The promise was absolute: coat a deteriorating nitrate film reel in Diamant-film, and it becomes a quasi-immortal artifact. But perfection has a hidden flaw:

A digital restoration artist reviews the automated pass. Because cracks often mimic fine background details (like tree branches or architectural lines), human oversight prevents "falses" (accidental erasure of real film detail).

If you see a crack, do not panic. Heat the area with a hair dryer for 20 seconds. If it shrinks, it is a scratch healing. If it grows, it is a true crack—seek a professional patch immediately. Delaying repair allows moisture to reach the paint, leading to rust under the film, which is a far worse restoration nightmare.