"télé-objectif Derogy Apl. No. 3", C. 1897 - Mar 25, 2017 | Auction Team Breker In Germany
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"Télé-objectif Derogy Apl. No. 3", c. 1897

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"Télé-objectif Derogy Apl. No. 3", c. 1897
"Télé-objectif Derogy Apl. No. 3", c. 1897
Item Details
Description
"Télé-objectif Derogy Apl. No. 3", c. 1897
Derogy, Paris & Londres. No. 28443. Early tele (zoom) lens, composed of a standard Aplanat and a supplementary system, two engravings on the tube: "Tirage" = flange focal length 21–91 and "Grossissement" = magnification 3–10. Iris stop f8–f44, minor dent on front ring, everything else in excellent condition. Height of the lens extended 7 ½ in., connecting ring Ø 2 ½ in., rack-and-pinion shift. – Literature: Corrado D'Agostini, "Photographic Lenses of the 1800's in France", p. 169.

"Télé-objectif Derogy Apl. No. 3", um 1897
Derogy, Paris & Londres. Nr. 28443. Frühes Tele (-Zoom)-Objektiv, gefertigt aus einem einfachen Aplanat mit einem verschiebbaren weiteren Linsensystem. 2 Gravuren für das Ablesen der Vergrößerungsfaktoren: "Tirage" = Auflagemaß 21–91 und "Grossissement" = Vergrößerung 3–10. Irisblende f8–f44, kleine Delle im Frontring, sonst recht gut erhalten, Höhe der Optik ausgefahren 19 cm, Triebeinstellung, mit Anschlußring Ø 55 mm. – Literatur: Corrado D'Agostini, "Photographic Lenses of the 1800's in France", S. 169.

Start Price: € 240

Condition
(2–3/2–3)
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  • 24.3%

"Télé-objectif Derogy Apl. No. 3", c. 1897

Estimate €400 - €600
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Starting Price €240
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