CR3 vs ICO
Ein detaillierter Vergleich von Canon RAW CR3 und ICO Icon — Dateigröße, Qualität, Kompatibilität und welches je nach Workflow zu wählen ist.
Canon RAW CR3
Raster & Vector ImagesCR3 is the newer Canon RAW format used in EOS R mirrorless cameras and newer DSLRs. It offers improved compression and image quality over CR2.
Über CR3-DateienICO Icon
Raster & Vector ImagesICO is the icon file format used for favicons and Windows application icons. A single ICO file can contain multiple image sizes and color depths for different display contexts.
Über ICO-DateienVorteilsvergleich
CR3 Vorteile
- Modern ISO Base Media File Format container.
- Supports lossless + compressed C-RAW in the same extension.
- Preserves every pixel of Canon mirrorless sensors.
- Compatible with Canon's cross-camera pipeline (DPP, Cinema EOS).
ICO Vorteile
- Multi-resolution: one file, many sizes, OS picks the right one.
- Universal favicon support in every browser since IE5.
- Supports transparency (1-bit since 1985, full alpha since XP).
- Tiny file size — an entire favicon pack typically fits in under 15 KB.
- No licensing or patent concerns — fully in the public domain spec-wise.
Einschränkungen
CR3 Einschränkungen
- Proprietary — no public spec.
- Third-party support is always playing catch-up with each new body.
- Older Canon processing software (DPP 4) does not read CR3.
- File sizes remain large — 45+ MB per shot on flagship bodies.
ICO Einschränkungen
- Cannot compress continuous-tone images efficiently — use PNG or WebP for photos.
- Format is essentially frozen in 1999 — no HDR, no wide gamut, no modern features.
- Maximum image dimension is 256×256 px (inside an ICO container).
- Editing requires specialized tools — most image editors treat it as a curiosity.
Technische Spezifikationen
| Spezifikation | CR3 | ICO |
|---|---|---|
| MIME type | image/x-canon-cr3 | image/vnd.microsoft.icon |
| Extension | .cr3 | — |
| Container | ISO Base Media File Format (ISOBMFF) | — |
| Variants | CRAW (lossless), C-RAW (lossy compressed) | — |
| Predecessor | .cr2 (2004-2018) | — |
| Max resolutions per file | — | 65 535 images |
| Max single image size | — | 256×256 px |
| Color depths | — | 1, 4, 8, 24, 32 bits per pixel |
| Compression | — | Uncompressed bitmap or embedded PNG (Vista+) |
Typische Dateigrößen
CR3
- 24 MP CR3 lossless (R6, M50) 30-40 MB
- 45 MP CR3 lossless (R5) 45-60 MB
- 45 MP C-RAW compressed 25-35 MB
ICO
- Classic favicon (16×16 only) < 2 KB
- Multi-size favicon pack (16/32/48/256) 5-15 KB
- Full Windows app icon set 20-100 KB
Bereit zum Umwandeln?
Wandle zwischen CR3 und ICO online um, kostenlos und ohne Installation. Verschlüsselter Upload, automatische Löschung in 60 Minuten.
Häufig gestellte Fragen
CR3 (Canon RAW CR3) is an image format used to store raster graphics — a two-dimensional grid of pixels describing a picture. It is part of the raster & vector images family and designed around a specific trade-off between file size, visual fidelity, and feature support (transparency, colour depth, compression type). Photographers, web designers, and content creators choose CR3 when its particular strengths match the publishing target.
CR3 (Canon RAW CR3) is an image formato used to store raster graphics — a two-dimensional grid of pixels describing a picture. It is part of the raster & vector images family e designed around a specific trade-off between tamanho do arquivo, visual fidelity, e feature support (transparency, colour depth, compressão type). Photographers, web designers, e content creators choose CR3 when its particular strengths match the publishing target.
Most desktop photo viewers (Windows Photos, macOS Preview, GIMP, Photoshop, Affinity Photo) open CR3 natively. On mobile, iOS Photos and Google Photos display CR3 in the gallery when supported by the OS. If the format is rare or new, convert to JPG or PNG first — both are universally readable — using our CR3 to JPG or CR3 to PNG converter.
Most desktop photo viewers (Windows Photos, macOS Preview, GIMP, Photoshop, Affinity Photo) abrir CR3 natively. On mobile, iOS Photos e Google Photos display CR3 no gallery when suportado por the OS. If the formato is rare ou new, converter to JPG ou PNG first — both are universally readable — usando our CR3 to JPG ou CR3 to PNG converter.
Upload the CR3 to KaijuConverter and pick a target format (JPG, PNG, WebP, HEIC, TIFF, BMP, SVG, PDF). The conversion runs in the browser via ImageMagick and returns a download in seconds. No account or installation required; both input and output delete automatically within two hours.
It depends on the task. JPG is the smallest file size for photographs; PNG is lossless with transparency; CR3 has its own niche that may favour colour depth, animation, or encoding efficiency over one or both of those. For the final web publish, test all three and measure file size plus visible quality on real content.