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Olympus E-M5 Mark III vs Fujifilm GFX 100 Comparison

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Olympus E-M5 III

20 MP | Four Thirds (17.4 x 13 mm) MOS Sensor

Olympus E-M5 III
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Fujifilm GFX 100

102 MP | Medium format (44 x 33 mm) BSI-CMOS Sensor

Fujifilm GFX 100
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Olympus E-M5 III vs Fujifilm GFX 100 Comparison Overview

Here we are comparing E-M5 Mark III and GFX 100, two Mirrorless cameras from Olympus and Fujifilm. Olympus OM-D E-M5 III is a Advanced Mirrorless class camera and Fujifilm GFX 100 is a Pro Mirrorless class camera.

Olympus E-M5 III was introduced to the market in October 2019 and Fujifilm GFX 100 was launched in May 2019. There is only 5 months difference between E-M5 Mark III and GFX 100 so we are expecting this to be a fair comparison regarding age and technology level.

Here is a brief look at the main features of the Olympus E-M5 III and Fujifilm GFX 100 before getting into our more detailed comparison.

Olympus E-M5 III Key Specs

  • Announcement Date: 2019-10-17
  • 20MP - Four Thirds MOS Sensor
  • ISO 200 - 25600 ( expands to 64)
  • Micro Four Thirds Mount
  • Sensor-shift Image Stabilization
  • 3.00" Fully Articulated Screen
  • 2360k dot Electronic viewfinder
  • 10.0fps (30.0fps Electronic) continuous shooting
  • 4K (DCI) - 4096 x 2160 video resolution
  • 120fps High-Speed Video
  • Built-in Wireless
  • 414g. 125 x 85 x 50 mm
  • Weather-sealed Body
  • Replaced Olympus OM-D E-M5 II Compare

Fujifilm GFX 100 Key Specs

  • Announcement Date: 2019-05-23
  • 102MP - Medium format BSI-CMOS Sensor
  • ISO 100 - 12800 ( expands to 50 - 102400)
  • Fujifilm G Mount
  • Sensor-shift Image Stabilization
  • 3.20" Tilting Screen
  • 5760k dot Electronic viewfinder
  • 5.0fps continuous shooting
  • 4K (DCI) - 4096 x 2160 video resolution
  • Built-in Wireless
  • 1320g. 156 x 164 x 103 mm
  • Weather-sealed Body

Olympus E-M5 III was replaced by OM System OM-5. You may also be interested in these comparisons:
OM System OM-5 vs Olympus OM-D E-M5 III
OM System OM-5 vs Fujifilm GFX 100

Let's read on in the following sections in order to better understand in detail how the Olympus E-M5 III and Fujifilm GFX 100 compare and hopefully end up with enough arguments to decide which one is better for you.


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Olympus E-M5 III Olympus E-M5 III
See at AMAZON
Fujifilm GFX 100 Fujifilm GFX 100
See at AMAZON
Olympus E-M5 III
See at AMAZON
Fujifilm GFX 100
See at AMAZON
Reasons to choose Olympus OM-D E-M5 III over Fujifilm GFX 100
Live Composite Mode
Yes vs No Excellent help for long-exposure photography
Max ISO
25.600 vs 12.800 100% higher Max ISO
Max Mech. Shutter
1/8000s vs 1/4000s faster mechanical shutter
Max Elect. Shutter
1/32000s vs 1/16000s faster electronic shutter
Continuous Shooting
30.0fps vs 5.0fps 25 fps faster
Weight
414 g vs 1320 g 906 g lighter
Selfie & Vlogger LCD
Yes vs No Rotate LCD for taking Selfies
Focus Bracketing
Yes vs No Take multiple photos shifting focus point
Focus Stacking
Yes vs No Stacks photos in-camera to maximize depth of field
Anti Flicker
Yes vs No Reduced uneven color and exposure under flickering light
CHECK E-M5 Mark III PRICE


Reasons to choose Fujifilm GFX 100 over Olympus OM-D E-M5 III
Viewfinder Magnif.
0.86x vs 0.68x Larger Viewfinder
Sensor Resolution
102 MP vs 20 MP 409% more pixels
Number of Focus Points
425 vs 121 304 more focus points
LCD Screen Size
3.2″ vs 3 0.2 inches larger display
LCD Resolution
2.360k dots vs 1.040k dots 126% higher resolution screen
Battery Life
800 shots vs 310 shots 490 more frames with a single charge
Headphone Port
Yes vs No better video control
Viewfinder Resolution
5760k dot vs 2360k dot 144% higher resolution
Sensor Pixel Area
14.52µm2 vs 11.22µm2 29% larger pixel area
Top LCD
Yes vs No Help viewing and changing settings easily
Flash Sync Port
Yes vs No Connect off-camera flash
Tilting Viewfinder
Yes vs No Use viewfinder in different angles
Storage Slot
2 vs 1 Extra storage slot
Max Video Bit rate
400mbps vs 237mbps Higher bit rate for better video quality
USB Version
USB 3.1 Gen 1 (5 GBit/sec) vs USB 2.0 (480 Mbit/sec) Faster Data transfer from the camera
CHECK GFX 100 PRICE

Common Strengths of Olympus OM-D E-M5 III and Fujifilm GFX 100
Wireless Connection
Yes vs Yes Better connectivity
Bluetooth Connection
Yes vs Yes Connect to other devices via Bluetooth
Image Stabilization
Sensor-shift vs Sensor-shift Sharper images at longer focal lengths and long exposures
Adjustable LCD Screen
Fully Articulated vs Tilting Flexible shooting positions
External Flash Shoe
Yes vs Yes Better for flash photography
Touch Screen
Yes vs Yes Easy control of camera functions
Viewfinder
Yes (Electronic) vs Yes (Electronic) Better framing and control
RAW Support
Yes vs Yes Better image quality
Face Detection Focus
Yes vs Yes very handy for portraits
Max Resolution
20 MP vs 102 MP Bigger prints and more details
LCD Screen Resolution
1.040k dots vs 2.360k dots High resolution screens
Microphone Port
Yes vs Yes High quality audio recording option
Environmental Sealing
Yes vs Yes shoot at tough conditions
Timelapse Recording
Yes vs Yes creative shooting
AE Bracketing
Yes vs Yes Useful for tough lighting conditions and HDR
Pixel Shift High Resolution Mode
Yes (80.0MP Tripod, 50MP Handheld) vs Yes (400 MP) Increased resolution with Pixel Shifting
Smartphone Remote
Yes vs Yes Remote control your camera with a smartphone
Video Bit rates
237mbps vs 400mbps High Video quality
UHS Card Support
UHS-II vs UHS-II Read/Write in High Speeds
Webcam Function
Yes vs Yes Use your camera as a Webcam
Common Weaknesses of Olympus OM-D E-M5 III and Fujifilm GFX 100
Built-in Flash
No vs No Require external flash
Olympus E-M5 III vs Fujifilm GFX 100: Physical Specs and Body Features Comparison

Size and weight are big decision factors when you are trying to find the ideal camera for your needs. In this section, we are going to illustrate the Olympus E-M5 III and Fujifilm GFX 100 side-by-side from the front, back and top in their relative dimensions. Olympus E-M5 III has external dimensions of 125 x 85 x 50 mm (4.92 x 3.35 x 1.97″) and weighs 414 g (0.91 lb / 14.60 oz) (including batteries). Fujifilm GFX 100 has external dimensions of 156 x 164 x 103 mm (6.14 x 6.4 x 4.1″) and weighs 1320 g (2.91 lb / 46.56 oz) (including batteries).

Below you can see the front-view size comparison of the Olympus E-M5 III and the Fujifilm GFX 100. Olympus E-M5 III is clearly the smaller of the two cameras. Its body is 31mm narrower, 79mm shorter and 53mm thinner than Fujifilm GFX 100.

Olympus E-M5 III vs Fujifilm GFX 100 Camera Size Comparison - Front View
Comparison image of the Olympus E-M5 III and the Fujifilm GFX 100 Size, Weight and External Dimensions - Front View

Here is the back view size comparison of the Olympus E-M5 III and Fujifilm GFX 100.

Olympus E-M5 III vs Fujifilm GFX 100 Camera Size Comparison - Back View
Comparison image of the Olympus E-M5 III and the Fujifilm GFX 100 Size and Weight - Back View

Now lets look at the top view comparison of Olympus E-M5 III and Fujifilm GFX 100.
Olympus E-M5 III vs Fujifilm GFX 100 Camera Size Comparison - Top View
Top View Comparison image of the Olympus E-M5 III and the Fujifilm GFX 100 Size

Weight is another important factor, especially when deciding on a camera that you want to carry with you all day. Olympus E-M5 III is significantly lighter (906g ) than the Fujifilm GFX 100 which may become a big advantage especially on long walking trips.

Also keep in mind that body weight is not the only deciding factor when comparing two interchangeable camera bodies, you also have to take into account the lenses that you will be using with these bodies. Since Fujifilm GFX 100 has a Medium format sensor and Olympus E-M5 III has a smaller Four Thirds sensor, Olympus E-M5 III's lenses for a similar focal length and aperture will generally be lighter and smaller than the Fujifilm GFX 100 lenses.

Weight Comparison

Mirrorless Cameras

E-M5 Mark III
GFX 100
Min
Average
Max
Thickness Comparison

Mirrorless Cameras

E-M5 Mark III
GFX 100
Min
Average
Max

Weather Sealing

Both the E-M5 Mark III and the GFX 100 have weather sealings in their bodies, making them resistant to water and dust.

LCD Screen Size and Features

Fujifilm GFX 100's 3.20" LCD screen is slightly larger than Olympus E-M5 III's 3 screen.



Olympus E-M5 III vs Fujifilm GFX 100: Sensor Comparison

Olympus E-M5 III has a 20.0MP Four Thirds (17.4 x 13 mm ) sized MOS sensor and features TruePic VIII processor. On the other hand, Fujifilm GFX 100 has a 102.0MP Medium format (44 x 33 mm ) sized BSI-CMOS sensor and features X-Processor 4 processor.

Fujifilm GFX 100's sensor provides 82MP more than Olympus E-M5 III's sensor, which gives a significant advantage in real life. You can print your images larger or crop more freely. On the other hand, please keep in mind that Max sensor resolution is not the only determinant of resolving power. Factors such as the optical elements, low pass filter, pixel size and sensor technology also affects the final resolution of the captured image.

Below you can see the E-M5 Mark III and GFX 100 sensor size comparison.

Olympus E-M5 III vs Fujifilm GFX 100 Sensor Size Comparison
Sensor Size and Resolution Comparison image of Olympus E-M5 III and Fujifilm GFX 100 Cameras


As seen above, Fujifilm GFX 100 has a 6.4x Larger sensor area than Olympus E-M5 III. Larger sensors give photographer more control on the depth of field and blurry background compared to smaller sensor when shot in same focal length and aperture.

Olympus E-M5 III vs Fujifilm GFX 100 Comparison of Available Lenses
Which camera has more lenses?

The number of available lenses is a big deciding factor when choosing your interchangeable lens camera. When we look at the available lenses for these two cameras, we see that the Olympus E-M5 III has an advantage over the Fujifilm GFX 100. There are 123 lenses for the Olympus E-M5 III's Micro Four Thirds mount, but on the other hand, there are only 18 lenses for the Fujifilm GFX 100's Fujifilm G lens mount.

Another important factor is the availability of image stabilization. Both Olympus E-M5 III and Fujifilm GFX 100 have Sensor-based Image stabilization which means that all the lenses will be stabilized in these bodies. E-M5 Mark III's built-in Image stabilization system is effective for compensating vibration up to 6.5-stops according to CIPA standards.

Lens Type # of Olympus E-M5 III Lenses # of Fujifilm GFX 100 Lenses
Standard Zoom 18 1
Standard Prime 15 4
Wideangle Zoom 6 2
Wideangle Prime 32 4
Telephoto Zoom 21 2
Telephoto Prime 11 3
SuperZoom 8 n/a
Wideangle Fisheye Prime 5 n/a
Macro Prime 5 n/a
Perspective Control Prime n/a 2
Telephoto Mirror Prime 1 n/a
TOTAL 123 18

What types of Photography are Olympus E-M5 III and Fujifilm GFX 100 Good for?
In this section, we rank and compare Olympus E-M5 III and Fujifilm GFX 100 for five different photography types in order to make your decision process easier in case you are specifically interested in one or more of these areas.

Olympus E-M5 III for Portrait Photography

GOOD

Fujifilm GFX 100 for Portrait Photography

EXCELLENT
Large Four Thirds (17.4 x 13 mm) sensor
Very High Resolution Sensor: 20.0MP
Image Stabilization
Electronic Built-in Viewfinder
Good Ergonomics&Handling
Read the details

Check the Best Micro Four Thirds Mount Lenses for Portrait Photography
Large Medium format (44 x 33 mm) sensor
Very High Resolution Sensor: 102.0MP
Image Stabilization
Electronic Built-in Viewfinder
Good Ergonomics&Handling
Read the details

Check the Best Fujifilm G Mount Lenses for Portrait Photography

Olympus E-M5 III for Street Photography

EXCELLENT

Fujifilm GFX 100 for Street Photography

EXCELLENT
Large Four Thirds (17.4 x 13 mm) sensor
Image Stabilization
Electronic Built-in Viewfinder
Live-view
Face-Detection Focusing
Fully Articulated LCD Screen
Medium sized Body
Read the details

Check the Best Micro Four Thirds Mount Lenses for Street Photography
Large Medium format (44 x 33 mm) sensor
Image Stabilization
Electronic Built-in Viewfinder
Live-view
Face-Detection Focusing
Tilting LCD Screen
Medium sized Body
Read the details

Check the Best Fujifilm G Mount Lenses for Street Photography

Olympus E-M5 III for Sports Photography

GOOD

Fujifilm GFX 100 for Sports Photography

GOOD
Image Stabilization
Electronic Built-in Viewfinder
Good Ergonomics&Handling
Fast Continuous Shooting: 10.0fps
Anti Flicker feature
Environmental Sealings
Fast Max shutter speed: 1/8000s
121 Focus Points
Wireless Connection
Read the details

Check the Best Micro Four Thirds Mount Lenses for Sports Photography
Image Stabilization
Electronic Built-in Viewfinder
Good Ergonomics&Handling
Environmental Sealings
Fast Max shutter speed: 1/4000s
425 Focus Points
Good Battery Life: 800 shots
Wireless Connection
Average Continuous Shooting: 5.0fps
Read the details

Check the Best Fujifilm G Mount Lenses for Sports Photography

Olympus E-M5 III for Daily Photography

GOOD

Fujifilm GFX 100 for Daily Photography

GOOD
Large Four Thirds (17.4 x 13 mm) sensor
Anti Flicker feature
Environmental Sealings
Medium size Body
414g
Body Thickness 50mm
Read the details
Large Medium format (44 x 33 mm) sensor
Environmental Sealings
Medium size Body
1320g
Body Thickness 103mm
Read the details

Olympus E-M5 III for Landscape Photography

AVERAGE

Fujifilm GFX 100 for Landscape Photography

EXCELLENT
Large Four Thirds (17.4 x 13 mm) sensor
Very High Resolution Sensor: 20.0MP
Environmental Sealings
Live-view
Read the details

Check the Best Micro Four Thirds Mount Lenses for Landscape Photography
Large Medium format (44 x 33 mm) sensor
Very High Resolution Sensor: 102.0MP
Environmental Sealings
Live-view
Read the details

Check the Best Fujifilm G Mount Lenses for Landscape Photography

Olympus E-M5 III vs Fujifilm GFX 100: OUR DECISION

You may have already made your decision about which camera suits better for your needs and your budget so far, but in case you wonder how we rated Olympus E-M5 III and Fujifilm GFX 100, below you can find their scores in five different aspects. Our Decision Algorithm dynamically scores cameras using 69 different specs, current price and DxO Mark scores (where possible) in order to make a more objective and consistent comparison.

Here is a summary of how Olympus E-M5 III and Fujifilm GFX 100 scores compare:

Olympus E-M5 III
Imaging
Features
Value
Portability
Overall
Ranked #68 out of 117 in SLR-style mirrorless cameras
Ranked #114 out of 1275 in all Cameras
Fujifilm GFX 100
Imaging
Features
Value
Portability
Overall
Ranked #8 out of 117 in SLR-style mirrorless cameras
Ranked #9 out of 1275 in all Cameras

Fujifilm GFX 100 has a higher Overall Score thanks to its better image quality and more features compared to Olympus E-M5 III. On the other hand the Olympus E-M5 III beats Fujifilm GFX 100 in two significant areas: Value for Money and Compactness.
If you are a price conscious buyer and looking for a small and relatively low priced camera where you can take everywhere with you, Olympus E-M5 III is the right choice for you.
If you are after the better photographic performance with all the advanced features, definitely get the Fujifilm GFX 100

Olympus E-M5 III
Olympus E-M5 III
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Fujifilm GFX 100
Fujifilm GFX 100
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Fujifilm GFX 100 vs Olympus E-M5 III Specs Table
Detailed comparison of specifications
General Olympus OM-D E-M5 III Fujifilm GFX 100
Brand Olympus Fujifilm
Announced 2019-10-17 2019-05-23
Body Type SLR-style mirrorless SLR-style mirrorless
Sensor
Type MOS BSI-CMOS
Size Four Thirds Medium format
Dimensions 17.4 x 13 mm 44 x 33 mm
Area 226.20mm2 1452.00mm2
Megapixels 20 megapixels 102 megapixels
Max Resolution 5184 x 3888 11648 x 8736
Max Native Light sensitivity 25,600 ISO 12,800 ISO
Max Boosted Light Sensitivity - 102400 ISO
Min Native Light sensitivity 200 ISO 100 ISO
Min Boosted Light Sensitivity 64 ISO 50 ISO
RAW Support
Autofocus
AF Touch
AF Continuous
AF Single
AF Tracking
AF Selective
AF Center
AF Multi Area
AF Live View
AF Face Detection
AF Contrast Detection
AF Phase Detection
Number of Focus Points 121 425
Lens
Manual Focus
Lens Mount Micro Four Thirds Fujifilm G
Number of Available Lenses 123 18
Screen
Type Fully Articulated Tilting
Size 3.00" 3.20"
Resolution 1,040k dots 2,360k dots
Touch Screen
Viewfinder
Viewfinder Electronic Electronic
Viewfinder Resolution 2,360k dots 5,760k dots
Viewfinder Coverage 100% 100%
Viewfinder Magnification 0.68x 0.86x
Photography Features
Max Mechanical Shutter 1/8000s 1/4000s
Max Electronic Shutter 1/32000s 1/16000s
Shutter Priority
Aperture Priority
Manual Exposure Mode
Custom White Balance
Built-in Image Stabilization Sensor-shift Sensor-shift
Built-in Flash
Max Flash Sync 1/250s 1/125s
External Flash
Continuous Shooting 10.0 fps 5.0 fps
Multi-Segment Metering
Average Metering
Spot Metering
Partial Metering
AF-Area Metering
Center Weighted Metering
AE Bracketing
WB Bracketing
Video Features
Max Video Resolution 4096 x 2160 4096 x 2160
Video Formats MPEG-4, H.264 MPEG-4, H.264, H.265
Microphone Port
Headphone Port
Connectivity
Wireless Connectivity Built-In Built-In
HDMI
Physical
Environmental Sealing
Weight 414g 1320g
Dimensions 125 x 85 x 50mm 156 x 164 x 103mm
Battery Life 310 shots 800 shots
Other Features
Timelapse Recording
GPS None None
DxO Sensor Scores
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