Canon Drop-in Type PL-C 52mm Filter WI or WII?

Discussion in '35mm Cameras and Accessories' started by haring, Jun 3, 2013.

  1. haring

    haring Member

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    I am looking into buying a Canon Drop-in Type PL-C 52mm Filter for my 200mm lens.

    What is the difference between the old version of this filter and the new version (WII) of it?

    Is there any optical difference?

    Thanks so much!