The short answer: Because a black-and-white image has no dyes to fade. Silver-gelatin black and white lasts a century and more with proper processing (Library of Congress). Colour is three dye layers fading at different rates, hence the cast. But the acetate base ages regardless: vinegar syndrome starts after roughly 40–50 years at room temperature (IPI, NFPF). Grandpa's picture survived; the film carrying it may not.
Open a mixed box: 8mm reels from the 1950s in crisp black and white, beside Super 8 from the 1970s gone orange-pink. The younger films faded; the older did not.
Why is black and white so stable?
In black-and-white film the image is metallic silver grains held in gelatin — no dye to break down in light or heat. The Library of Congress rates silver-gelatin the most stable photographic material: a century and more, provided the lab processed and washed it properly.
What happens to colour over the years?
A colour image is three dye layers — cyan, magenta, yellow — each breaking down at its own rate; when one fades faster, the whole film takes on a cast. Wilhelm measures about 75–80 years in dark storage for Ektachrome (E-6); older generations fade faster, typically to magenta. Colour prints of the 1960s–80s are the weakest link: per NARA they fade even in a closed album, since dark fading depends on heat and humidity. More in do photos and slides fade.
Is Kodachrome really almost eternal?
In the dark, almost: per Wilhelm the most sensitive Kodachrome dye needs about 185 years in dark storage to lose 20 percent of its density (measured on slides; for home movies we apply it qualitatively). Under projection it is among the worst: the Library of Congress reports significant fading within about 10 minutes, and Wilhelm found one projector hour harms Kodachrome as much as 2.5–3 hours harm Ektachrome.
If the image survived, why is the film falling apart?
Because image and base age separately. Almost every home movie sits on cellulose acetate, which decomposes and releases acetic acid — vinegar syndrome — whatever the image. Per IPI and NFPF, onset at room temperature comes after about 40–50 years, and just 15°F cooler delays the first signs by 150 years. Above 1 percent shrinkage, per Kodak, the film is unsafe to project. See vinegar syndrome and how long 8mm film lasts.
What does scanning recover?
What scanning can save:
| Type | Image stability | Base risk | What scanning recovers |
|---|---|---|---|
| Silver-gelatin black and white | Highest — a century and more (Library of Congress) | Acetate: vinegar syndrome, shrinkage | Almost everything |
| Kodachrome | Excellent in the dark (Wilhelm), poor under projection | Same acetate base | Full colour if not projected much |
| Ektachrome / E-6 | About 75–80 years (Wilhelm), drifts to magenta | Same acetate base | Balancing recovers a lot |
| C-41 colour prints (photos) | Weakest (NARA); fades even in a closed album | Paper — not acetate | Cast correction only |
How do we scan and restore?
Every reel is inspected by hand before scanning — perforations, flexibility, splices, vinegar smell — and repaired before, not during. The scan is frame by frame on a Filmfabriek Muller HDS+. Faded colour goes to our film restoration and colour correction service, which rebalances the three layers; files come as ProRes, MXF or MP4. Kodachrome slides are scanned on an Epson V850 Pro with Digital ICE deliberately off — the silver layer misleads the infrared. More on frame-by-frame film scanning.
Colour reels yellowing while the black and white is still sharp? Send both — we scan before the base fails and balance what remains.
We send couriers to your door anywhere in Israel, in both directions. Small jobs are usually ready within about seven business days, larger ones within about 21 business days, and the first minute is on us — you see how your film comes out before you decide. You can also drop off in person: our studio at 9 HaMa'ayan St., Rishon LeZion, 5 Lisin St. in Tel Aviv, or Mitzpe Hararit in the Galilee. Call 03-5610368 or leave your details on the contact page. What each service includes is listed on our price list (Hebrew).
Frequently asked questions
Can black-and-white film deteriorate?
Yes, in the base: acetate develops vinegar syndrome after about 40–50 years at room temperature (IPI, NFPF).
Can faded colour be brought back?
Largely: rebalancing the three dye layers restores their ratio. What has vanished completely cannot be invented.
Why not project Kodachrome?
The Library of Congress reports significant fading within about 10 minutes of projection.
How should colour film be stored?
Cool, dry and dark at 20–50 percent humidity (NFPF); 15°F cooler delays vinegar syndrome by 150 years (IPI).
