Browse and compare
Prefer embedded previews and compare supported X3F/DNG files in 1-up, 2-up, or 4-up views.
Requires macOS 14 or later
X3F DNG Select
Quickly compare supported SIGMA X3F and DNG photographs, then safely select the original RAW files you want.
Version 1.0.0 · Originals are never edited, moved, or deleted
○ / △ / × culling
Set Accepted, Hold, Rejected, or Unreviewed states quickly, including from the keyboard.
Safe Selected copies
Copy only accepted original RAW files to Selected. Identical files are skipped and different same-named files are never overwritten.
Exif and output
Use Exif filters, display rotation, contact-sheet PDF, printing, and session restoration.
Verified scope
Representative real files have been verified for X3F from SIGMA DP1 Merrill and DP3 Merrill cameras and DNG from a SIGMA fp L. Support for every X3F, DNG, camera, firmware, or shooting mode is not guaranteed. The app does not convert X3F sensor data into DNG.
Privacy
Images and Exif are processed on the Mac and are not uploaded to a developer-operated server. The app uses no account, advertising, tracking, usage analytics, or third-party data-collection SDK.