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Thread: Copal 0 shutter's, now 7 or 5 bladed?

  1. #1

    Join Date
    Jun 2007
    Location
    Maine, USA 04032
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    85

    Copal 0 shutter's, now 7 or 5 bladed?

    I'm curious about the Copal 0 shutter. I have a APO Symmar from the early 1990's that has an all-black Copal 0 with a 7-bladed iris. Did Copal go to a 5-bladed iris on newer shutters? If so, about when did this change take place?

    Did earlier Copal 0 shutters (with the silver speed dial) have more iris blades than 7, similar to the Compur shutters of that time?

  2. #2

    Join Date
    May 2006
    Location
    Gresham OR
    Posts
    1,369

    Re: Copal 0 shutter's, now 7 or 5 bladed?

    I have 3 Copal 0 shutters and the oldest, a 90 6,8 Grandagon has a 5 blade iris.
    The two newer, 150 Apo Sironar N and Nikon 120SW are both 7 blade iris. All 3 are black face.
    So, i believe the early Copal 0 was 5 blade and the later 7 blade.
    Nikon specific shutters may overall be different, they also rotate the speed dial the oposite way.

  3. #3
    Moderator
    Join Date
    Jan 2001
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    7,630

    Re: Copal 0 shutter's, now 7 or 5 bladed?


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