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I have a piece of copy (art) - it is screened (a halftone) at 133lpi.  I
need to make a positive / negative from it - at 65lpi (size not critical)
 
If I shoot the art in the camera (at 133lpi) using a contact screen at
65lpi.  I will have a moire pattern from the two interrupting patterns.
 
Question:
 
=> How do I re-screen an existing halftone into a new one at a different lpi
without getting moire?? or
 
=> How can I change a halftone so it is reproduced in the camera like
continous tone??
 
You can only use conventional vertical / horizontal camera and contact
screen for this reproduction job.
 
 
Your help is much appreciated.  Thanks!!!
 
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