonic GX9 Landscape photography factors
81
manual focus
switch lenses (Micro Four Thirds mount)
good sized screen (3")
has image stabilization (Sensor based 5-axis)
megapixel count good (20MP)
sensor size is decent (Four Thirds)
doesnt have low pass filter
very good high ISO (25,600)
exports RAW formats
weather proofing
has double storage slots
77
you can focus manually
change lenses (Micro Four Thirds mount)
screen is a decent size (3")
has image stabilization (Sensor based 5-axis)
megapixel count decent (20MP)
good sensor size (Four Thirds)
doesnt have anti-alias filter
good high ISO (25,600)
supports RAW formats
low battery pack (260 shots)
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Vlogging Comparison

Olympus E-M1 III Vlogging features
Panasonic GX9 Vlogging features
79
display is selfie friendly
touchscreen capability
has image stabilization (Sensor based 5-axis)
has face detect focusing
high res video (4096 x 2160 resolution)
includes mic port
35
touchscreen capability
has image stabilization (Sensor based 5-axis)
provides face detect autofocus
video resolution high (3840 x 2160 pixels)
screen is not selfie friendly
doesn't have mic jack
Photography Glossary

Olympus E-M1 III vs Panasonic GX9 Specifications

Detailed spec comparison table for Olympus E-M1 III and Panasonic GX9
 Olympus OM-D E-M1 Mark IIIPanasonic Lumix DC-GX9
General Information
Company Olympus Panasonic
Model type Olympus OM-D E-M1 Mark III Panasonic Lumix DC-GX9
Type Pro Mirrorless Advanced Mirrorless
Announced 2020-02-11 2018-02-13
Body design SLR-style mirrorless Rangefinder-style mirrorless
Sensor Information
Processor TruePic IX Venus Engine
Sensor type CMOS CMOS
Sensor size Four Thirds Four Thirds
Sensor dimensions 17.4 x 13mm 17.3 x 13mm
Sensor area 226.2mm² 224.9mm²
Sensor resolution 20MP 20MP
Anti alias filter
Aspect ratio 4:3 1:1, 4:3, 3:2 and 16:9
Peak resolution 5184 x 3888 5184 x 3888
Highest native ISO 25600 25600
Min native ISO 200 200
RAW pictures
Min enhanced ISO 64 100
Autofocusing
Focus manually
Touch to focus
Continuous autofocus
Single autofocus
Tracking autofocus
Autofocus selectice
Center weighted autofocus
Autofocus multi area
Live view autofocus
Face detection focus
Contract detection focus
Phase detection focus
Total focus points 121 49
Cross type focus points 121 -
Lens
Lens support Micro Four Thirds Micro Four Thirds
Available lenses 107 107
Crop factor 2.1 2.1
Screen
Screen type Fully Articulated Tilting
Screen diagonal 3 inches 3 inches
Screen resolution 1,037 thousand dot 1,240 thousand dot
Selfie friendly
Liveview
Touch screen
Viewfinder Information
Viewfinder type Electronic Electronic
Viewfinder resolution 2,360 thousand dot 2,760 thousand dot
Viewfinder coverage 100% 100%
Viewfinder magnification 0.74x 0.7x
Features
Min shutter speed 60 secs 60 secs
Max shutter speed 1/8000 secs 1/4000 secs
Max silent shutter speed 1/32000 secs 1/16000 secs
Continuous shutter speed 60.0 frames per second 9.0 frames per second
Shutter priority
Aperture priority
Manually set exposure
Exposure compensation Yes Yes
Change white balance
Image stabilization
Inbuilt flash
Flash distance no built-in flash 6.00 m (at ISO 200)
Flash options Redeye, Fill-in, Flash Off, Red-eye Slow sync.(1st curtain), Slow sync.(1st curtain), Slow sync.(2nd curtain), Manual Auto, auto w/redeye reduction, forced on, forced on w/redeye reduction, slow sync, slow sync w/redeye reduction, forced off
External flash
Auto exposure bracketing
White balance bracketing
Max flash sync 1/250 secs -
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 PCM3840 x 2160 @ 30p / 102 Mbps, MOV, H.264, Linear PCM3840 x 2160 @ 25p / 102 Mbps, MOV, H.264, Linear PCM3840 x 2160 @ 23.98p / 102 Mbps, MOV, H.264, Linear PCM1920 x 1080 @ 60p, MOV, H.264, Linear PCM1920 x 1080 @ 50p, MOV, H.264, Linear PCM1920 x 1080 @ 30p, MOV, H.264, Linear PCM1920 x 1080 @ 25p, MOV, H.264, Linear PCM1920 x 1080 @ 23.98p, MOV, H.264, Linear PCM -
Highest video resolution 4096x2160 3840x2160
Video data format MPEG-4, H.264 MPEG-4, AVCHD, H.264
Mic input
Headphone input
Connectivity
Wireless Built-In Built-In
Bluetooth
NFC
HDMI
USB USB 3.1 Gen 1 (5 GBit/sec) Yes
GPS None None
Physical
Environment seal
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 580g (1.28 lb) 407g (0.90 lb)
Physical dimensions 134 x 91 x 69mm (5.3" x 3.6" x 2.7") 124 x 72 x 47mm (4.9" x 2.8" x 1.9")
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 420 shots 260 shots
Type of battery Battery Pack Battery Pack
Battery ID BLH-1 -
Self timer Yes (2 or 12 secs, custom) Yes (2 or 10 secs, 3 photos over 10 secs)
Time lapse feature
Type of storage Dual SD/SDHC/SDXC slots (UHS-II on first slot) SD/SDHC/SDXC card (UHS-I supported)
Storage slots Dual One
Launch price $1,800 $1,000