Canon EOS R100 Mirrorless Camera RF-S18- vs OM SYSTEM Olympus OM-1 Mark II Micro Four Thirds
Updated August 2026 — Canon EOS R100 Mirrorless Camera RF-S18- wins on portability, OM SYSTEM Olympus OM-1 Mark II Micro Four Thirds wins on build quality and battery life.
The Canon EOS R100 offers excellent value for beginners, while the OM SYSTEM Olympus OM-1 Mark II excels in advanced features and durability.
Why Canon EOS R100 Mirrorless Camera RF-S18- is better
Price
Canon EOS R100 is significantly cheaper at $579.
Weight
Canon is the smallest and lightest in the EOS R series.
User-Friendly
Canon offers a straightforward setup for beginners.
Why OM SYSTEM Olympus OM-1 Mark II Micro Four Thirds is better
Autofocus
Olympus has 1,053 focusing points for high precision.
Build Quality
Olympus is weather-sealed for outdoor use.
Video Features
Olympus excels in advanced video capabilities.
Overall score
Specifications
| Spec | Canon EOS R100 Mirrorless Camera RF-S18- | OM SYSTEM Olympus OM-1 Mark II Micro Four Thirds |
|---|---|---|
| Sensor Type | CMOS (APS-C) | BSI Stacked |
| Image Processor | DIGIC 8 | TruePic X |
| Video Resolution | 4K | 4K |
| Weather Sealing | No | Yes |
| Max ISO | 25600 | 25600 |
Dimension comparison
Price Comparison
The Canon EOS R100 is priced at $579.00, making it significantly more budget-friendly compared to the OM SYSTEM Olympus OM-1 Mark II, which retails for $1,999.99. This difference of $1,420.99 means the Canon camera is about 71% cheaper than its competitor. For those just starting in photography or looking for a mirrorless camera without breaking the bank, the EOS R100 presents a compelling option. However, the higher price of the OM-1 Mark II might reflect its advanced features and capabilities, appealing to more experienced photographers who require enhanced performance.
Image Quality
In terms of image quality, the Canon EOS R100 boasts a 24.1 Megapixel CMOS (APS-C) sensor, while the OM SYSTEM Olympus OM-1 Mark II features a 20MP BSI stacked sensor. Although the Olympus offers a lower megapixel count, its advanced technology provides excellent resolution and low noise. The Canon's APS-C sensor is designed for superb clarity and detail, capturing images with a beautiful natural bokeh. Both cameras deliver impressive results, but the choice between them may depend on whether you prioritize higher megapixels or superior low-light performance and noise reduction.
Autofocus Technology
The autofocus systems in both cameras are designed to enhance the shooting experience, but they function differently. The Canon EOS R100 employs Dual Pixel CMOS AF with 143 zones, boasting excellent face and eye detection capabilities, which is ideal for portrait photography. On the other hand, the OM SYSTEM Olympus OM-1 Mark II features Cross Quad Pixel AF with 1,053 all cross-type focusing points, providing high precision and fast focusing in various shooting conditions. This makes the Olympus potentially more effective for fast-paced scenarios like wildlife photography, where quick and accurate focus is crucial.
Video Capabilities
When it comes to video capabilities, the Canon EOS R100 offers 4K video recording at up to 24 frames per second, along with Full HD options up to 60 fps. This makes it a solid choice for video content creators looking to capture high-quality footage at an entry-level price point. In contrast, the OM SYSTEM Olympus OM-1 Mark II is not only equipped with advanced computational photography features but also excels in video capabilities, making it a versatile tool for both stills and video. While the Canon is a great starting point for 4K recording, the Olympus may cater to more demanding video needs, especially in challenging conditions.
Build Quality and Design
The Canon EOS R100 is noted for its compact and lightweight design, being the smallest and lightest in the EOS R series. This portability makes it an excellent choice for users who prioritize mobility in their photography kit. Conversely, the OM SYSTEM Olympus OM-1 Mark II is designed with a weather-sealed body, rated IP53, making it dustproof, splashproof, and freeze-proof down to -10℃. This robust build quality is particularly advantageous for outdoor photographers who often face unpredictable weather conditions.
Performance in Challenging Conditions
The OM SYSTEM Olympus OM-1 Mark II stands out in terms of performance in challenging conditions due to its weather-sealed design. This feature enables photographers to shoot confidently in adverse weather, while the Canon EOS R100, with its lighter build, may not offer the same level of protection. Additionally, the Olympus camera includes advanced computational photography functions, such as Handheld High Res Shot and HDR shooting, which can be invaluable in dynamic environments. While both cameras perform admirably, the Olympus is better suited for those who frequently venture outdoors in less-than-ideal conditions.
User-Friendly Features
User-friendliness is crucial for both novice and experienced photographers. The Canon EOS R100 offers a straightforward setup with features that make it accessible for beginners, including a simple interface and helpful autofocus settings. Its DIGIC 8 image processor enhances shooting functionality, providing a smooth user experience. The OM SYSTEM Olympus OM-1 Mark II, while packed with advanced features, may have a steeper learning curve due to its extensive capabilities, including various computational photography modes. Photographers may find the Canon easier to navigate initially, while the Olympus may reward those willing to invest time in mastering its advanced features.
Which should you buy?
Ultimately, the decision between the Canon EOS R100 and the OM SYSTEM Olympus OM-1 Mark II boils down to your specific needs and budget. If you are looking for an affordable, lightweight option with solid image quality and video capabilities, the Canon EOS R100 at $579.00 is an excellent choice. However, if you require advanced features, superior autofocus, and the ability to shoot in challenging weather conditions, the OM SYSTEM Olympus OM-1 Mark II, despite its higher price of $1,999.99, may be worth the investment. Each camera excels in its own right, catering to different types of photographers.

