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Thread: How a lens is made

  1. #1

    Default How a lens is made

    Always wondered why lens are so expensive?

    http://www.youtube.com/watch?v=X7_wL0ZZi6k

    I found this to be very educational. It looks like a really complicated process to make a lens. Anyone know what brand is being made?

  2. #2
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    Default Re: How a lens is made

    interesting video
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  3. #3

    Default Re: How a lens is made

    Quote Originally Posted by hantsung View Post
    Always wondered why lens are so expensive?

    http://www.youtube.com/watch?v=X7_wL0ZZi6k

    I found this to be very educational. It looks like a really complicated process to make a lens. Anyone know what brand is being made?
    It was engraved on the barrel of the lens. JML Optical.
    http://www.jmloptical.com/
    Last edited by lsisaxon; 28th January 2008 at 05:34 PM.

  4. #4
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    Default Re: How a lens is made

    Great and informative find! Thanks for sharing!!

  5. #5

    Default Re: How a lens is made

    thanks for posting such a fantastic link!

  6. #6
    Member Parka's Avatar
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    Default Re: How a lens is made

    I've new sense of respect for my 1755 and the lens makers

    Check out how Canon lens are made, via machines

    http://www.youtube.com/watch?v=ZUKjA...eature=related
    Last edited by Parka; 28th January 2008 at 06:26 PM.

  7. #7
    Moderator diver-hloc's Avatar
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    Default Re: How a lens is made

    Great Video.... thxs for sharing.

    But I'm surpise that they don't use 'clean room' condition when assembling the lens

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  8. #8
    Member/Tangshooter Redsun's Avatar
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    Default Re: How a lens is made

    fantastic video!
    thanks for sharing!

  9. #9

    Default Re: How a lens is made

    Quote Originally Posted by diver-hloc View Post
    Great Video.... thxs for sharing.

    But I'm surpise that they don't use 'clean room' condition when assembling the lens
    So am I! I tought at least the operators should be donning smocks.

    I actually caught the actual program on SCV (can't remember if it was Discovery or NatGeo) and then saw this thread. So I guess TS must have recorded it and put it up for us all? Thanks!
    Last edited by lsisaxon; 29th January 2008 at 04:44 PM.

  10. #10

    Default Re: How a lens is made

    it looked kind'a low tech to me. Iirc, the individual lens element will need to undergo controlled cooling, ie allowed to cool down XX degree every day from red hot to ensure superb optical quality.

    But I think the documentary looked quite old liao. Must have been shot decades ago

  11. #11

    Default Re: How a lens is made

    there was a Kurosawa film made in WWII involving a lens factory ("Ichiban Utsukushiku" or "The Most Beautiful"), ... they were basically using the same process as well...

  12. #12

    Default Re: How a lens is made

    Quote Originally Posted by lsisaxon View Post
    It was engraved on the barrel of the lens. JML Optical.
    http://www.jmloptical.com/
    JML Optical, a precision optics company based in Rochester, NY (where I attended university) designs, manufactures and distributes precision optical components for everything from photo copying machines to medical instruments.

    JML Optical served mainly domestic (in the US, with clients such as Fuji Xerox, Eastman Kodak, General Electric, Hughes Aerospace and 3M) and international OEM customers in the commercial and government sectors with high quality optics in prototype through high volume quantities.
    Last edited by photobum; 30th January 2008 at 10:22 PM.

  13. #13

    Default Re: How a lens is made

    Cool! I didnt know that this is how lens is made. Thanks for posting this up.

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