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Olympus E-M1 III vs Panasonic GH4

Portability
67
Imaging
62
Features
96
Overall
75
Olympus OM-D E-M1 Mark III front
 
Panasonic Lumix DMC-GH4 front
Portability
66
Imaging
53
Features
88
Overall
67

Olympus E-M1 III vs Panasonic GH4 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 Max Shutter
  • 4096 x 2160 video
  • Micro Four Thirds Mount
  • 580g - 134 x 91 x 69mm
  • Introduced February 2020
  • Previous Model is Olympus E-M1 II
Panasonic GH4
(Full Review)
  • 16MP - Four Thirds Sensor
  • 3" Fully Articulated Display
  • ISO 200 - 25600
  • 1/8000s Max Shutter
  • 4096 x 2160 video
  • Micro Four Thirds Mount
  • 560g - 133 x 93 x 84mm
  • Introduced February 2014
  • Old Model is Panasonic GH3
  • Refreshed by Panasonic GH5
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Olympus E-M1 III vs Panasonic GH4 Overview

Following is a extensive review of the Olympus E-M1 III versus Panasonic GH4, both Pro Mirrorless cameras by rivals Olympus and Panasonic. There exists a huge gap among the sensor resolutions of the E-M1 III (20MP) and GH4 (16MP) but both cameras offer the same sensor size (Four Thirds).

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The E-M1 III was introduced 6 years after the GH4 which is a fairly significant gap as far as camera technology is concerned. Each of these cameras have the same body design (SLR-style mirrorless).

Before going straight to a comprehensive comparison, here is a concise summation of how the E-M1 III grades versus the GH4 with respect to portability, imaging, features and an overall score.

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Reasons to pick Olympus E-M1 III over the Panasonic GH4

 E-M1 III GH4 
IntroducedFebruary 2020February 2014More modern by 74 months
Display resolution1037k1036kSharper display (+1k dot)

Reasons to pick Panasonic GH4 over the Olympus E-M1 III

 GH4 E-M1 III 

Common features in the Olympus E-M1 III and Panasonic GH4

 E-M1 III GH4 
Focus manually Very exact focus
Display typeFully ArticulatedFully ArticulatedFully Articulated display
Display dimensions3"3"Equal display size
Selfie screen Both good for selfies
Touch display Easily navigate

Olympus E-M1 III vs Panasonic GH4 Physical Comparison

For anyone who is planning to carry around your camera, you should take into account its weight and size. The Olympus E-M1 III has got 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 GH4 has specifications of 133mm x 93mm x 84mm (5.2" x 3.7" x 3.3") with a weight of 560 grams (1.23 lbs).

Analyze the Olympus E-M1 III versus Panasonic GH4 in the latest Camera with Lens Size Comparison Tool. Camera Size Comparison with Lenses

Don't forget, the weight of an Interchangeable Lens Camera will differ based on the lens you have at that time. Below is a front view dimension comparison of the E-M1 III and the GH4.

Olympus E-M1 III vs Panasonic GH4 size comparison

Taking into consideration dimensions and weight, the portability score of the E-M1 III and GH4 is 67 and 66 respectively.

Olympus E-M1 III vs Panasonic GH4 top view buttons comparison

Olympus E-M1 III vs Panasonic GH4 Sensor Comparison

Typically, it can be tough to imagine the difference in sensor sizes only by looking through specifications. The picture here will offer you a more clear sense of the sensor sizing in the E-M1 III and GH4.

Plainly, both of these cameras have the same sensor dimensions but different MP. You should expect to see the Olympus E-M1 III to render extra detail using its extra 4 Megapixels. Greater resolution will help you crop images a bit more aggressively. The more recent E-M1 III should have a benefit in sensor technology.

Olympus E-M1 III vs Panasonic GH4 sensor size comparison

Olympus E-M1 III vs Panasonic GH4 Screen and ViewFinder

Olympus E-M1 III vs Panasonic GH4 Screen and Viewfinder comparison
Photography Glossary

Photography Type Scores

Portrait Comparison

Olympus E-M1 III Portrait photography info
Panasonic GH4 Portrait photography info
77
manual focus
good MP (20 megapixels)
sensor size is decent (Four Thirds)
comes with face detect focusing
delivers RAW files
71
you can focus manually
decent sensor resolution (16 megapixels)
decent sensor size (Four Thirds)
supports face detect focus
delivers RAW files
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Street Comparison

Olympus E-M1 III Street photography information
Panasonic GH4 Street photography information
78
screen can move to multiple angles
image stabilization (Sensor based 5-axis)
sensor size is decent (Four Thirds)
delivers RAW files
offers touch focus
weather sealing
good high ISO (25,600)
71
screen articulates
decent sensor size (Four Thirds)
delivers RAW files
supports touch to focus
environment proofing
lighter than competitors (560g)
very good high ISO (25,600)
lack of image stabilization
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Sports Comparison

Sports photography with Olympus E-M1 III
Sports photography with Panasonic GH4
81
max shutter speed is good (1/8,000 seconds)
quiet shutter (1/32,000 seconds)
fast shooting (60.0 frames/s)
image stabilization (Sensor based 5-axis)
good MP (20 megapixels)
sensor size is decent (Four Thirds)
comes with tracking focus
weather sealing
sensor has phase detect AF
62
great max shutter speed (1/8,000 seconds)
decent sensor resolution (16 megapixels)
decent sensor size (Four Thirds)
supports tracking focus
environment proofing
lack of image stabilization
lacks phase detect auto focus
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Travel Comparison

Olympus E-M1 III Travel photography information
Panasonic GH4 Travel photography information
79
weather sealing
has bluetooth
offers touch focus
good MP (20MP)
selfie friendly screen
77
lighter than competitors (560g)
environment proofing
supports touch to focus
decent sensor resolution (16 megapixels)
built-in flash
selfie friendly screen
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Landscape Comparison

Olympus E-M1 III Landscape photography features
Panasonic GH4 Landscape photography features
81
manual focus
interchangeable lenses (Micro Four Thirds mount)
screen size is good (3 inches)
image stabilization (Sensor based 5-axis)
good MP (20 megapixels)
sensor size is decent (Four Thirds)
does not have low pass filter
good high ISO (25,600)
delivers RAW files
weather sealing
has dual storage slots
72
you can focus manually
change lenses (Micro Four Thirds mount)
screen size is decent (3 inches)
decent sensor resolution (16 megapixels)
decent sensor size (Four Thirds)
very good high ISO (25,600)
delivers RAW files
environment proofing
lack of image stabilization
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Vlogging Comparison

Olympus E-M1 III as a Vlogging camera
Panasonic GH4 as a Vlogging camera
79
selfie friendly screen
built-in touchscreen
image stabilization (Sensor based 5-axis)
comes with face detect focusing
high quality video (4096 x 2160 resolution)
includes microphone jack
71
selfie friendly screen
touch screen
supports face detect focus
high res video (4096 x 2160 pixels)
comes with microphone port
lighter than competitors (560g)
lack of image stabilization
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Olympus E-M1 III vs Panasonic GH4 Specifications

Detailed spec comparison table for Olympus E-M1 III and Panasonic GH4
 Olympus OM-D E-M1 Mark IIIPanasonic Lumix DMC-GH4
General Information
Brand Olympus Panasonic
Model Olympus OM-D E-M1 Mark III Panasonic Lumix DMC-GH4
Class Pro Mirrorless Pro Mirrorless
Introduced 2020-02-11 2014-02-07
Body design SLR-style mirrorless SLR-style mirrorless
Sensor Information
Processor TruePic IX Venus Engine IX
Sensor type CMOS CMOS
Sensor size Four Thirds Four Thirds
Sensor measurements 17.4 x 13mm 17.3 x 13mm
Sensor surface area 226.2mm² 224.9mm²
Sensor resolution 20MP 16MP
Anti aliasing filter
Aspect ratio 4:3 1:1, 4:3, 3:2 and 16:9
Highest Possible resolution 5184 x 3888 4608 x 3456
Maximum native ISO 25600 25600
Minimum native ISO 200 200
RAW format
Minimum enhanced ISO 64 -
Autofocusing
Focus manually
Autofocus touch
Continuous autofocus
Single autofocus
Tracking autofocus
Autofocus selectice
Center weighted autofocus
Autofocus multi area
Live view autofocus
Face detection autofocus
Contract detection autofocus
Phase detection autofocus
Number of focus points 121 49
Cross focus points 121 -
Lens
Lens mount Micro Four Thirds Micro Four Thirds
Available lenses 107 107
Focal length multiplier 2.1 2.1
Screen
Range of screen Fully Articulated Fully Articulated
Screen sizing 3 inches 3 inches
Resolution of screen 1,037 thousand dot 1,036 thousand dot
Selfie friendly
Liveview
Touch functionality
Screen tech - OLED
Viewfinder Information
Viewfinder Electronic Electronic
Viewfinder resolution 2,360 thousand dot 2,359 thousand dot
Viewfinder coverage 100% 100%
Viewfinder magnification 0.74x 0.67x
Features
Minimum shutter speed 60 seconds 60 seconds
Fastest shutter speed 1/8000 seconds 1/8000 seconds
Fastest silent shutter speed 1/32000 seconds -
Continuous shutter speed 60.0 frames/s 12.0 frames/s
Shutter priority
Aperture priority
Manually set exposure
Exposure compensation Yes Yes
Set white balance
Image stabilization
Built-in flash
Flash range no built-in flash 17.00 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/redeye reduction, forced on, forced on/redeye reduction, slow sync, slow sync/redeye reduction, forced off
External flash
AE bracketing
WB bracketing
Fastest flash sync 1/250 seconds 1/250 seconds
Exposure
Multisegment
Average
Spot
Partial
AF area
Center weighted
Video features
Supported 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 4096 x 2160 (24p), 3840 x 2160 (24p, 25p, 30p), 1920 x 1080 (24p, 25p, 30p, 50p, 60p), 1280 x 720 (24p, 25p, 30p), 640 x 480 (25p, 30p)
Maximum video resolution 4096x2160 4096x2160
Video data format MPEG-4, H.264 MPEG-4, AVCHD
Microphone jack
Headphone jack
Connectivity
Wireless Built-In Built-In
Bluetooth
NFC
HDMI
USB USB 3.1 Gen 1 (5 GBit/sec) USB 2.0 (480 Mbit/sec)
GPS None None
Physical
Environmental seal
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 580 gr (1.28 lbs) 560 gr (1.23 lbs)
Physical dimensions 134 x 91 x 69mm (5.3" x 3.6" x 2.7") 133 x 93 x 84mm (5.2" x 3.7" x 3.3")
DXO scores
DXO Overall score not tested 74
DXO Color Depth score not tested 23.2
DXO Dynamic range score not tested 12.8
DXO Low light score not tested 791
Other
Battery life 420 shots 500 shots
Form of battery Battery Pack Battery Pack
Battery model BLH-1 DMW-BLF19
Self timer Yes (2 or 12 secs, custom) Yes (2 or 10 secs (single or three-shot))
Time lapse feature
Storage media Dual SD/SDHC/SDXC slots (UHS-II on first slot) SD/SDHC/SDXC
Storage slots Two 1
Launch pricing $1,800 $1,500