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Canon EOS R100 Mirrorless Camera w/RF-S 18- vs Canon EOS R6 Mark III Mirrorless Camera with Extra

Updated July 2026 — Canon EOS R6 Mark III Mirrorless Camera with Extra leads on price and battery.

The Canon EOS R100 is a budget-friendly option with a comprehensive bundle, while the Canon EOS R6 Mark III offers superior performance for professionals.

Why Canon EOS R100 Mirrorless Camera w/RF-S 18- is better

Price

R100 is significantly cheaper at $599.

Bundle

R100 includes a complete accessory kit.

Portability

R100 is lightweight and compact.

Why Canon EOS R6 Mark III Mirrorless Camera with Extra is better

Image Quality

R6 Mark III has a 32.5MP full-frame sensor.

Autofocus

R6 Mark III features advanced Dual Pixel AF II.

Shooting Speed

R6 Mark III shoots up to 40 fps.

Overall score

Canon EOS R100 Mirrorless Camera w/RF-S 18-
65
Canon EOS R6 Mark III Mirrorless Camera with Extra
90

Specifications

SpecCanon EOS R100 Mirrorless Camera w/RF-S 18-Canon EOS R6 Mark III Mirrorless Camera with Extra
Sensor TypeAPS-CFull-frame
Image ProcessorDIGIC 8DIGIC X
Video Resolution4K 24pHigher options
Autofocus143 AF ZonesDual Pixel AF II
Max ISO25600102400

Dimension comparison

Canon EOS R100 Mirrorless Camera w/RF-S 18-Canon EOS R6 Mark III Mirrorless Camera with Extra

Price Comparison

The Canon EOS R100 is significantly more affordable than the Canon EOS R6 Mark III, costing $599.00 compared to $2,799.00. This represents a staggering approximately 79% price difference. For budget-conscious photographers or those new to mirrorless cameras, the EOS R100 offers an enticing entry point with a comprehensive bundle that includes a lens, memory card, filters, and accessories. In contrast, the EOS R6 Mark III, while much more expensive, caters to professional photographers needing advanced capabilities, justifying its higher price tag. The substantial price gap makes the R100 a compelling choice for those seeking value without sacrificing essential features.

Image Quality

When it comes to image quality, the Canon EOS R6 Mark III holds a distinct advantage with its 32.5MP full-frame CMOS sensor compared to the 24.2MP APS-C sensor of the Canon EOS R100. This difference in megapixels allows the R6 Mark III to produce more detailed images, particularly in low-light situations where its full-frame sensor excels. The EOS R100, while capable and equipped with a DIGIC 8 image processor, does not reach the same level of image detail and performance as the R6 Mark III’s DIGIC X processor. Thus, for photographers focused on achieving the highest image quality, the R6 Mark III stands out as the superior option.

Autofocus Performance

The Canon EOS R6 Mark III features advanced autofocus capabilities, including Dual Pixel CMOS AF II, which supports detection of people, animals, and vehicles, with the added benefit of Register People Priority. This sophisticated system allows for precise focusing and tracking in dynamic shooting environments. Conversely, the Canon EOS R100 utilizes a more basic autofocus system with 143 AF zones, which, while effective for casual shooting, lacks the advanced tracking features of the R6 Mark III. Consequently, for users who require reliable and fast autofocus performance, especially in action photography, the R6 Mark III is the clear choice.

Shooting Speed

The Canon EOS R6 Mark III excels in shooting speed, offering up to 40 frames per second (fps) in photo shooting mode, along with 20 frames of pre-continuous shooting. This capability is particularly advantageous for capturing fast-moving subjects or action shots. In contrast, the Canon EOS R100 has a more modest shooting speed of 6.5 fps. While the R100 is suitable for general photography, those who need rapid shooting capabilities for sports or wildlife photography will find the R6 Mark III’s performance unmatched.

Video Capabilities

In terms of video features, the Canon EOS R100 supports 4K video at 24 frames per second with a crop, as well as Full HD at 60 fps, making it a solid choice for casual videographers. However, the Canon EOS R6 Mark III is likely to appeal more to serious video creators, as it offers superior video performance and flexibility, although specific video specs are not detailed in the provided data. The R6 Mark III's advanced features typically found in higher-end models make it better suited for professional video production, offering more options for frame rates and resolutions.

Build and Ergonomics

Both the Canon EOS R100 and the Canon EOS R6 Mark III are designed with user comfort in mind, but they cater to different audiences. The R100's lightweight and compact design make it an excellent choice for beginners and casual photographers looking for portability. Conversely, the R6 Mark III, while still manageable, is built for a more robust experience with features that appeal to professional users. It includes dual card slots, which are crucial for professionals needing to manage larger volumes of high-resolution files, and its overall build quality reflects its advanced capabilities.

Accessories Included

The Canon EOS R100 comes as a complete bundle that includes a Canon RF-S 18-45mm lens, a 64GB memory card, filters, and various accessories such as a tripod and a camera bag. This extensive package provides new users with everything needed to start taking photos right away. On the other hand, the Canon EOS R6 Mark III includes only an extra Canon LP-E6P battery along with the camera, which may require buyers to invest more in additional lenses and accessories. For those looking for an all-in-one solution without the need for further purchases, the R100 is undeniably more appealing.

Which should you buy?

Ultimately, the choice between the Canon EOS R100 and the Canon EOS R6 Mark III depends on your photography needs and budget. If you're a beginner or a casual photographer seeking an affordable, comprehensive package, the EOS R100 is a fantastic choice at $599.00. However, professional photographers or those who require top-tier performance, advanced autofocus, and greater shooting speeds will find the Canon EOS R6 Mark III worth its higher price of $2,799.00. Each camera excels in its own right, so assess your specific requirements to make the best decision.