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"Super-Takumar 1:3.5/13"

Discussion in 'Antiques and Collecting' started by DBP, May 3, 2018.

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  1. May 3, 2018 #1
    DBP

    DBP Member

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    I acquired a lens with this marking today. It is clearly a 135, but there is no indication of any prior mark where the "5" should be, and all the markings are engraved. Has anyone heard of lenses with the missing "5"?
     
  2. May 4, 2018 #2
    BradS

    BradS Subscriber

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    may we see a photo of the mystery lens?
     
  3. May 4, 2018 #3
    AgX

    AgX Member

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    It would be interesting to learn how lenses were engraved.
    Small series likely were engraved manually on a tuntable with a milling device coupled to a pantograph reading a stencil. So a letter or figure could have been missed. But how was it done one large scale?
     
  4. May 11, 2018 #4
    OP
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    DBP

    DBP Member

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    super-takumar 3.5 135 missing 5.JPG
     
  5. May 12, 2018 #5
    paul ewins

    paul ewins Member

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    Typos and missing characters in the engravings show up from time to time. Normally it seems to be just one unit here and there but there does appear to be a whole batch of 6x7 helicoid extension tubes that were engraved with HERICOID.
     
  6. May 14, 2018 #6
    Fixcinater

    Fixcinater Member

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    I have an Olympus 38mm f/1.9 A to-s (Yes, the U is missing from Auto). Same as yours, no signs of damage...just a missing letter.
     
  7. May 14, 2018 #7
    ic-racer

    ic-racer Member

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    Is it a 13cm focal length rather than 13.5cm?
    Screen Shot 2018-05-14 at 9.18.57 AM.png
     
    Last edited: May 14, 2018
  8. May 14, 2018 #8
    OP
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    DBP

    DBP Member

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    Not as far as I can tell. And no "cm" mark.
     
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