5 Mounting Originals
5–8 Edition October 1998
■ Avoidance of fingerprints
To avoid fingerprints getting on to the
transparencies, always handle the trans-
parencies using curved flat tweezers.
■ Newton rings
You can most easily recognize Newton rings
by looking directly at the transparency. If
Newton rings are present, then the mount-
ing and fixing procedure must be repeated.
■ Air bubbles
You can most easily recognize air bubbles
by looking through the scanning drum onto
the transparency with a dark background.
You can push out the air bubbles by going
over the transparency with a cloth.
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