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Thread: Schneider 360 f6.8 Symmar S front element loose

  1. #1

    Join Date
    Jul 2008
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    London
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    114

    Schneider 360 f6.8 Symmar S front element loose

    Hi

    I have just bought a Schneider 360 f6.8 Symmar S on a compur 3 shutter
    Its very clean and gives very nice sharp images
    the only thing is that the front element can move about 1mm
    if I point the lens down I can push it up
    Is this normal ?
    can I just screw in the front ring to tighten it up
    its not loose but that looks like what one might do

    thanks

    robin

  2. #2

    Join Date
    Mar 2006
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    Pittsfield, MA
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    784

    Re: Schneider 360 f6.8 Symmar S front element loose

    Pretty much what needs to be done, though I would wonder if the person who you bought it from knew that the ring was loose as well.

  3. #3

    Join Date
    Jun 2002
    Posts
    9,487

    Re: Schneider 360 f6.8 Symmar S front element loose

    The front retaining ring can simply become loose over time. If you look very closely there probably are two tiny slots or notches on opposite sides of the ring. There are tools that can engage these slots to provide the screw-twisting you need. Or you can very carefully do it yourself using a small-tipped blade or knife , alternating sides, and only tightening it "snug" not "tight". If you're really shaky send it off, but if you're reasonably calm and level-headed you can do it safely.

  4. #4

    Join Date
    Oct 2007
    Posts
    601

    Re: Schneider 360 f6.8 Symmar S front element loose

    I would get a spanner wrench just be safe. It is a good thing to have when you need one.

  5. #5
    runs a monkey grinder Steve M Hostetter's Avatar
    Join Date
    Jul 2008
    Location
    Beech Grove Indiana
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    2,293

    Re: Schneider 360 f6.8 Symmar S front element loose

    If when you tip the lens and you can hear glass clanging together you could have lens seperation
    I've had this happen in a 480mm 8.4 Schneider

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