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Thread: Lens filter size?

  1. #1

    Lens filter size?

    I bought used a Rodenstock Sironar-N 1:5.6 135 mm MC lens. By my very imprecise measurement, the filter thread diameter appears to be either 39 mm. or 40.5 (pr obably the latter). Can anyone confirm the size of the filter thread on this le ns or point me to a database where I could find such information? Thanks for an y help.

  2. #2

    Join Date
    Nov 1999
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    Lens filter size?

    Douglas,

    my Rondenstock catalogue shows 40.5x0.5 filter thread.

  3. #3
    Robert A. Zeichner's Avatar
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    Feb 1999
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    Lens filter size?

    Yes, 40.5 appears to be the size. Check out the website at http://www.rodenstockoptics.com/viewcam_index.htm There's a chart that should help.

  4. #4

    Join Date
    Nov 1999
    Location
    Tacoma,WA
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    127

    Lens filter size?

    my Rodenstock catalogue agrees ...

  5. #5

    Lens filter size?

    And my 40.5 to 49mm step-up ring fits perfectly on my Caltar II-N 135/ 5.6 (same lens). Looks unanimous. Excellent lens, by the way.

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