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Olympus OM-D E-M5 Mark III vs OM System OM-1 Comparison

Storage & Battery

Olympus OM-D E-M5 Mark III

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

Olympus OM System OM-1

Olympus OM System OM-1 Product image
Olympus OM-D E-M5 Mark III
Olympus OM System OM-1
OM-D E-M5 Mark III
OM System OM-1
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
February 15, 2022
Camera Type
Camera Size
Camera Weight

The Olympus OM System OM-1 outperforms the Olympus OM-D E-M5 Mark III with a score of 73/100, compared to the latter’s 65/100. Both cameras are mirrorless, were announced in the 2010s, and share similarities in size and weight. The OM-1 is larger at 135 x 92 x 73mm and heavier at 599g, while the E-M5 Mark III measures 125 x 85 x 50mm and weighs 414g.

The OM-1’s higher score reflects its superior performance and features. However, the E-M5 Mark III has its advantages, such as its lower launch price of $1199 compared to the OM-1’s $2199. This makes the E-M5 Mark III a more budget-friendly option for those seeking a capable mirrorless camera.

Taking into account the scores and specifications, the OM-1 proves to be the better camera. However, potential buyers should also consider their budget and specific needs before making a decision.

Olympus OM-D E-M5 Mark III vs OM System OM-1 Overview and Optics

The Olympus OM System OM-1 surpasses the Olympus OM-D E-M5 Mark III in optics with a 9-point difference, scoring 69/100 compared to 60/100. Both cameras share several key specifications, including 20-megapixel resolution, Micro Four Thirds sensor size, Micro 4/3 lens mount, and built-in image stabilization.

The OM-1’s superiority in optics is primarily due to its advanced Stacked CMOS sensor and powerful TruePic X Dual Quad Core Processor. This combination results in a significantly higher DXOMARK sensor score of 85, compared to the E-M5 Mark III’s 55. The OM-1’s enhanced sensor technology allows for better image quality and low-light performance.

Additionally, the E-M5 Mark III has a faster shooting speed of 30 frames per second, which is triple the OM-1’s 10 frames per second. This advantage enables the E-M5 Mark III to capture fast-moving subjects and action shots more effectively.

However, the OM-1’s slower shooting speed should not be disregarded entirely, as it may still be adequate for many photography scenarios. Moreover, the OM-1’s higher overall optics score indicates that its superior sensor quality and processing power outweigh its lower shooting speed in terms of overall image quality.

In the end, the Olympus OM System OM-1 emerges as the better option for photographers prioritizing image quality and low-light performance. The Olympus OM-D E-M5 Mark III, on the other hand, is the better choice for those needing a faster shooting speed for action photography. Both cameras offer strong features, and the final decision should be based on individual preferences and requirements.

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.
Stacked CMOS
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
13 x 17.4 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
10 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
TruePic X Dual Quad Core Processor
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
5,760,000 dots

Olympus OM-D E-M5 Mark III vs OM System OM-1 Video Performance

The Olympus OM-D E-M5 Mark III outperforms the Olympus OM System OM-1 in video capabilities, scoring 91/100 compared to the OM-1’s score of 83/100. Both cameras share some common specifications, such as a maximum video resolution of 4K and dimensions of 4096 x 2160. Additionally, both cameras have built-in time-lapse functionality.

The E-M5 Mark III’s higher score is due to its superior video frame rate, which reaches up to 120fps, allowing for smoother slow-motion footage. This feature gives the E-M5 Mark III an edge over the OM-1, which has a maximum video frame rate of 60fps. The faster frame rate in the E-M5 Mark III provides more versatility for capturing fast-moving subjects and creating professional-looking videos.

On the other hand, the OM-1 does not surpass the E-M5 Mark III in any video-related specifications. Its lower score reflects its limitation in video frame rate compared to the E-M5 Mark III. The OM-1 still offers solid video performance, but the E-M5 Mark III is the clear winner in this comparison.

Both cameras are excellent choices for photographers and videographers, but the Olympus OM-D E-M5 Mark III offers superior video capabilities, particularly in terms of maximum video frame rate. The OM-1 is a strong contender, but those 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
4096 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 OM System OM-1 Features and Benefits

The Olympus OM-D E-M5 Mark III and the Olympus OM System OM-1 both have a feature score of 83/100. These cameras share several specifications, including a 3-inch screen size, 1040000-dot screen resolution, touchscreen, flip screen, and the absence of GPS. They also both support WIFI and Bluetooth connectivity.

The Olympus OM-D E-M5 Mark III is better in certain aspects. Specifically, it excels in its compact and lightweight design, making it a more portable option for photographers. Additionally, the E-M5 Mark III features a high-speed autofocus system and 5-axis image stabilization, which ensures sharp and blur-free images even in challenging shooting conditions.

On the other hand, the Olympus OM System OM-1 stands out for its retro design that pays homage to the original OM-1 film camera. This aesthetic appeals to photographers who appreciate a classic look. Furthermore, the OM-1 offers advanced computational photography features, such as Live ND and Starry Sky AF, which enhance creativity in various shooting scenarios.

While both cameras have impressive features, the Olympus OM-D E-M5 Mark III is more suitable for photographers who prioritize portability and image stabilization. In contrast, the Olympus OM System OM-1 caters to those who appreciate a retro design and advanced computational photography capabilities. Ultimately, the choice between these two cameras depends on individual preferences and specific photography needs.

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 OM System OM-1 Storage and Battery

The Olympus OM System OM-1 outperforms the Olympus OM-D E-M5 Mark III in storage and battery, scoring 73 points compared to the latter’s 35 points. Both cameras share similarities in storage, accepting SD, SDHC, and SDXC memory cards, and offering USB charging capabilities.

The OM-1 surpasses the E-M5 Mark III with its dual memory card slots and compatibility with both UHS-I and II cards. Additionally, the OM-1 has a longer battery life of 530 shots, compared to the E-M5 Mark III’s 310 shots, and uses the BLX-1 battery type.

The E-M5 Mark III does not offer any particular advantages in storage and battery over the OM-1. Given the significant difference in their scores, the OM-1 proves to be the superior choice for photographers prioritizing storage capacity and battery life.

Storage and Battery
Storage and Battery
Memory Card
SD / SDHC / SDXC (UHS-II compatible)
SD / SDHC / SDXC (UHS-I & 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
530 shots
USB Charging
Sensor scores tested by DXOMARK

Olympus OM-D E-M5 Mark III vs OM System OM-1 – Our Verdict

Olympus OM-D E-M5 Mark III vs OM System OM-1 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 Olympus OM System OM-1:

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