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  1. Thread: Optical protractor

    by DLF
    Replies
    16
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    3,762

    Hi ballen, I can read german. But I did not...

    Hi ballen,

    I can read german. But I did not quite understand the parallax error thing.

    After some more reading, here is my version (in simpler terms): the small cap will not increase the...
  2. Thread: Optical protractor

    by DLF
    Replies
    16
    Views
    3,762

    One thing I do not understand. My protractor...

    One thing I do not understand.

    My protractor has a small cap to protect the optical visor.

    The cap has a small opening which allows reading and the manual states that it permits reading with a...
  3. Thread: Optical protractor

    by DLF
    Replies
    16
    Views
    3,762

    Thenk you for the info. Like mentioned in the...

    Thenk you for the info.

    Like mentioned in the original post, it is a copy. And you are right, it was made in the eastern part of the world, in Romania by a company called Mecanica Fina.

    And it...
  4. Thread: Optical protractor

    by DLF
    Replies
    16
    Views
    3,762

    In the mean time I found some more info related...

    In the mean time I found some more info related to this device.

    It is a copy of the Carl Zeiss Jena device.

    I have no clue if it is a clone or a licensed copy, but the build quality is super...
  5. Thread: Optical protractor

    by DLF
    Replies
    16
    Views
    3,762

    Optical protractor

    Hello,

    I just aquired a vintage optical protractor in mint condition for a killer price.

    Built in the 80s or early 90s.

    0-360 degrees measurement range with 5' resolution.

    Besides the...
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