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Thread: Does anyone knows this lerebours lens ??

  1. #1
    Alex Timmermans
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    Does anyone knows this lerebours lens ??

    Hi all,

    does anyone knows this lens ?
    it's about 360 mm ans want to use it for 10 x 10 inch max wetplate

    thanks

    Alex




  2. #2

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    Re: Does anyone knows this lerebours lens ??

    Very nice early petzval (of course!) made in the era before Waterhouse stops. VM quotes numbers between 3,000 and 10,000 and notes that some have been retrofitted for stops. Date is probably around 1850 -55. Coverage really depends on what you want the non-central parts of the image to look like?
    Last edited by Steven Tribe; 24-Nov-2009 at 11:38. Reason: the usual - spelling

  3. #3
    Alex Timmermans
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    Re: Does anyone knows this lerebours lens ??

    Quote Originally Posted by Steven Tribe View Post
    Very nice early petzval (of course!) made in the era before Waterhouse stops. VM quotes numbers between 3,000 and 10,000 and notes that some have been retrofitted for stops. Date is probably around 1850 -55. Coverage really depends on what you want the non-central parts of the image to look like?
    Hi Steve,

    thanks for the feedback.
    I prefer sharp in the centre and "blurry" in the noncentral part of the picture.
    Doe you any idea how "fast" this lnes will be ?

    alex

  4. #4

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    Re: Does anyone knows this lerebours lens ??

    Alex, I answered some more Lerebours history on the collodion board, but you can figure the speed if you have it in hand, or ask the seller to measure the focal length, and divide that by the diameter of the front glass. That will get you pretty close.

  5. #5
    Jon Wilson's Avatar
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    Re: Does anyone knows this lerebours lens ??

    Alex, what are the measurements of your Lerebours lens? I was fortunate to pick one up from another LF'er on this forum and I believe mine to be about 7 inches f4, serial #894x. I am not sure when it was made. Does anyone have any data to match the manufacturing date with the serial #s?

    Jon

  6. #6

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    Re: Does anyone knows this lerebours lens ??

    I think you will have to search in French/German language optical books from the end of the 19th C - or get someone to do it for you! VM has only a little data. Has yours been converted to Waterhouse stops?

  7. #7

    Join Date
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    Re: Does anyone knows this lerebours lens ??

    I checked my literature and while there is a reference to Lerebours et Secretan petzvals, not much more is mentioned. They were based in Paris and started in the 1850's, that's it.

  8. #8

    Re: Does anyone knows this lerebours lens ??

    Lerebours and Secretan started together by 1846 - they were known as the Opticians to the Paris Observatory. By October 1846, Lerebours already published a book on Photography.. Traité de Photographie

    Traite de Photographie, contenant tous les perfectionnements trouvees jusqu'd ce jour, appareil panoramique. differences des foyers, gravure Fizeau, &C. Par Lerebours et Secretans, Opticiens de l'Observatoire, et de la Marine. 5me Edit,. Paris, Octobre, 1846.

    In addition, Lerebours and Secretan had published an optical catalogue in 1846...see attached...

    They also published a book on the use of microscopes 1846...see attached...

    The firm sold many optical instruments including microscopes, binocluars, glasses, and telescopes in addition to their photographic optics. Also attached is an ad from their 1853 optical catalogue regarding Portrait Lenses.

    Dan

    Antique & Classic Camera Blog
    www.antiquecameras.net/blog.html

  9. #9

    Re: Does anyone knows this lerebours lens ??

    More from http://www.europa.com/~telscope/tsfrance.txt

    LEREBOURS et SECRETAN

    Noel Jean Lerebours 1761 - 1840, worked for spectacle maker & for Louvel,
    Paris. At 18, started own business; 1789 opened shop at 69 quai de
    l'Horloge, Paris. Worked through Revolution. 1792, producing lenses for
    instruments by Etienne Lenoir. Made series of lenses for optical
    telegraphs. 1809 catalog. Produced telescope objectives 11 cm aperture,
    1816 made a 19 cm objective, 1823 a 24 cm objective, 1829 a 32 cm for Paris
    Observatory. 1836, a 15 cm Lerebours, the largest refractor in the U.S.,
    installed at Wesleyan U., Middletown, CT. Made microscopes & distance
    microscopes. Son, Nicolas Marie Paymal Lerebours 1807 - 1873, began work
    1830, continued business, 1844 completed a 38 cm, 8 m f.l., bought by
    Bureau des Longitudes; was also a very early photographer.

    Marc Francois Louis Secretan 1804 - 1867, b. Lausanne, professor of
    mathematics at Academy of Lausanne, moved to Paris 1844. 1845, L & S
    joined, used name until 1880s and beyond. Secretan became head of
    Lerebours and Secretan after 1855 retirement of Paymal. Secretan also
    issued catalogs as sole proprietor after 1860. Collaborated with William
    Eichens, important mechanical designer of telescopes. 1860s, worked with
    Leon Foucault, improved silvering techniques.

    Marc Secretan d. 1867, son, August 1833 - 1874 continued business, succeeded
    by his cousin Georges Emmanuel Secretan 1837 -1906, then Paul Victor
    Secretan in early 1900s, then mostly or solely a retail business.
    George Prin, (successor to Gautier) was absorbed into Secretan in 1934.
    Secretan in business through 1947; by 1955, although still named Secretan,
    was controlled by C. Eprey and Jacquelin since circa 1920s.

    Antique & Classic Camera Blog
    www.antiquecameras.net/blog.html

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