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Canon EOS R100 vs Canon EOS R3

Every spec side by side, from each maker's published figures.

Better figure, where one is clearly better

CanonEOS R100CanonEOS R3
Overview
ReleasedJune 2023November 2021
Image and sensor
Camera typeMirrorlessMirrorless
Sensor formatAPS-CFull frame
Sensor typeCMOSBack-illuminated stacked CMOS
Sensor dimensions22.3 × 14.9 mm36 × 24 mm
Effective resolution24.1 MP24.1 MP
Largest image6000 × 40006000 × 4000
RAW recordingYesYes
Standard ISO range100–12800100–102400
Sensor detailApproximately 24.1 million effective and 25.8 million total pixels; APS-C CMOS, 22.3 × 14.9 mm; no automatic sensor-cleaning systemApproximately 24.1 million effective and 26.7 million total pixels; full-frame back-illuminated stacked CMOS, approximately 36 × 24 mm in the maker's technical guide
Image formatsJPEG, RAW and C-RAW in CR3 format; HEIF not supported; normal RAW conversion 14-bit, reduced to 12-bit in silent continuous shootingJPEG, HEIF, RAW and C-RAW; CR3 still RAW and CRM movie RAW files
ISO detailStandard still-photo ISO 100–12800, expandable to ISO 25600; manual movie ISO 100–12800 with expansion, but Auto ISO in 4K is limited to ISO 6400Standard still-photo ISO 100–102400, expandable to ISO 50 or 204800; normal movie ISO 100–25600, or ISO 800–25600 with Canon Log 3
Image processorDIGIC 8DIGIC X
Lens and shooting
Lens mountCanon RFCanon RF
StabilisationOptical lens stabilisationLens and sensor shift
Maximum continuous burst6.5 fps30 fps
Lens detailNative RF/RF-S and adapted EF/EF-S lenses, excluding EF-M; approximately 1.6× focal-length equivalence; UK maker does not guarantee RF extenders, RF 5.2mm dual fisheye or RF 85mm F1.2L USM DS operationCanon RF lenses; EF/EF-S lenses via EF-EOS R adapter, excluding EF-M; EF-S lenses use approximately 1.6× crop
AutofocusDual Pixel CMOS AF for stills and Full HD; up to 143 automatic still-photo zones or 3975 selectable positions over approximately 88% horizontal/100% vertical area; human face/eye detection; 4K uses contrast-detection AF and high-frame-rate movie AF is disabled; −4 EV still-photo claim with f/1.2 non-DS lens, centre point, One-Shot AF, ISO 100 and room temperatureDual Pixel CMOS AF II with people, dogs, cats, birds and motorsport vehicle recognition; up to 4779 manually selected still-photo positions; −7.5 EV still-photo claim with f/1.2 non-DS lens, centre point, One-Shot AF, ISO 100 and room temperature. Eye-control selection is for stills only, requires calibration and may be affected by eyewear, individual eyes and shooting conditions
ShutterElectronic first curtain with mechanical second curtain, 30–1/4000 second plus Bulb; separate silent electronic-shutter mode has restrictions and may still produce lens/aperture soundsMechanical and electronic first curtain up to 1/8000 second; electronic up to 1/64000 second in Tv/M with restrictions; Bulb supported
Burst detailUp to 6.5 fps with One-Shot AF and focus fixed, or 3.5 fps with Servo AF; maker 32 GB UHS-I card, One-Shot AF, ISO 100 and Standard Picture Style test gives 97 JPEG, 6 RAW or 17 C-RAW frames; settings and card affect maximum burstNormal full-resolution continuous shooting up to 30 fps electronic with AF/AE tracking or 12 fps mechanical/electronic first curtain, depending on lens, battery and settings. Separate custom high-speed mode in firmware 1.2.0 or later reaches 195 fps for up to 50 frames; maker drive-mode manual fixes shutter speed, aperture and ISO from the first shot, and Amateur Photographer reports fixed AF/AE in this brief burst
Stabilisation detailNo in-body sensor-shift stabilisation; compatible lens optical IS and cropped Movie Digital IS supportedFive-axis in-body image stabilisation coordinated with compatible lens optical IS; Canon UK claims up to eight stops with specific RF lenses, not every lens
FlashBuilt-in manually raised flash, guide number 6 m at ISO 100; conventional five-pin hotshoe, not the 21-pin multi-function shoe; sync 1/250 second; no flash in silent shutter modeMulti-function accessory shoe; mechanical flash sync 1/200 second, electronic first curtain 1/250 second and electronic shutter 1/180 second
Exposure controlsP/Tv/Av/M and automatic scene modes; 384-zone evaluative metering; ±3 EV compensation–
Video
Highest video resolution3840 × 2160 at 25 fps6000 × 3164 at 59.94 fps
Video detailInternal UHD 3840×2160 at 23.98/25 fps with an additional central crop; Full HD up to 59.94/50 fps with Dual Pixel AF; HD 1280×720 high-frame-rate up to 119.88/100 fps without sound or autofocus. H.264 8-bit recording, no Canon Log; normal clip limit 29 minutes 59 seconds. Separate 4K time-lapse playback reaches 29.97 fpsInternal 6K RAW 6000×3164 up to 59.94/50 fps on CFexpress; oversampled uncropped DCI/UHD 4K up to 59.94/50 fps; 4K high-frame-rate 119.88/100 fps; Canon Log 3 and HDR PQ. RAW, 4K high-frame-rate and 4K60 ALL-I are not recordable to SD cards
AudioBuilt-in monaural microphone and 3.5 mm stereo microphone input; no headphone socketBuilt-in monaural microphone; 3.5 mm stereo microphone and headphone sockets, plus compatible multi-function-shoe audio accessories
Screen and viewfinder
ViewfinderElectronicElectronic
Screen size3″3.2″
Screen dots1,040,0004,150,000
TouchscreenNoYes
Tilting screenNoYes
Display detailFixed 3-inch TFT LCD, approximately 1.04 million dots and 100% coverage; not touch sensitiveFully articulated 3.2-inch capacitive touchscreen; technical guide specifies approximately 4.15 million dots, while the UK store rounds this to 4.2 million; approximately 100% coverage
Viewfinder detail0.39-inch OLED EVF with approximately 2.36 million dots and 100% coverage; 0.95× magnification with 50 mm lens at infinity, −1 dioptre and 3:2 aspect ratio0.5-inch OLED EVF, approximately 5.76 million dots, 100% coverage and 0.76× magnification with 50 mm lens at infinity
Connections and design
Wi-FiYesYes
BluetoothYesYes
Battery life (maker's claim)340 photographs620 photographs
Body weight309 g822 g
Release detailCanon Camera Museum records June 2023 marketing; no exact first-sale day inferredCanon Camera Museum records marketing in November 2021; no exact first-sale day is inferred
Recording mediaOne SD/SDHC/SDXC UHS-I slot in the battery compartmentOne CFexpress Type B slot and one SD/SDHC/SDXC UHS-II slot; recording to both is limited by the slower card
PortsUSB-C Hi-Speed USB 2.0, micro HDMI Type D, 3.5 mm microphone input and RS-60E3 remote-control terminal; USB cannot charge or power the cameraUSB-C 3.2 Gen 2, micro HDMI Type D, RJ45 Ethernet, 3.5 mm microphone/headphone sockets and N3 remote-control terminal
Wireless connectionsWi-Fi 802.11b/g/n at 2.4 GHz and Bluetooth Low Energy 4.2; UK maker says image.canon upload is absent from units shipped from June 2025 and may be removed from earlier units by optional firmwareWi-Fi 802.11a/b/g/n/ac at 2.4/5 GHz with regional frequency restrictions; Bluetooth Low Energy 5.0; built-in GPS, GLONASS and MICHIBIKI positioning
Battery life detailLP-E17; approximately 340 EVF or 430 screen shots for power-saving AE shooting at 23°C; technical guide lists 320 EVF/400 screen under the separate 50%-flash CIPA testLP-E19; CIPA power-saving approximately 620 EVF or 860 screen shots at 23°C using an SD card; smooth-display approximately 440/760 shots under the same maker conditions
ChargingSupplied LC-E17E external charger; optional AC-E6N and DR-E18 for AC power; no USB charging or operating powerIn-camera charging with optional USB Power Adapter PD-E1; this adapter does not power the camera while operating; AC-E19 and DR-E19 provide optional AC power
DimensionsApproximately 116.3 × 85.5 × 68.8 mm (width × height × depth)Approximately 150 × 142.6 × 87.2 mm (width × height × depth)
Weight detailTechnical guide specifies 309 g body only, excluding body cap, or 356 g with battery and card; the UK spec heading labels 356 g body only but its footnote explicitly includes battery/card; photographed kit lens excludedApproximately 822 g body only, excluding body cap, eyecup and multi-function-shoe cover; approximately 1015 g including battery and CFexpress card; photographed kit lens excluded
MaterialsMainly glass-fibre polycarbonate resin incorporating aluminium alloy; no water/dust-resistance claimMagnesium-alloy body with dust- and moisture-resistant construction; resistance is not an underwater rating
In the box–UK body package includes LP-E19 battery, LC-E19 charger and AC cable, R-F-5 body cap, ER-h small eyecup, IFC-100U interface cable/protector, ER-L1 strap and accessory-shoe cover

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