Canon EOS R100 Mirrorless Camera w/RF-S 18- vs OM SYSTEM Olympus OM-3 Silver Micro Four Thirds
Updated July 2026 — Canon EOS R100 Mirrorless Camera w/RF-S 18- wins on price and video, OM SYSTEM Olympus OM-3 Silver Micro Four Thirds wins on build.
The Canon EOS R100 offers a more affordable entry into mirrorless photography with a comprehensive bundle, while the OM SYSTEM Olympus OM-3 provides superior build quality and weather sealing.
Why Canon EOS R100 Mirrorless Camera w/RF-S 18- is better
Price
Canon is $1,100 cheaper than Olympus
Bundle Value
Canon includes multiple accessories in the bundle
Sales Rank
Canon ranks significantly higher in sales
Why OM SYSTEM Olympus OM-3 Silver Micro Four Thirds is better
Build Quality
Olympus features a premium metal body
Weather Sealing
Olympus has an IP53 rating for durability
Sensor Technology
Olympus has advanced computational photography features
Overall score
Specifications
| Spec | Canon EOS R100 Mirrorless Camera w/RF-S 18- | OM SYSTEM Olympus OM-3 Silver Micro Four Thirds |
|---|---|---|
| Sensor | 24.2 MP APS-C | 20 MP Stacked BSI |
| Video | 4K 24p | Not specified |
| Autofocus | 143 AF Zones | Not specified |
| Viewfinder | 2.36m-Dot OLED | 2.36m-Dot OLED |
| Connectivity | Wi-Fi & Bluetooth | Not specified |
Dimension comparison
Overview of the Canon EOS R100 and OM SYSTEM Olympus OM-3
The Canon EOS R100 is significantly cheaper than the OM SYSTEM Olympus OM-3, priced at $599.00 compared to $1,699.99, making the Canon about 65% less expensive. This price difference is substantial, especially for new photographers or casual users looking for good performance without breaking the bank. The Canon also ranks higher in sales, holding a bestseller rank of 1360, while the Olympus sits at 25171.
Design and Build Quality
The OM SYSTEM Olympus OM-3 boasts a vintage-styled, premium metal body, which appeals to photographers who appreciate a classic aesthetic. This design is complemented by an IP53 rating, making it dustproof, splashproof, and freezeproof. In contrast, the Canon EOS R100 has a more modern feel typical of Canon’s mirrorless range but does not feature the same level of weather sealing. Thus, if durability and ruggedness are primary concerns, the OM-3 might be the better option.
Image Quality and Sensor Performance
In terms of sensor performance, the OM SYSTEM Olympus OM-3 features a 20 MP stacked BSI Live MOS sensor, providing excellent image quality and low-light performance. The Canon EOS R100, with its 24.2 MP APS-C CMOS sensor, offers slightly higher resolution and the DIGIC 8 Image Processor for enhanced image processing capabilities. Therefore, while both cameras provide impressive imaging capabilities, the Canon might edge out slightly in resolution, allowing for larger prints and more detail.
Video Capabilities
When it comes to video capabilities, the Canon EOS R100 can shoot 4K video at 24p with a crop and full HD video at 60p. This makes it a solid choice for those who want to venture into video recording. The OM SYSTEM Olympus OM-3, although it doesn't specify 4K capabilities, includes computational photography features like Live ND and Live Composite that can enhance video quality creatively. However, for dedicated videographers, the 4K option on the Canon is more appealing.
Autofocus and Shooting Speed
The Canon EOS R100 features Dual Pixel CMOS AF with 143 AF zones, providing quick and accurate autofocus, which is crucial for capturing moving subjects. It also supports a shooting speed of 6.5 fps with the electronic shutter. Meanwhile, the OM SYSTEM Olympus OM-3 offers advanced computational photography features that may enhance focus stacking and high-resolution shots but lacks specific details on its autofocus performance. Thus, for those focused on fast-action photography, the Canon's specs are more advantageous.
User Experience and Features
The Canon EOS R100 includes a 3" 1.04m-Dot LCD screen and a 2.36m-Dot OLED EVF, both of which contribute to a user-friendly experience. It also supports Wi-Fi and Bluetooth, allowing for easy sharing of images. The OM SYSTEM Olympus OM-3 also features a 2.36m-Dot OLED viewfinder but doesn’t specify a touchscreen interface. The availability of connectivity options in the Canon makes it more appealing for users who want to share their work quickly and efficiently.
Accessories and Bundle Options
The Canon EOS R100 comes as part of a complete bundle that includes not only the camera and lens but also additional accessories like a 64GB memory card, filters, a flash, and a tripod. This comprehensive package adds significant value, especially for beginners who need everything to start shooting right away. On the other hand, the OM SYSTEM Olympus OM-3 is sold as a standalone camera, which may require additional investment in accessories to match the Canon's bundled offerings.
Which should you buy?
Ultimately, the choice between the Canon EOS R100 and the OM SYSTEM Olympus OM-3 comes down to your specific needs and budget. If you are looking for a more affordable entry point into mirrorless photography with a robust set of features and accessories, the Canon EOS R100 is an excellent option. However, if you prioritize build quality, weather sealing, and higher-grade materials for more rugged photographic adventures, the OM SYSTEM Olympus OM-3 might be worth the investment despite its higher price.

