After a shoot, keep the memory cards unchanged until the photographs exist in verified copies on independent storage. Copying files once does not establish a reliable backup. You need to know where the originals are, whether the copies contain the expected files and whether one failure could remove every copy together.
Choose the storage plan before the session. The number of cards or files may change, but a repeatable folder structure and verification routine make an unfinished transfer easier to notice.
Give the session one clear home
Create a session folder with an identifier you can distinguish from other shoots. Include the date and a short project label if that fits your filing method. Within it, separate camera originals from working edits and exports. Keep card contents identifiable when more than one card was used.
For example, a session folder could contain originals/card-01 and originals/card-02, followed by separate working and exports folders. Preserve original filenames during ingest unless your software has a reliable, understood renaming process. Different cameras or cards may produce duplicate filenames, so avoid dropping every file into one flat folder without checking collisions.
Record which cards were copied. A simple note can list the card label, destination and whether verification is complete. Mark an interrupted transfer as unfinished even if many files already appear in the destination.
Copy before selecting or deleting
Transfer the originals to the primary storage location. Keep the source card available and unchanged while checking the result. Avoid beginning permanent deletion during ingest because a hurried selection can remove something you later need.
Compare the expected file count and total size with the destination. These checks can reveal a missing folder or incomplete transfer, though matching counts and sizes alone do not prove that every byte is intact. Open photographs from the beginning, middle and end of each card, including any unusual file type used during the session.
If a transfer tool provides checksum verification, use that feature and review its report. A checksum comparison can confirm that the copied data matches the source at that time. It does not guarantee future storage health or prove that the camera originally captured an undamaged image.
Create an independent second copy
Copy the originals to another storage device or a suitable backup destination. A second folder on the same drive remains vulnerable to that drive failing. Keep at least one copy separated from the primary storage so a single local incident is less likely to affect both.
The familiar three-copy approach uses a working copy and two backups, with different storage and an offsite copy. Adapt that pattern to your equipment and needs, then check what each service actually preserves. Synchronization can propagate deletion or replacement, so learn whether the destination has recoverable versions and how long they remain available.
Cloud uploads may still be in progress after a folder appears in an application. Confirm completion and inspect the remote destination before counting it as a finished copy. Keep the card until the planned copies and checks are complete.
Preserve the selection and the edit instructions
The original photographs are only part of an editable project. Ratings, crop choices and adjustments may live in a catalog, database or sidecar files, depending on the application. Identify where your software stores that work and include it in the backup routine.
When selecting portraits from a contact sheet, keep the final selection tied to original file identifiers. That makes it easier to recover the chosen frames and their alternate crops without rebuilding the selection from memory.
Save a completed selection separately from provisional choices. If you deliver renamed exports, retain a mapping back to the source files. Exported JPEGs can be useful final outputs while still leaving you dependent on the originals and edit data for future changes.
Continue backing up as edits change. An original file may remain untouched while a selection, crop or retouching file develops over several days. Keep recoverable versions of that work where practical, and confirm which folders the backup includes after moving or renaming a session.
Prove that a copy can be restored
Occasionally restore a small session or sample folder from the backup to a separate location. Open the restored originals and confirm that the selection or edit data reconnects as expected. A visible folder list is weaker evidence than a successful restore.
Keep a brief note of the destination and check date, especially after changing drives or backup software. If a restore fails, retain the remaining copies while you diagnose it. Do not overwrite the only known working version with an uncertain replacement.
Record required deliverables in the portrait photography brief so your archive includes the final files as well as the material needed to revise them. Once the originals, edit data and required copies have passed your checks, mark the session complete and return cards to the ready-to-use set according to your camera's formatting procedure.