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Thread: French madness - World's biggest (photographic) lens?

  1. #1

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    French madness - World's biggest (photographic) lens?

    In his summary of minor French lens makers, Corrado D'Agostini talks in his enjoyable book about Benoist & Berthiot. He writes:

    "At the Universal Expo in 1900, it introduced an Aplanatic lens with 1 meter diameter and a 2 meter focus, weighing 381 kilos and cut from a piece of glass weighing 530 kilos."

    His source is a L'Industrie Francaise des Instruments de Precision report from 1901.

    I wonder if it actually worked -an F2 aplanat?

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    8x10, 5x7, 4x5, et al Leigh's Avatar
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    Re: French madness - World's biggest (photographic) lens?

    They designed it for a point-and-shoot, but the project never got off the ground.

    - Leigh
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    Re: French madness - World's biggest (photographic) lens?

    The lens for this must have come close...

    http://robroy.dyndns.info/lawrence/mammoth.html

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    Re: French madness - World's biggest (photographic) lens?

    Quote Originally Posted by Vaughn View Post
    The lens for this must have come close...

    http://robroy.dyndns.info/lawrence/mammoth.html
    Something's always bothered me about that photo. The lens looks like it was added in a retouching job. Maybe the actual lens didn't look that impressive, or maybe it wasn't mounted when they took that photo.

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    Re: French madness - World's biggest (photographic) lens?

    Quote Originally Posted by Steven Tribe View Post
    In his summary of minor French lens makers, Corrado D'Agostini talks in his enjoyable book about Benoist & Berthiot. He writes:

    "At the Universal Expo in 1900, it introduced an Aplanatic lens with 1 meter diameter and a 2 meter focus, weighing 381 kilos and cut from a piece of glass weighing 530 kilos."

    His source is a L'Industrie Francaise des Instruments de Precision report from 1901.

    I wonder if it actually worked -an F2 aplanat?
    An Aplanatic lens - http://www.optics-online.com/mnp.asp is not an Aplanat.
    One man's Mede is another man's Persian.

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    Re: French madness - World's biggest (photographic) lens?

    Quote Originally Posted by BarryS View Post
    Something's always bothered me about that photo. The lens looks like it was added in a retouching job. Maybe the actual lens didn't look that impressive, or maybe it wasn't mounted when they took that photo.
    That has always bothered me, too.

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    Re: French madness - World's biggest (photographic) lens?

    A few years ago, in the 90's, an Arab sheik had Hasselblad and Zeiss make a one of a kind lens for his nature work. That lens was hung over the Hasselblad booth at Photokina and it was longer then the showcase! And it fits a recent camera!

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    C. D. Keth's Avatar
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    Re: French madness - World's biggest (photographic) lens?

    Quote Originally Posted by Leigh View Post
    They designed it for a point-and-shoot, but the project never got off the ground.

    - Leigh
    That deserves one of these.

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    Re: French madness - World's biggest (photographic) lens?

    I remember seeing photos of that—it was quite impressive to say the least. What was it, something like a 2500mm f/2?

    Quote Originally Posted by Bob Salomon - HP Marketing View Post
    A few years ago, in the 90's, an Arab sheik had Hasselblad and Zeiss make a one of a kind lens for his nature work. That lens was hung over the Hasselblad booth at Photokina and it was longer then the showcase! And it fits a recent camera!
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    Jac@stafford.net's Avatar
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    Re: French madness - World's biggest (photographic) lens?

    Quote Originally Posted by Bob Salomon - HP Marketing View Post
    A few years ago, in the 90's, an Arab sheik had Hasselblad and Zeiss make a one of a kind lens for his nature work. That lens was hung over the Hasselblad booth at Photokina and it was longer then the showcase! And it fits a recent camera!
    Here it is: http://www.juliuselias.com/wp-conten...ss_1700_01.jpg

    And about the mammoth camera - an unretouched version: http://www.pubsignshop.com/media/pdsp-tc2528-04.jpg

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