Film ages from the moment of its production. Cellulose nitrate and cellulose acetate films are especially unstable due to the autocatalytic nature of their ageing, particularly if they have not been stored professionally for a longer term.
Cellulose nitrate’s ageing process can be so aggressive that the film image will disintegrate completely due to the strongly acidic decomposition products. Also mould and bacteria can necessitate fast action before the film will be literally devoured.
Therefore a long-term plan for the conservation of the cultural heritage film must be the first priority of a film archive.
With our longtime experience and especially altered equipment for ageing film we want to help you realize your concepts.
Analogue long-term preservation
- Long-term preservation of cellulose nitrate and cellulose acetate films
- Manual cleaning and film repairs as a preparation for printing
- Printing of 16mm & 35mm black-and-white negative and positive as well as colour negative and positive with a shrinkage of up to 2% on contact printers with wetgate (perchlorethylen)
- Printing of extremely deteriorated und shrunken 35mm and 16mm film material on an optical printer with wetgate (perchlorethylen)
- Printing of tinted and/or toned mute films via Desmet printing method
- Printing of colour prints (e.g. hand- or stencil-coloured) on internegative film material
- Cleaning of film material with mold or bacteria
- Chemical conditioning of brittle and shrunken film materials as preparation for printing
- Chemical conditioning of sticky cellulose nitrate as preparation for printing
Digitale long-term preservation
- 2K/3K/4K film scan of 16mm & 35mm black-and-white negative and positive as well as colour negative and positive depending on the condition of the material:
- with or without wetgate (Perchlorethylen)
- with or without pin registrierung
- with sprockets or capstan, the latter for example in case of exceedingly shrunken and warped material
- Fibre Channel Sensor Image Area Detection
- Digitisation of special formats like 28mm, 17,5mm, vistavision or non standardised, non perforated filmmaterial
- Colour separation film scan
Digital editing & restoration
- Density and colour correction as well as correction of discoloration
- Imitation of tinting and toning
- Creation of titles and inter titles with reference to the original
- Retouching, image stabilisation and deflickering
Digital sound restoration
- Digitisation, restoration, optimisation, conversion and metadata-management
- Long-term storage of cellulose acetate and polyester film at 14°C and 40% relative humidity
- Short-term storage (for duration of treatment) of cellulose nitrate films at 6°C and 40% relative humidity