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Olympus OM-D E-M5 Mark III vs Panasonic Lumix DC-G9 Comparison

Storage & Battery

Olympus OM-D E-M5 Mark III

Olympus OM-D E-M5 Mark III Black Product image

Panasonic Lumix DC-G9

Panasonic Lumix DC-G9
Olympus OM-D E-M5 Mark III
Panasonic Lumix DC-G9
OM-D E-M5 Mark III
Lumix DC-G9
Refers to the year this camera was officially made available for sale.
Announcement Date
Refers to the date the manufacturer publicly announced the upcoming release and general specs of this camera.
October 17, 2019
November 08, 2017
Camera Type
Camera Size
Camera Weight

The Panasonic Lumix DC-G9 outperforms the Olympus OM-D E-M5 Mark III with a score of 70/100 compared to 65/100. Both cameras are mirrorless and were released in 2017 and 2019, respectively. They share similarities in camera type and launch prices of $1699 for the Lumix DC-G9 and $1199 for the OM-D E-M5 Mark III.

The Lumix DC-G9 excels with its higher score, offering better overall performance. However, the OM-D E-M5 Mark III has its advantages, such as being lighter at 414g compared to the Lumix DC-G9’s 658g. Additionally, the OM-D E-M5 Mark III is more compact, measuring 125 x 85 x 50mm, while the Lumix DC-G9 is larger at 137 x 97 x 92mm.

Taking these factors into account, the Panasonic Lumix DC-G9 stands out as the superior camera, but the Olympus OM-D E-M5 Mark III is a strong contender for those seeking a lighter and more compact option.

Olympus OM-D E-M5 Mark III vs Panasonic Lumix DC-G9 Overview and Optics

The Panasonic Lumix DC-G9 outperforms the Olympus OM-D E-M5 Mark III in optics, scoring 65/100 compared to the Olympus’ 60/100. Both cameras share several specifications, including 20-megapixel resolution, CMOS sensor type, Micro Four Thirds sensor size, Micro 4/3 lens mount, and image stabilization.

The Lumix DC-G9 takes the lead with a higher DXOMARK score for the sensor, 71 compared to the E-M5 Mark III’s 55. This higher score means that the G9’s sensor provides better image quality and low-light performance. Additionally, the G9 uses the Venus Engine processor, which contributes to the camera’s overall image processing capabilities.

On the other hand, the Olympus E-M5 Mark III has a faster shooting speed of 30 frames per second (fps), compared to the G9’s 20 fps. This faster shooting speed allows the E-M5 Mark III to capture fast-moving subjects and action shots more effectively. The E-M5 Mark III also utilizes the TruePic VIII processor, which aids in producing high-quality images.

Despite the Olympus E-M5 Mark III’s advantage in shooting speed, the Panasonic Lumix DC-G9 proves to be a better camera in terms of optics, due to its superior sensor performance and image processing capabilities. However, the E-M5 Mark III remains a viable option for photographers who prioritize fast shooting speed. Ultimately, the choice between these two cameras comes down to the specific needs and preferences of the photographer.

The higher the number of megapixels, the more detail the cameras sensor can capture.
20 MP
20 MP
Image Resolution
Image resolution is measured in pixels and megapixels, width by height. The higher the number, the higher its resolution.
5184 x 3888 px
5184 x 3888 px
Sensor Type
The camera sensor captures light and records the image. Sensors vary in physical size, the number of pixels, and quality.
Sensor Size
The sensor size contributes to the overall quality as well as the dynamic and tonal range a camera can capture. As a rule of thumb, the more surface there is to read the light, the more information it will capture.
17.4 x 13 mm
17.3 x 13 mm
Sensor Format
Refers to the most commonly used sensor sizes.
Micro Four Thirds
Micro Four Thirds
Frame Rate
The number of sequential frames per second the camera can write to the memory card when shooting in burst or continuous mode.
30 fps
20 fps
Lens Mount
The lens mount will tell you what type of lens range you can fit onto the camera body. Often the same camera company will have different lens ranges for different cameras.
Micro 4/3
Micro 4/3
Image Processor
The image processor in the camera converts the information collected on the sensor for digital storage on the memory card.
TruePic VIII
Venus Engine
Aspect Ratio
The aspect ratio refers to the proportional difference between width and height. The most popular aspect ratios are 3:2 and 4:3.
Minimum ISO (Native)
Refers to the lowest native (or 'base') ISO setting. Lower ISO are less sensitive to light but make a cleaner image.
Maximum ISO (Native)
Refers to the highest native (or 'base') ISO setting. Higher ISO is necessary for low-light situations or night photography, but higher ISOs often introduce grain or noise.
Minimum ISO (Expanded)
Expanded (or extended) ISO is a digitally enhanced feature available on some cameras. It allows you to push beyond the native ISO range if necessary.
Maximum ISO (Expanded)
Expanded (or extended) ISO is a digitally enhanced feature available on some cameras. It allows you to push beyond the native ISO range if necessary.
Minimum Shutter Speed
The minimum shutter speed will tell you the longest exposure your camera can take without using an external accessory.
60 s
60 s
Maximum Shutter Speed
The maximum shutter speed tells you the length inside 1 second the camera will capture. These can sometimes be extended with accessories such as extra external batteries.
1/ 8000 s
1/ 8000 s
Autofocus Points
Autofocus points show where the camera is focusing graphically as squares or brackets in Live View or on an electronic viewfinder. These points are also used for light meter readings.
In-body Stabilization
In-body Stabilization means the camera has a certain technology embedded that counteracts camera shake.
Viewfinder Type
The viewfinder type is either electronic or optical. Electronic viewfinders will have a small screen in the viewfinder. Optical viewfinders will use prisms and mirrors to look through the lens.
Viewfinder Resolution
2,360,000 dots
3,680,000 dots

Olympus OM-D E-M5 Mark III vs Panasonic Lumix DC-G9 Video Performance

The Olympus OM-D E-M5 Mark III outperforms the Panasonic Lumix DC-G9 in video capabilities with a score of 91/100 compared to the G9’s 83/100. Both cameras share 4K video resolution and built-in time-lapse functionality, but there are notable differences that contribute to the E-M5 Mark III’s superiority.

The E-M5 Mark III has a higher maximum video dimension of 4096 x 2160, while the G9’s maximum is 3840 x 2160. This difference in dimensions allows the E-M5 Mark III to produce videos with more detail and clarity. Additionally, the E-M5 Mark III boasts a maximum video frame rate of 120fps, doubling the G9’s 60fps. This higher frame rate enables the E-M5 Mark III to capture smooth slow-motion footage, which is particularly useful for sports and action videography.

On the other hand, the Panasonic Lumix DC-G9 still offers strong video capabilities despite its lower score. Its 4K video resolution and time-lapse functionality are on par with the E-M5 Mark III, making it a viable option for those who prioritize video features in their camera selection. However, its lower maximum video dimensions and frame rate may be limiting factors for some users.

Comparing the Olympus OM-D E-M5 Mark III and the Panasonic Lumix DC-G9, it is clear that the E-M5 Mark III is the superior choice for video capabilities, due to its higher maximum video dimensions and frame rate. While the G9 remains a solid option, users seeking the best video performance should opt for the E-M5 Mark III.

Indicates if this camera is capable of recording video.
Max Video Resolution
The best resolution this camera can capture video in. Modern cameras can capture up to 8K video.
Max Video Dimensions
Video resolution measured by the greatest number of pixels possible in each frame, width by height. A higher resolution means more detail or clarity in your video.
4096 x 2160 px
3840 x 2160 px
Max Video Frame Rate
How many frames per second your video will capture. Most cameras have options for multiple frame rates, depending on the resolution you shoot in. For a general video, 24p or 30p is the standard, but more serious filmmakers may need a higher frame rate for creative effect.
120 p
60 p
Time-Lapse Built In
A built in time-lapse mode will allow continuous shooting throughout a prolonged period of time to be compressed into a sped up video.
Video File Format
Different cameras can record in various video file formats. The File format you record in can impact how you edit and use the files.

Olympus OM-D E-M5 Mark III vs Panasonic Lumix DC-G9 Features and Benefits

The Olympus OM-D E-M5 Mark III and the Panasonic Lumix DC-G9 both have a feature score of 83/100, making them equal in this aspect. They share common specifications, such as a 3-inch screen size, 1040000-dot screen resolution, touchscreen capability, flip screen, and the absence of GPS. Additionally, both cameras are equipped with WIFI and Bluetooth connectivity.

The Olympus OM-D E-M5 Mark III excels in its compact size and lightweight design, making it more portable and convenient for travel photography. This advantage allows users to carry the camera effortlessly during long shooting sessions or adventures.

On the other hand, the Panasonic Lumix DC-G9 stands out with its high-speed shooting capabilities and impressive image stabilization system. These features make the G9 a strong choice for action and sports photography, where capturing fast-moving subjects is essential.

Given these differences, the Olympus OM-D E-M5 Mark III is the better choice for those who prioritize portability and convenience, while the Panasonic Lumix DC-G9 is ideal for photographers focusing on action and sports. Both cameras have their strengths, and the choice ultimately depends on the needs and preferences of the user.

Built-in Flash
A built-in flash will often be positioned right above the lens. This will automatically pop up when you activate it.
External Flash
External flashes are often connected through a hot shoe at the top of a camera, or a cable at the side of the camera.
GPS features in a camera will include location metadata to each of your photographs.
Weather Sealing
Weather sealing capabilities will give you more confidence when shooting in unfavourable conditions.
Screen Type
Touch Screen
Touchscreen allows you to change camera settings and access menus with a swipe of your finger, instead of using buttons.
Screen Size
Screen Resolution
Screen dots indicate the resolution of the LCD screen by including each sub pixel.
1,040,000 dots
1,040,000 dots
Flip Screen
A flip screen (or articulating screen) is a second screen which can flip out from the side or top of the camera. This rotating screen allows you more freedom to take photos at different angles.
Live View
Live View feature allows you to see a continuous live video of what is being seen through your lens.
Bluetooth capabilities allow you wireless control of your camera with other external devices.

Olympus OM-D E-M5 Mark III vs Panasonic Lumix DC-G9 Storage and Battery

The Panasonic Lumix DC-G9 outperforms the Olympus OM-D E-M5 Mark III in storage and battery with a score of 71 to 35. Both cameras accept SD, SDHC, and SDXC memory cards and are UHS-II compatible. Additionally, they both have USB charging capabilities.

The Lumix DC-G9 has an advantage with two memory card slots, providing more storage flexibility. It also offers a longer battery life of 400 shots, compared to the E-M5 Mark III’s 310 shots. The Olympus E-M5 Mark III, however, does not have any notable advantages in this category.

As a result, the Lumix DC-G9 proves to be the superior option in terms of storage and battery capacity, making it a more reliable choice for extended shooting sessions and professional usage.

Storage and Battery
Storage and Battery
Memory Card
SD / SDHC / SDXC (UHS-II compatible)
SD / SDHC / SDXC (UHS-II compatible)
Dual Memory Card Slots
Battery Type
Battery Life
Approximately how long this cameras battery will last measured by how many photographs you will be able to take.
310 shots
400 shots
USB Charging
Sensor scores tested by DXOMARK
Main Features
Extra Features
Construction and Durability
Handling and Ergonomics
Value for Money
Total Score

Alternatives to the Olympus OM-D E-M5 Mark III and Panasonic Lumix DC-G9

Olympus OM-D E-M5 Mark III vs Panasonic Lumix DC-G9 Comparison image.

Are you still undecided about which camera is right for you? Have a look at these popular comparisons that feature the Olympus OM-D E-M5 Mark III or the Panasonic Lumix DC-G9:

User Scores
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