{"id":"photogravure","name":"Photogravure","ja":"フォトグラヴュール","era":"19th century–present","family":"凹版印刷","source":{"title":"MoMA — Photogravure","url":"https://lb.moma.org/techniques/photogravure"},"essence":"写真などの像を写真化学的な工程で凹版へ移し、インクで紙へ刷る技法。連続的に見える濃淡と細部を、印刷インクと紙の表情で見せる。写真のネガから刷っても銀塩写真そのものではなく、平版系のコロタイプや商業用の輪転グラビアとも文脈を分けて読む。","cues":["写真に由来する細部と階調","紙へ沈む濃いインクの黒","細かな粒の連続した濃淡","版の像と紙面の関係"],"intents":["静けさ","高級"],"pair":["collotype","aquatint"],"study":["Alfred Stieglitz — photogravures","Photographic image transferred to intaglio","MoMA — Bourgeois photogravures"],"avoid":"セピア色や版の縁だけで判定しない。技法の記録を確認し、後年の復製や銀塩写真を同じ作例として扱わない。","no":772,"kind":"技法","works":["フォトグラヴュールの作例を、近接する版画技法と比較する展示・教材","線、階調、紙の関係を実作品の技法記録から検討する出版"],"recipe":{"type":"作品の文字と後から加える説明を分け、技法・作者・年代を画面外へ整理する。","layout":"像の黒・中間調・白を比較し、細部が黒に埋まらない調子にする。","material":"所蔵館の技法記録と実物の紙・インクを確認し、画面の色だけから材料を決めない。"},"colors":["#E1D5BF","#403B35","#8D8071"],"motif":"print","collection":"Dictionary expansion 51","addedAt":"2026-10-05","reference":{"status":"verified","pageUrl":"https://lb.moma.org/techniques/photogravure","credit":"MoMA — Photogravure","gallery":[{"imageUrl":"https://commons.wikimedia.org/wiki/Special:FilePath/Kitty%20Stieglitz%2C%20Central%20Park%2C%20New%20York%20MET%20DP343185.jpg?width=640","pageUrl":"https://commons.wikimedia.org/wiki/File:Kitty%20Stieglitz%2C%20Central%20Park%2C%20New%20York%20MET%20DP343185.jpg","credit":"Alfred Stieglitz, Kitty Stieglitz, Central Park, New York, 1901 — photogravure, Metropolitan Museum of Art — Wikimedia Commons / CC0"}]},"en":{"essence":"A photomechanical intaglio method that transfers a photographic image to a plate and prints it in ink. Fine detail and apparently continuous tones acquire the character of paper and ink. It is distinct from a silver photograph, planographic collotype and the industrial context of rotary gravure.","cues":["Photographically derived detail","Rich printing-ink blacks","Fine grain carrying tonal changes","Plate image in relation to paper"],"avoid":"A sepia palette or plate border alone proves nothing. Check the recorded printing process and distinguish later reproductions.","works":["Exhibitions and teaching that compare Photogravure with neighbouring print techniques","Publications studying lines, tones and paper through documented works"],"recipe":{"type":"Keep lettering in the work separate from added labels; place medium, artist and date outside the image.","layout":"Compare blacks, midtones and highlights so that dark areas retain useful detail.","material":"Check the collection medium record and the paper and ink; do not infer materials from screen colour alone."}},"links":{"page":"https://indexstyle.org/styles/photogravure","json":"https://indexstyle.org/api/styles/photogravure","designSpec":"https://indexstyle.org/styles/photogravure/design.md","imagePrompt":"https://indexstyle.org/styles/photogravure/prompt.txt"},"usage":{"license":"CC-BY-4.0","licenseName":"Creative Commons Attribution 4.0 International","licenseUrl":"https://creativecommons.org/licenses/by/4.0/","attribution":"IndexStyle — https://indexstyle.org","attributionUrl":"https://indexstyle.org","scope":"Original IndexStyle text and structured data. Reference images, quoted works, and third-party material are excluded and retain their own rights."}}