Canon CR3 and CR2 to JPG: from EOS DSLRs to the R system
Canon has used three RAW formats over two decades. Knowing which one your camera writes, and what options like C-RAW change, makes converting to JPG much more predictable.
Canon shooters run into RAW files with three different extensions depending on when their camera was made. All of them hold the unprocessed sensor data, and none of them can be posted or shared directly. This page covers how the formats differ, what the in-camera options actually do to your files, and how to get a clean JPG from them.
Three generations of Canon RAW
| Format | Era | Typical cameras |
|---|---|---|
| CRW | Early 2000s | Early EOS digital bodies such as the D30, D60 and 10D, plus some PowerShot models |
| CR2 | 2004 to about 2018 | Most EOS DSLRs: Rebel/xxxD, xxD, 7D, 6D, 5D series, 1D X; PowerShot G series of that period |
| CR3 | 2018 onward | EOS M50 and later M models, the whole EOS R mirrorless line, and later DSLRs such as the 90D, 250D and 850D |
CR2 was based on the TIFF structure that many RAW formats share. CR3 moved to a newer container based on the ISO base media file format, the same family that MP4 video uses. That change is why a lot of older software could open every CR2 you owned but failed on the first CR3 you shot. Modern decoders, including the LibRaw engine RAWSnap runs on, read both.
RAW, C-RAW and Dual Pixel RAW
With CR3, Canon added a compression choice that changes file size more than anything else in the menu, and some bodies add a further option:
- RAW is the full-quality, lossless file.
- C-RAW uses lossy compression and produces noticeably smaller files, often by roughly a third or more. For normal exposures the difference is very hard to see. Where it can show up is in deep shadows that you lift a lot, which may look a little noisier or blotchier than the full RAW would.
- Dual Pixel RAW, available on a limited number of bodies (it first appeared on the 5D Mark IV, a CR2 camera, and later on some CR3 bodies), stores extra data from the Dual Pixel autofocus sensor. The file is roughly twice the size. That extra data is only usable in Canon's Digital Photo Professional; other converters develop it as an ordinary RAW.
A practical rule: shoot C-RAW for events, sports and travel where you take many frames and expose carefully, and full RAW for landscapes, night scenes and anything where you expect to recover shadows. See exposing for RAW for why getting exposure right matters more with lossy files.
sRAW and mRAW on CR2 cameras
Many CR2-era bodies offered smaller "sRAW" and "mRAW" sizes. Despite the name, these are not reduced versions of the normal sensor data. The camera partially processes them, so they behave a bit differently in converters and do not give the full editing flexibility of a regular RAW. If you have the choice for new photos, use full-size RAW and resize the JPG at export instead. RAWSnap's "Save for phone" option does exactly that.
Picture Styles are not in the RAW
Canon's Picture Styles (Standard, Portrait, Landscape, Faithful, Neutral, Monochrome, and Fine Detail on newer bodies) only shape the camera's own JPEGs. The style is recorded in the file as a note, but third-party converters start from their own neutral rendering. That is why a CR3 shot in Monochrome opens in color, and why a file shot in Landscape looks less saturated once developed elsewhere.
Other in-camera settings work the same way. Auto Lighting Optimizer and Highlight Tone Priority change how the JPEG is rendered. Highlight Tone Priority also exposes the sensor about one stop darker to protect highlights, so the raw data looks dark until you brighten it. If your CR2 or CR3 files consistently open darker than you expected, check whether that setting was on and raise Exposure in RAWSnap. Start around +15 to +25 and judge by eye; the slider works on the developed image, so it does not map exactly to camera stops.
If you want Canon's styles applied exactly, Canon's free Digital Photo Professional (DPP) reads them. To recreate a look in RAWSnap instead, start from the closest preset: Vivid for Landscape, Portrait for Portrait, B&W or B&W Bold for Monochrome. Our guide to presets explains how to adjust and save your own.
Getting good color from Canon files
Many photographers like the way Canon files render skin, and a neutral development is often a good base to start from. Common adjustments:
- Indoor shots look orange. Canon's auto white balance often keeps some warmth under tungsten light by default. Lower Temp until neutral grays look neutral, roughly -10 to -25.
- Blues feel too strong. If a sky looks overly saturated after other edits, a modest Saturation decrease of around -5 with Vibrance kept positive calms it down while keeping skin warm.
- Older APS-C bodies show shadow noise. CR2 files from early Rebels and xxD cameras get noisy quickly when shadows are lifted. Keep Shadows below about +30 and accept slightly darker shadows, or use a desktop editor with noise reduction for important frames.
- Portraits. The Portrait preset lowers Clarity and Contrast a little and lifts Shadows. On Canon skin tones it is often a finished look on its own.
Converting CR3 or CR2 to JPG
- Open RAWSnap and select your .CR3 or .CR2 files. Nothing leaves your computer or phone.
- Pick a preset or adjust Exposure, Highlights, Shadows, Temp and Tint.
- Save each photo for phone or at full quality, or download the whole set as a ZIP. For large event folders, see the batch workflow guide.
Old CRW files and other edge cases
- CRW from the early 2000s: RAWSnap's file picker is set up for CR2 and CR3. For a CRW archive, Canon DPP or a desktop editor is the safer route. Adobe's free DNG Converter can also turn CRW files into DNG, which most tools open.
- A brand-new Canon body: there is usually a delay before open-source decoders support a new camera. DPP is normally updated for new Canon models around their release.
- Cinema RAW Light (.CRM) video: this is a video format, not a still RAW, and it is not supported.
- HEIF files: some newer bodies can save 10-bit HEIF images when HDR PQ is enabled. These are processed images, not RAW, and they do not need converting from RAW.
When DPP or a full editor makes more sense
DPP is free, applies Canon's lens corrections through its Digital Lens Optimizer, and is the only tool that uses Dual Pixel RAW data. Lightroom, Capture One, darktable and RawTherapee add masks, noise reduction and 16-bit export. RAWSnap is the quick option: open a folder of CR3s on any computer, apply a look, and export JPGs without installing anything. For a broader comparison, see RAW editors compared.
FAQ
What is the difference between CR2 and CR3?
Both are Canon RAW formats. CR2 was used by most DSLRs from 2004 to about 2018. CR3 replaced it starting in 2018, uses a newer container, and adds the C-RAW compressed option. Image quality depends on the camera, not on the extension.
Is C-RAW worth using?
For most everyday and event photography, yes. Files are noticeably smaller and the quality loss is hard to see. For scenes where you expect to brighten deep shadows a lot, the full RAW keeps more headroom.
Why did my Monochrome CR3 open in color?
Picture Styles apply only to the camera's JPEG. The RAW keeps full color data, so third-party converters show it in color. Apply the B&W preset to get monochrome back.
Can I open CR3 files on a phone?
Many phone galleries can't display CR3 files. A browser-based converter can open them on recent phones, although very large files decode faster on a computer.
Open the converter