Boxes of slides and sleeves of negatives are usually the most overlooked part of a family collection, and often the most valuable. They frequently contain images that were never printed at all.
Identifying What You Have
- 35mm slides: small cardboard or plastic mounts, roughly two inches square, often in carousel trays or yellow boxes.
- 35mm negatives: strips of four to six frames where colors are inverted and skin looks orange.
- 126 and 110 negatives: smaller square or rectangular frames from 1960s to 1980s pocket cameras.
- 120 medium format: wide strips about two and a quarter inches across, usually professional or 1950s family work.
- 8mm and Super 8 film: small reels of home movies, a separate transfer process from photo scanning.
What Is Worth Scanning
Hold a strip or slide up to a lamp. If you recognize the scene from a print you already have, it is a lower priority. If you do not recognize it, that image may exist only there.
- Scan first: slides with no matching print, family events, and anything with people you can name.
- Scan later: landscapes, repeated shots of the same scene, and heavily underexposed frames.
- Skip: blank, badly fogged, or completely blank frames.
Quality Settings That Actually Matter
- Slides and negatives should be scanned much higher than prints, because the original is tiny, typically 3000 to 4000 dpi.
- Prints scan well at 600 dpi for standard sizes, higher if you plan to enlarge.
- Ask for uncompressed or lightly compressed masters, not just small JPEGs.
- Dust and scratch reduction helps on color film, but should be off for black and white silver film.
Slides degrade quietly
Kodachrome holds up remarkably well, but Ektachrome and other process films shift color and grow mold in warm storage. If your slides have been in an Arizona garage, treat them as urgent.
Handling Film Safely
- Hold film by the edges only, fingerprints etch into emulsion over time.
- Store in archival sleeves, never in rubber bands or the original paper envelopes long term.
- Never try to clean film with household cleaners or tape.
- Carousel trays are fine for storage, but the trays themselves should live indoors.
If you are not sure what you have, bring the box to a free consultation. Identifying formats takes minutes and tells you exactly what your collection is worth digitizing.