Over CR3-bestanden

CR3 (Canon RAW CR3 · Afbeeldingsformaat)

Uitgebracht 2018 Door Canon

Canon RAW CR3 (.cr3) is een standaard bestandsformaat dat door KaijuConverter wordt ondersteund voor gegevensuitwisseling, archivering en platformonafhankelijke conversie.

Categorie

Raster & Vector Images

Extensie

.cr3

MIME-type

image/x-canon-cr3

Bruikbaar als

Invoer

Het verhaal

HOE CR3
IS ONTSTAAN.

CR3 shipped in May 2018 with the Canon EOS M50, replacing CR2 after 14 years as Canon’s native raw format. The structural change is significant: where CR2 was a TIFF variant with Canon's own IFD tags, CR3 uses the ISO Base Media File Format container — the same as MP4 and HEIF. Canon also introduced C-RAW, a lossy-compressed raw variant that ships inside CR3 at 40% smaller file sizes than the full CRAW lossless.

Every Canon EOS R mirrorless body, every late-cycle DSLR since 2018, every Cinema EOS C70/C80, and every mainstream EOS M/RP/R5/R6 writes CR3. A decade-plus of CR2 archives still exists in professional libraries, but CR3 is the active format. Canon still doesn’t publish the spec — like CR2, every third-party raw processor has reverse-engineered the internal layout.

WEETJES &
TRIVIA.

CR3 was Canon's first major raw-format change in 14 years — CR2 ruled from 2004 to 2018.

C-RAW (lossy compressed RAW, inside a CR3 container) cuts file sizes by ~40% with perceptually equal quality — a real middle ground for photographers who shoot bursts.

CR3 uses ISO Base Media File Format (same as MP4/HEIF) — a radical break from CR2's TIFF lineage.

Canon still does not publish the CR3 spec — Lightroom, Capture One, and Darktable all reverse-engineered it.

The EOS R5's 45 MP CR3 files are typically 45-55 MB; in C-RAW, closer to 30 MB — cuts a day's shoot from 30 GB to 18 GB.

STERKE PUNTEN &
BEPERKINGEN.

Sterke punten

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).

Beperkingen

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.

Typische bestandsgroottes

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

Technische specificaties

MIME type: image/x-canon-cr3
Extension: .cr3
Container: ISO Base Media File Format (ISOBMFF)
Variants: CRAW (lossless), C-RAW (lossy compressed)
Predecessor: .cr2 (2004-2018)

CONVERTEER VANUIT
CR3

cr3 jpg cr3 png cr3 webp cr3 avif cr3 gif cr3 bmp cr3 tiff cr3 ico cr3 pdf

Veelvoorkomende toepassingen

Canon mirrorless photography, EOS R system