A very early french lens engraved. LEREBOURS et SECRETAN a Paris N°7xxx. This beautiful Petzval optical design lens was made between 1853 and 1859.
This is the version with washer stop sliding in lenshood, before the Waterhouse slot system. In well preserved condition, brass body wears a lot of worn spots and has been polished in the engraved area.Rack & pinion focusing system work as they should. The glasses are in good condition with slight spots (no effect on taking picture) due to age. Both front and rear achromat are complete (2 cemented glasses on front, 2 separated by air glasses on rear). Glasses are "rice writing" engraved with the serial number on the lens (typical Lerebours et Secretan style). The washer stop is complete with the additional stop (so ability to use 4 different apertures).
Original front brass cap is included. Original wooden protective box is included. Estimated focal length: 320mm (measured from center of lens). Diamter at mounting thread: 95mm.Weigth of lens without wooden box: 2Kg. This huge early petzval covers 8x10in. A beautiful lens, genuine part of french historical photography, in working order for large format photographers and wet plate enthusiasts. Check out my other antique lens for sale. L'item "Lerebours Secretan early Petzval with washer stop, large format whole plate 8x10" est en vente depuis le samedi 14 septembre 2019.
Il est dans la catégorie "Photo, caméscopes\Photographie ancienne\Objectifs anciens". Le vendeur est "75photographica" et est localisé à/en Paris, Ile-de-France. Cet article peut être livré partout dans le monde.