If you want the quick version first, the Canon EOS R100 is an entry-level 24.1MP APS-C RF-mount mirrorless camera with a DIGIC 8 processor, a built-in EVF, one UHS-I SD card slot, and basic 4K video that comes with more caveats than the spec line suggests. It is inexpensive and simple, but it gives up a lot compared with the R50.
Canon R100 Guide: See all Canon EOS R100 setup and gear answers in one place.
Table of contents
Core specs that matter
- Sensor: 24.1MP APS-C CMOS
- Processor: DIGIC 8
- Mount: Canon RF mount
- Autofocus: basic Dual Pixel CMOS AF system for stills and Full HD, with more limited behavior in 4K
- Burst speed: about 6.5 fps in One Shot AF, about 3.5 fps in Servo AF
- Lens compatibility: RF and RF-S natively, EF and EF-S via Canon adapter, no EF-M compatibility
The R100 exists to be Canon’s low-cost entry point into the RF system. That makes sense for beginners who mainly want a simple stills camera with interchangeable lenses, but its spec sheet is much more modest once you look past the basic 24MP headline.
4K and video limitations
- 4K: 3840 × 2160 at 23.98p / 25p
- 4K crop: yes, recorded from a cropped central area
- 4K autofocus: contrast detection AF, not the stronger Dual Pixel behavior used in Full HD
- Full HD: up to 59.94p / 50p
- High frame rate: HD 119.88p / 100p without audio
- Canon Log: no
- Clip length: up to 29 minutes 59 seconds per video
This is the part that needs plain language. The R100 does technically shoot 4K, but it is not a strong 4K implementation. It is cropped, capped at 24p or 25p, and uses contrast AF in 4K. Full HD is the friendlier mode if you care about autofocus behavior.
Memory card support
The higher-confidence storage spec is single-slot SD / SDHC / SDXC with UHS-I support. As with the R50, some regional summary pages have created noise around this, but the manual and detailed specifications support UHS-I as the safer spec to publish.
- Card slot: 1
- Card types: SD / SDHC / SDXC
- Supported interface: UHS-I
- Practical buy: SDXC UHS-I for general use
Canon also notes that SDXC cards formatted as exFAT do not have the same 4GB single-file limit that older FAT32 SDHC cards do. That matters if you record longer clips and want fewer file-splitting annoyances.
Screen, EVF, battery, and ports
- Screen: fixed 3.0-inch rear screen
- Touchscreen: no
- EVF: 0.39-type OLED, about 2.36 million dots
- Battery: LP-E17
- Rated shots: about 430 in live view, about 340 with the viewfinder
- Mic input: yes, 3.5mm
- USB-C: communication only, no USB charging or USB power support
- Wireless: Wi-Fi 2.4 GHz and Bluetooth 4.2
- Weight: about 356g with battery and card
The fixed non-touch screen is one of the biggest real-world differences versus the R50. It makes the R100 feel more basic for vlogging, touchscreen focus control, and flexible framing.
Main compromises to know
- No IBIS: stabilization depends on lens IS or Movie Digital IS
- 4K is compromised: cropped, contrast AF, and 24p/25p only
- No touchscreen: the rear screen is fixed and non-touch
- No USB charging: the camera does not support charging or power over USB
- Single UHS-I card slot: fine for beginners, less appealing for heavier use
- Servo burst speed is modest: the 6.5 fps figure does not describe continuous subject-tracking performance
The honest buyer takeaway is that the R100 is a stills-first beginner camera. It can work well for simple photography, but its compromises are much easier to feel than on the R50.
Bottom line
The Canon R100 gives beginners a cheap way into Canon’s RF system, with a 24.1MP APS-C sensor, built-in EVF, and simple handling in a light body. The tradeoff is that Canon cut back on the things buyers notice fastest: weaker video, older processing, a fixed non-touch screen, no USB charging, and one UHS-I card slot.
If your priority is low cost and simple stills, the R100 specs are enough. If you want better autofocus behavior, better video, a flip touch screen, and a more convincing all-round package, the R50 is the upgrade that usually makes more sense.
More Canon R100 help: Back to the Canon R100 Guide
