Head to head · specs cited · drawn to scale
Canon EOS R3 vs Canon EOS R5 Mark II
Every spec below is quoted from the makers' official pages — where a figure isn't published we say so rather than guess. Sizes are drawn at true relative scale from published dimensions, and the bag-fit row is computed against our measured bag catalog.
The 3 biggest published differences
- Resolution (MP): the R5 II leads at Approx. 45 megapixels vs the R3's 24.1.
- Weight (body): the R5 II leads at 746 g vs the R3's 1015 g.
- In-body stabilisation: the R5 II leads at Yes, up to 8.5-Stops advantage at the center and 7.5-stops peripheral depending on the lens used vs the R3's 8 (combined with compatible RF lens IS, per usa.canon.com/shop/p/eos-r3).
 R3 Canon RF |  R5 II Canon RF | |
|---|---|---|
| Overview | ||
| Type | Mirrorless | Mirrorless |
| Format | Full-frame (approx. 36.0 x 24.0 mm) | Full-frame (35mm) |
| Lens mount | Canon RF | Canon RF |
| Released | —, not published | —, not published |
| Sensor & Image | ||
| Sensor type | Full-frame back-illuminated stacked CMOS sensor | 36 x 24 mm Full Frame back-illuminated stacked CMOS sensor |
| Sensor size | Full-frame (approx. 36.0 x 24.0 mm) | Full-frame (35mm) |
| Resolution (MP) | 24.1 | Approx. 45 megapixels |
| In-body stabilisation | 8 (combined with compatible RF lens IS, per usa.canon.com/shop/p/eos-r3) | Yes, up to 8.5-Stops advantage at the center and 7.5-stops peripheral depending on the lens used |
| ISO range | 100 | Auto 100-51200 (in 1/3-stop or 1 stop increments); ISO can be expanded to L:50, H1:102400 |
| Autofocus & Speed | ||
| AF system | Dual Pixel CMOS AF II | Dual Pixel Intelligent AF |
| Subject detection | Vehicle Detection as well as Eye, Face, Head, and Animal Detection (usa.canon.com/shop/p/eos-r3); 1053 AF zones (39x27) per KB specifications | Humans (Eyes, Face, Head, Upper half of body, Body), Animals (Dogs, Cats, Birds and Horses) or Vehicles (Racing cars or Motor bikes, Airplanes and Trains), Register People Priority, Action Priority |
| Burst — mechanical | 12 | Max. Approx. 12 fps. with Mechanical shutter/1st curtain electronic |
| Burst — electronic | 30 | 30 FPS with electronic shutter (Custom options 30 / 20 / 15 / 12 / 10 / 7.5 / 5 / 3 / 2 / 1 FPS) |
| Video | ||
| Max video | 6K RAW / 4K UHD up to 60p (oversampled) | 8K DCI (17:9) 8192 x 4320 up to 59.94 fps (RAW Light); 4K DCI up to 119.9 fps |
| Codecs / sampling | MP4 (ALL-I, IPB Standard, IPB Light); H.264/H.265 | RAW/SRAW Video (8K/4K DCI); MP4 Video (8K/4K DCI/UHD, 2K/Full HD); 8K RAW or 4K SRAW ProRes recording via HDMI; Canon Log supported |
| Recording limit | not published (no fixed clip-length limit stated on spec page beyond card/thermal limits) | Max duration 6 hours. (excluding High Frame Rate movies). No 4 GB file limit with exFAT formatted card. |
| Viewfinder & Screen | ||
| EVF resolution | 5,760,000 dots | 5.76 Million dots (1600x1200) |
| EVF magnification | Approx. 0.76x | Approx. 0.76x |
| Rear screen | 3.2-inch TFT color LCD, Approx. 4,150,000 dots, vari-angle touchscreen | 8.0cm (3.2") TFT Colour LCD, approx. 2.1 million dots, Vari-angle touchscreen (capacitive touch) |
| Body & Handling | ||
| Dimensions (W×H×D) | 150 × 142.6 × 87.2 mm | 138.5 × 101.2 × 93.5 mm |
| Weight (body) | 1015 g | 746 g |
| Weather sealing | Dust and drip resistance equal to the EOS-1D X Series (usa.canon.com/shop/p/eos-r3) | Water/Dust Resistance: Yes. Although the camera features dust- and water-resistant construction, this cannot completely prevent dust or water droplets from entering the camera. |
| Shutter durability | —, not published | —, not published |
| Power & Storage | ||
| Battery life (CIPA) | 620 (viewfinder, power saving, +23°C, LP-E19) | With LCD Approx. 630 shots (at 23°C); With Viewfinder Approx. 340 shots (at 23°C) |
| Battery | LP-E19 | Rechargeable Li-ion Battery LP-E6P (supplied) |
| Card slots | 1x CFexpress (Type B), 1x SD (UHS-II) | 1x CFexpress type B (max capacity 8 TB, CFexpress 2.0 and VPG400) + 1x SD/SDHC/SDXC UHS-II |
| Connectivity | ||
| USB | USB Type-C, SuperSpeed Plus USB (USB 3.2 Gen 2) equivalent | SuperSpeed Plus USB 3.2 Gen 2 USB Type-C connector |
| Wireless | IEEE 802.11a/ac/b/g/n Wi-Fi; Bluetooth Specification Version 5.0 (BLE) | Wireless LAN (IEEE 802.11ax 2x2 MIMO) (6 GHz / 5 GHz / 2.4 GHz), with Bluetooth 5.3 support |
| HDMI | HDMI micro OUT terminal (Type D) | HDMI out (Type A, HDMI-CEC not supported) |
| Price | ||
| Launch price | not published (current usa.canon.com/shop/p/eos-r3 Regular Price shown as $5,399.00, not confirmed as original launch MSRP) | —, not published |
| Size, to scale | ||
Front view, drawn at the same scale from each maker's published W×H (mm). | ||
| Smallest bag that fits | ||
| Body + standard zoom | WANDRD Essential Camera Cube (for PRVKE 21) Fits with 24-105 f/4 · View at WANDRD | Tenba BYOB 10 Camera Insert Fits with 24-105 f/4 · View at B&H Photo Video |
Sources
official · R3 specifications: Canon USA (official Knowledge Base: EOS R3 Specifications) · accessed 2026-07-10
“Type: Full-frame back-illuminated stacked CMOS sensor | Effective pixels: Max. approx. 24.1 megapixels ... Number of AF zones | Still photos | Max. 1053 zones (39 x 27) ... High-speed continuous shooting+ | One-Shot AF | Max. approx. 12 shots/sec. ... Max. approx. 30 shots/sec. (electronic) ... Dot count: Approx. 5,760,000 dots ... Compatible battery packs | LP-E19”
“36 x 24 mm Full Frame back-illuminated stacked CMOS sensor; Effective Pixels Approx. 45 megapixels; Sensor Shift-IS Yes, up to 8.5-Stops advantage; Continuous Shooting Max. Approx. 12 fps with Mechanical shutter or 30 FPS with electronic shutter; Viewfinder 5.76 Million dots (1600x1200), Magnification Approx. 0.76x”
Spec values are the manufacturers' published figures, compared factually — we don't rank cameras. Fit verdicts are planning estimates from published interior dimensions, not guarantees. See methodology.
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