How to Convert Multiple CR3 Images to STP?
1. Download and Install reaConverter
First, grab reaConverter from the download button below. Installation is fast, and the software runs offline — no account or signup needed. reaConverter also includes editing tools: resize, crop, rotate, and more.
2. Load your CR3 files
Add your CR3 files to reaConverter. Whether it's a handful or an entire archive, the batch engine processes them efficiently.
You can drag-and-drop files, browse to a folder, or add entire directory trees including subfolders.
3. Select STP as output format
Set STP as output format and select where to save your converted files. Customize quality settings if needed.
4. Start CR3 to STP conversion
Click the Convert button to start. reaConverter will process all your files with the settings you selected.
When finished, your new .stp files will be waiting in the destination folder.
CR3 to STP: what to expect from the conversion
CR3 files hold unprocessed sensor data, so white balance and exposure are still adjustable. Converting to STP bakes those decisions into the pixels, and highlight recovery is no longer available afterwards. Set white balance and exposure before the run rather than after. CR3 is made of pixels and STP is a geometry format, so the two describe images in fundamentally different ways. Check the result before sending it downstream: what matters is whether the output contains editable geometry or a picture placed inside a STP container, and that determines whether a CAD or design tool can work with it.
