Poitevin alphonse (64 risultati)

Paperback or Softback. Condizione: New. Trait� de l'Impression Photographique Sans Sels d'Argent (�d.1862). Book.

Condizione: New.

Condizione: New.

Condizione: New.

Paperback or Softback. Condizione: New. Trait� Des Impressions Photographiques. Book.

Condizione: As New. Unread book in perfect condition.

Condizione: New.

Condizione: New.

Condizione: New. In English.

Condizione: New. In English.

Condizione: New. In English.

Condizione: New.

Condizione: As New. Unread book in perfect condition.

Condizione: New. In English.

Taschenbuch. Condizione: Neu. Neuware - This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it.This work is in the 'public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.…

Condizione: New. KlappentextrnrnWORK IS IN FRENCH This book is a reproduction of a work published before 1920 and is part of a collection of books reprinted and edited by Hachette Livre, in the framework of a partnership with the National Library of France, prov.

Condizione: New.

Kartoniert / Broschiert. Condizione: New.

Buch. Condizione: Neu. Neuware - This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it.This work is in the 'public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.…

Gebunden. Condizione: New.

Couverture souple. Condizione: Satisfaisant. COUVERTURE TRES USEE ET DECHIREE . MANQUE DOS .MAIS BEL INTERIEUR .ETAT D 'USAGE ROUSSEURS .

PAP. Condizione: New. New Book. Shipped from UK. THIS BOOK IS PRINTED ON DEMAND. Established seller since 2000.

PAP. Condizione: New. New Book. Shipped from UK. THIS BOOK IS PRINTED ON DEMAND. Established seller since 2000.

PAP. Condizione: New. New Book. Delivered from our UK warehouse in 4 to 14 business days. THIS BOOK IS PRINTED ON DEMAND. Established seller since 2000.

PAP. Condizione: New. New Book. Delivered from our UK warehouse in 4 to 14 business days. THIS BOOK IS PRINTED ON DEMAND. Established seller since 2000.

PAP. Condizione: New. New Book. Shipped from UK. THIS BOOK IS PRINTED ON DEMAND. Established seller since 2000.

PAP. Condizione: New. New Book. Delivered from our UK warehouse in 4 to 14 business days. THIS BOOK IS PRINTED ON DEMAND. Established seller since 2000.

Soft cover. Condizione: Good. [Title translated roughly as ""Photograph on gelatine, a means of obtaining very transparent and very transparent negatives, which can be carried over a great number of times on ordinary photographic paper."] Offered in the weekly issue of the "Comptes Rendus" for 27 May 1850, pp 647-652 in the issue of pp 637-672. Offered with the original front wrapper, detached. "Alphonse Louis Poitevin (1819 1882) was a French chemist, photographer and civil engineer who discovered the lightsensitive properties of bichromated gelatin and invented both the photolithography and collotype processes. He has been described as "one of the great unheralded figures in photography". In the 1850s he discovered that gelatin in combination with either potassium or ammonium bichromate hardens in proportion to the amount of light that falls on it. This discovery, significant for its capacity to facilitate the mass production of photographs, was later used by numerous figures such as Josef Albert, Joseph Wilson Swan, Paul Pretsch and Charles Nègre to develop subsequent photographic printing processes such as heliogravure, photogravure, collotype, autotype and carbon print. see Martin Parr and Gerry Badger. The Photobook: A History, Volume I. p. 19. Overall quote: wikipedia. ++++ ALSO: A +LANDMARK+ paper by Blanquart-Evrard, "Photographie sur papier. Moyen d'obtenir l'image a la chambre noire sur paper sec, pp 663-665. Helmut Gernsheim (History of Photography) notes that this publication by Blancquart-Evrard (along with his 1851 paper "Photographie sur papier" in 1851 "marked the beginning of a new era of photography" by introducing a "very considerable improvement of Talbot's calotype process". The calotype process offered very contrasty images and were lacking in half-tone sensibilities; "the paper ("wet process") approach by Blancquart-Evrard, which provided a (paper) surface impregnated with silver nitrate (and therefore much more light-sensitive), was much more able to reveal tone and detail".…

Leatherbound. Condizione: NEW. Leatherbound edition. Condition: New. Language: French Leather Binding on Spine and Corners with Golden leaf printing on spine. Reprinted from 1883 edition. NO changes have been made to the original text. This is NOT a retyped or an ocr'd reprint. Illustrations, Index, if any, are included in black and white. Each page is checked manually before printing. As this print on demand book is reprinted from a very old book, there could be some missing or flawed pages, but we always try to make the book as complete as possible. Fold-outs, if any, are not part of the book. If the original book was published in multiple volumes then this reprint is of only one volume, not the whole set. IF YOU WISH TO ORDER PARTICULAR VOLUME OR ALL THE VOLUMES YOU CAN CONTACT US. Sewing binding for longer life, where the book block is actually sewn (smythe sewn/section sewn) with thread before binding which results in a more durable type of binding. THERE MIGHT BE DELAY THAN THE ESTIMATED DELIVERY DATE DUE TO COVID-19. Pages: 310 Pages: 310. …

HRD. Condizione: New. New Book. Shipped from UK. THIS BOOK IS PRINTED ON DEMAND. Established seller since 2000.