Moving image review (1988]-)

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35 mm. 16 mm. 8 mm. Super 8 HOW DO I IDENTIFY FILM? Do Not Project It! All film shrinks with age and becomes fragile. Projecting shrunken film risks permanent damage by ripping sprocket holes, stressing splices and scratching the image. You may have unique, irreplaceable film. Most home movie footage is camera original, which means that the film has no negative and there may be no other copies. Careful Hand Inspection Is OK It is possible to carefully unwind the first few feet of the film and learn quite a bit from inspection with a magnifying glass. Handle the film by the edges only, preferably using clean cotton gloves. Record the Following Information • What is on the can or container? Are there any notes accompanying it? • Check the condition of the film— is it brittle, do the edges curl, is there obvious damage? • Are there titles or credits? • Is the film negative or positive? Color or black & white? • Are there sprocket holes on one side or both (single or double perforations)? • Is there sound? Magnetic sound is usually a brown stripe along one side; optical sound is a black wavy pattern. Remember that the film may be wound "tails out" and you could be looking at the end. Remember also that the head and tail are usually more worn than the rest. Some Date Clues 1923 early 1930s 1931 1933 1935 early 1950s 1965 First 1 6 mm. camera for amateurs 8 mm. film available 16mm. sound film Technicolor Kodachrome — color 1 6 mm. 35 mm. safety film in wide use Super 8 available How Should I Store Film? Film benefits from constant low temperature and low humidity conditions. ) Frequent changes in temperature and humidity cause irreversible damage. Store film in clean cans laid flat. Nitrate Film Up to the early 1 950s 35 mm. film was almost always made on a cellulose nitrate base, which is highly unstable and flammable. Inspect it regularly and store in an appropriate location. In cases of advanced deterioration, nitrate film is subject to spontaneous combustion. i Vinegar Syndrome 1 6 mm. film is not nitrate based. However, it is subject to deterioration. One of the signs is acetic acid, the source of a vinegar smell. Humidity and rusty metal containers accelerate the process. Films with strong vinegar smell or visible acetic acid crystals must be isolated from other films and copied before it is too late. If you have any questions please call 207 469-0924. D C 1994 Northeast Historic Film