History of 35mm negatives film

There were many film formats used in still photography.  Among amateur consumers, the most popular format over the years was 35mm film.

The 35mm film used in still photography was introduced by Kodak in 1934.  Among users of analog film formats (as opposed to digital photography, which is now the dominant picture-taking format), the 35mm film format was the most popular consumer film size.

35mm Negative Cassettes

Individual rolls of 35mm film were encased in single-spool, metal canisters (or “cassettes”), which did not admit light, and allowed cameras to be loaded in daylight.  The 35mm film was clipped or taped to a spool and exited via a slot lined with “flocking (sort of a velvety material).  The end of the film was tapered on one side to form a “leader,” which aided photographers in inserting and loading the 35mm film into the camera.

Removing used 35mm film from the camera was typically done by using a manual lever or automated button which rewound the 35mm film back into the canister before opening the camera. Photographers never opened their 35mm camera while performing this function, as any light would damage the exposed film and it would not be able to be processed.

How many 35mm negatives could a canister of 35mm film hold?

35mm film was available in a wide variety of lengths.  The standard full length 35mm film was 36 exposures, which would then create 36 individual 35mm negatives.  While 20 exposure rolls were at one time the most popular shorter exposure length, 12 and 24 exposure length rolls became more dominant over time.

Professional photographers — who bought their film in very long lengths — could, of course, load custom lengths into the film cassettes to meet their professional needs.

Convert 35mm negatives to digital files

A number of digital transfer companies now provide services to consumers which allow you to transfer 35mm negatives into digital formats.  MemoryHub uses the highest quality negative scanner – the Kodak HR500 – to scan your negatives at a high standard resolution of 3000 PPI (Pixels per inch), and delivers high-quality JPG images on Archive-quality Data DVDs.  These digital images can then be copied onto your computer and used as you use any images generated by your digital camera.

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