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telephotographic lens [1 record]
Record 1 - internal organization data 1998-12-14
Record 1, English
Record 1, Subject field(s)
- Photography
Record 1, Main entry term, English
- telephotographic lens
1, record 1, English, telephotographic%20lens
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
- telephoto lens 2, record 1, English, telephoto%20lens
correct
- telephoto 3, record 1, English, telephoto
correct
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
A long focal-length lens with a narrow angle of vision that magnifies the size of objects from a distance. 4, record 1, English, - telephotographic%20lens
Record number: 1, Textual support number: 1 CONT
A telephoto is a long-focus lens incorporating some light diverging elements at the camera end. These have the effect of making the lens-image distance less than the focal length would otherwise require. The telephoto is therefore shorter than a lens of conventional design, although it has the same focal length. Both give images of identical size. 5, record 1, English, - telephotographic%20lens
Record 1, French
Record 1, Domaine(s)
- Photographie
Record 1, Main entry term, French
- téléobjectif
1, record 1, French, t%C3%A9l%C3%A9objectif
correct, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
- télé-objectif 2, record 1, French, t%C3%A9l%C3%A9%2Dobjectif
correct, masculine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 DEF
Objectif dont d'angle de champ est réduit par rapport à l'angle de l'objectif normal. 3, record 1, French, - t%C3%A9l%C3%A9objectif
Record number: 1, Textual support number: 1 CONT
Grâce à sa construction particulière, un téléobjectif offre une longue focale pour un tirage relativement faible. Sa formule optique est (...) un élément convergent à l'avant, un élément divergent à l'arrière. Pour une distance focale identique, un téléobjectif est moins protubérant, est moins éloigné du film qu'une longue focale ordinaire. Principe du téléobjectif - L'élément divergent donne de AB (image du sujet normalement formée par l'élément convergent) une image grossie A'B'. 4, record 1, French, - t%C3%A9l%C3%A9objectif
Record 1, Spanish
Record 1, Textual support, Spanish
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