Cooke Series Xv Convertible Anastigmat 6,8/312 Mm, C. - Oct 31, 2020 | Auction Team Breker In Germany
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Cooke Series XV Convertible Anastigmat 6,8/312 mm, c.

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Cooke Series XV Convertible Anastigmat 6,8/312 mm, c.
Cooke Series XV Convertible Anastigmat 6,8/312 mm, c.
Item Details
Description
'Cooke Series XV Convertible Anastigmat 6,8/312 mm, c. 1930-40
Taylor-Hobson, England. Later version without engraving inside on border of front lens, no. 307771, convertible lens set with 8 glass-air surfaces 6,8/12 ¼ in., image format exactly for 8 x 10 in., the original sunshade is needed for sharpness at the picture-corners, this minimizes starting coma by vignetting. For application of the single lenses on 8 x 10 in., front lens 16/26 ½ in. an extension of approx. 21 in. and aperture of 44 is need, for back lens 12,5/19 in. an extension of approx. 20 in. and aperture 32 is needed, because color coma on border starts. Single lenses are good for 5 x 7 in., on 8 x 10 in. strong stopping down is needed. All 4 lens parts can be screwed. With adapter ring, can be used as mounting ring, with caps and leather case. Ansel Adams used this kind of lens for his famous photograph "Moonrise over Hernandez". Important user lens in good condition!

'Cooke Series XV Convertible Anastigmat 6,8/312 mm, um 1930-40
Taylor-Hobson, England. Späte Ausführung ohne Innenbeschriftung, Nr. 307771, Satzoptik mit 8 Glas-Luftflächen 6,8/312 mm, Bildkreis genau für 8 x 10 in. Die Original-Sonnenblende ist zur Bildschärfe nötig, um durch Vignettierung am Bildrand das Koma zu mindern. Bei 8 x10 in. Anwendung der einzelnen Linsen, für die Frontlinse 16/67 cm sind ein Auszug von ca. 53 cm und Blende 44 nötig, bei Rücklinse 12,5/48 cm sind ein Auszug von ca. 51 cm und Blende 32 nötig, da Farbkoma zu Rand. Einzellinsen auf jeden Fall für 13 x 18 cm gut, bei 8 x 10 in. aber starke Abblendung. Alle 4 Linsenteile schraubbar. Mit Zwischenring (kann als Anschraubring dienen), Deckeln und Lederköcher. Ansel Adams schuf mit einer Optik dieses Typs seine berühmte Aufnahme "Moonrise over Hernandez". Gesuchte Anwenderoptik in gutem Zustand!

Start Price: EUR 600

Condition
(3/2-)
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Cooke Series XV Convertible Anastigmat 6,8/312 mm, c.

Estimate €1,000 - €1,200
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Starting Price €600
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