Exposure Values: what they are and how to use them
Fungi in photographic lens can be dangerous to your valuable equipment
Dust mites have also been seen in photographic lenses
This information is written in 1990s and pre-dates the present digital camera revolution. Some of the later film camera models are also not covered.
Feature list of some Canon EOS cameras from year 1999.
Changing film in the middle of a roll with Canon EOS cameras
Canon EOS Elan II tips: