I thought, why not make a topic where everyone can post a link to this or that material on photography and photographic equipment, which is appropriate to show to members of this photo community. For example, today in one of the comments I gave a link to a video about cleaning a camera sensor from dust, but if the participant's work gets a freeflight, no one will see my comment with a link, but I would like many to see this information and many will find it useful.
so-
About particles of debris on the camera sensor.
Do not clean the sensor with a T-shirt. Only crazy photo maniacs do that :)

www.youtube.com/watch?v=tMGZlxzU5MU