Chamber cleaning

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The chamber of an SLR camera is susceptible to dust brought in when lenses are changed, or present on a lens when fitted. In principle, chamber dust is not a problem, but it is a main source of dust on the sensor of digital SLRs, and can also be a reservoir for larger particles which could disrupt mirror operation.

The chamber should be periodically cleaned with a blower, though care must be taken to avoid introducing more dust. It can also be swabbed out with specialist cleaning materials, such as those from Visible Dust.