How to recover deleted photos from an SD card
Camera cards are the friendliest media for recovery — no TRIM, simple filesystems, and photo formats that are easy to identify sector by sector.
Why SD cards recover well
Two things work in your favour. First, SD cards generally don't receive TRIM commands the way an internal SSD does, so deleted data physically lingers. Second, camera files are highly structured — JPEG, RAW and MP4 all start with recognisable signatures, which makes raw-sector carving unusually reliable even when the filesystem is gone.
Step 1 — Stop shooting
Eject the card and set it aside. A single extra burst can overwrite hundreds of megabytes of recoverable frames. If the camera warns that the card needs formatting, don't let it.
Step 2 — Connect with a card reader
A direct card reader exposes the card as a block device, which is what deep scanning needs. Some cameras in USB mode present a restricted view instead, and that limits what any recovery tool can see.
Step 3 — Deep Scan and filter by type
Run a Deep Scan, then filter results to photos and video. Cinder groups by file type and shows inline previews, so you can confirm the shots you actually care about before recovering anything.
Step 4 — Recover to your computer
Save the recovered files to your internal disk or another external drive. Writing them back to the card would overwrite the very sectors still holding other photos.
RAW formats: what carves well, and what doesn't
Camera RAW files are unusually good candidates for recovery. They're large, highly structured, and begin with distinctive byte signatures, which is exactly what a signature carver needs.
- Canon CR2 / CR3, Nikon NEF, Sony ARW, Fujifilm RAF, Panasonic RW2 — all TIFF-derived or similarly structured, all recover well.
- Adobe DNG — also TIFF-based, and often the easiest of the lot.
- JPEG — the most recognisable signature there is. Recovers extremely reliably.
- Video (MP4, MOV, AVCHD) — trickier. Large files are more likely to be fragmented across the card, and a clip missing a middle fragment may recover as a file that plays for four seconds and stops. Preview before you count on it.
One practical note: RAW+JPEG shooters usually recover both copies. If a RAW comes back damaged, check whether its JPEG sibling survived — it's a smaller file and less likely to have been fragmented.
Deleted, formatted, or corrupted? They're different problems
People use these interchangeably and they have quite different prognoses:
- Deleted — you pressed delete on individual frames. The data is intact until overwritten. Best case.
- Formatted in camera — almost always a quick format that only clears the file table. The photos are still physically there and carve out well. Nearly as good.
- Corrupted / "card needs formatting" — the filesystem header is damaged but the photo data usually isn't. Deep Scan often recovers nearly everything. Crucially: do not let the camera or the OS format it to "fix" the error.
- Physically damaged — bent, snapped, water-damaged, or not detected electrically. Software can't help; a lab is the only option.
What about a card that won't mount?
A card the operating system can't mount may still be readable at the sector level, and deep scans often work anyway. If the card isn't detected at all electrically, that's a physical fault — no software can help, and a lab is the only option.