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Size of filter for 19mm cannon fl lens


I have a cannon 19mm fl lens and lens holder for lens.What size filter will fit lens and lens holder?


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September 15, 2002

 

Jon Close
  That old lens was Canon's first superwide angle to use retrofocus design so that the mirror didn't have to be locked up in order to mount the lens. It uses a "Series IX" (or Series 9) filter, which were more often used on old movie cameras.
per http://www.marriott.u-net.com/pieces/pieces21.htm
"Series filters are glass or plastic mounted in a metal or plastic rim. There is no screw thread or other mounting; instead, the filter is designed to be held in place by a retaining ring. This retaining ring would either be part of the lens or be part of a lens hood/filter holder."

Series IX are 88.9mm (3.5") in diameter


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September 17, 2002

 
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