During my fellowship at the National Film and Sound Archive of Australia, I inspected a large collection of 28mm films. Using my research skills, I identified several unknown titles within the collection and helped identify unique Australian films. As a part of my fellowship, I wrote a blog post about the experience:

Many of the films that I inspected were almost 100 years old, but they were all in surprisingly good condition. However, film damage and decay is not uncommon with this format. The film conservation experts at the NFSA were able to teach me new conservation methods to deal with issues that can damage these films or make handling them difficult.

As 28mm was used as a home movie format, it was especially important that it not catch fire easily. Naphthalene, a fire-retardant chemical, helped make the 28mm diacetate film safer. As these films age, however, the chemical releases and can be hazardous to inhale, so archivists must take precautions to limit their exposure.

Read more about my experience and see some examples of 28mm by reading the blog at the  NFSA website.