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H 10
M645 Getting Started
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4 Maintenance
Cleaning the IR filter
When the H 10 M645 camera back is not attached to a
Mamiya camera, the camera back shall be protected with
the protection plate. Still dust particles can stick to the IR fil-
ter. This will degrade the image quality.
The cleaning procedure for cleaning the IR filter is described
in the guidelines for the CCD cleaning kit that came with
your camera back.
Cleaning between the CCD and the IR filter
Do not try to clean between the CCD and the IR filter!
The mounting of the IR filter is done at the factory in a high-
class clean room. This process is a very specialised process
that insures an extremely high quality of the glass surfaces
of the CCD and the IR filter. The screws for locking the IR
filter are sealed. If the seal is broken Phase One will not
guarantee for any particles between the CCD and the IR
filter.