{"id":"ambrotipo-retrato-vidrio","nombre":{"en":"Ambrotype glass portrait","es":"Ambrotipo, retrato sobre vidrio"},"categoria":"Fotografía histórica","epoca":"1854–1865","origen":"Estados Unidos y Europa","poco_usado":5,"paleta":["#121110","#3c3835","#8a8176","#c2b8a6","#e3dccb","#9c7a4a"],"en":{"resumen":"The ambrotype is a photographic portrait on glass created with wet collodion, patented in the United States in 1854 and very popular until the mid-1860s in the United States and Europe. An underexposed negative image, placed against a black background, is seen as a positive. Cheaper than the daguerreotype, it democratised family and military portraits. It is unmistakable for its delicate glass, deep blacks, milky greys, irregular edges, small areas of damage and presentation in a case with a brass frame.","vocabulario_visual":"Seated or standing busts, oval cut-outs, hinged thermoplastic or leather cases, brass mats and preservers. Serious faces, direct gaze, centre-parted hair, dark dresses with white collars, suits, military uniforms, brooches and books held as symbols of respectability. Thin, uneven line at the edge of the emulsion; no drawn ornament beyond the mat. Predominantly black, charcoal, milky grey and warm off-white, with tiny touches of pink on cheeks and gold on jewellery. The visual motif is the face emerging from darkness, intimate and fragile, made to be held in the hand.","composicion":"Centralised, frontal or three-quarter bust portrait, with the head near the top third and much empty space around the shoulders. The sitter is framed by an oval or rectangular brass mat inside a hinged case. Fixed, symmetrical and very brief poses because of the long exposure: clasped hands, a book or a hand on a chair to maintain stillness. Plain dark backdrop, no scenery or only a studio chair or column. The gaze tends to be direct and solemn.","textura_y_tecnica":"A sheet of glass was coated by hand with collodion, sensitised, exposed in the camera while still wet and developed immediately. Underexposed, the negative appears positive against black varnish, fabric or paper. The surface shows uneven borders, peeling emulsion, fine cracks, dust, bubbles and sometimes cheeks or jewellery tinted by hand in pink or gold. It is protected under glass, with a metal mat, inside a small case.","tipografia":"Not applicable.","por_que_poco_usado":"Models tend to confuse it with the daguerreotype, tintype and generic sepia photography. Its effect depends on subtle physical damage, the glass and the black backing, rather than on a recognisable costume. Reviving it today contributes intimacy, fragility and real materiality: a unique object to keep, not an infinite digital image.","errores_al_imitarlo":"Apply a sepia Instagram filter or uniform film grain. Give it the mirror shine of a daguerreotype. Use perfect skin, modern studio lighting, smiles showing teeth, and sharp clothing from today. Add excessive cracks, stains and scratches over the entire image. Make it full colour or dress it up with lace frames, letters and steampunk decoration.","ideas_hoy":["Exhibition poster for a museum or historical novel: a contemporary face printed as an ambrotype, oval brass mat and generous black space.","Identity for a portrait studio or glass and analogue photography workshop: black case, milky grey and an oval frame as a logo.","Historical video game set during the United States Civil War: character portraits as keepsakes in cases that open and close in the inventory."]},"es":{"resumen":"El ambrotipo es un retrato fotográfico sobre vidrio creado con colodión húmedo, patentado en Estados Unidos en 1854 y muy popular hasta mediados de la década de 1860 en Estados Unidos y Europa. Una imagen negativa subexpuesta, colocada sobre fondo negro, se percibe como positiva. Más barato que el daguerrotipo, democratizó el retrato familiar y militar. Es inconfundible por su vidrio delicado, sus negros profundos, grises lechosos, bordes irregulares, pequeños daños y la presentación en estuche con marco de latón.","vocabulario_visual":"Bustos sentados o de pie, recortes ovalados, estuches con bisagra de cuero o material termoplástico, marcos y protectores de latón. Rostros serios, mirada directa, cabello partido al centro, vestidos oscuros con cuello blanco, trajes, uniformes militares, broches y libros como símbolos de respetabilidad. Línea fina e irregular en el borde de la emulsión; sin ornamento dibujado más allá del marco. Predominan negro, carbón, gris lechoso y blanco cálido, con toques mínimos de rosa en mejillas y oro en joyas. El motivo visual es el rostro que emerge de la oscuridad, íntimo y frágil, hecho para sostenerse en la mano.","composicion":"Retrato de busto centrado, frontal o de tres cuartos, con la cabeza cerca del tercio superior y mucho aire alrededor de los hombros. El modelo se enmarca en un óvalo o rectángulo de latón dentro de un estuche con bisagra. Poses fijas, simétricas y muy contenidas por la exposición prolongada: manos cruzadas, un libro o una mano en la silla para mantenerse quieto. Fondo oscuro liso, sin paisaje o solo con silla o columna de estudio. Mirada directa y solemne.","textura_y_tecnica":"Se cubría a mano una placa de vidrio con colodión, se sensibilizaba, se exponía en la cámara aún húmeda y se revelaba de inmediato. Al quedar subexpuesto, el negativo parece positivo contra barniz, tela o papel negro. La superficie muestra bordes desiguales, emulsión desprendida, grietas finas, polvo, burbujas y a veces mejillas o joyas coloreadas a mano en rosa u oro. Se protege bajo cristal, con marco metálico, dentro de un estuche pequeño.","tipografia":"No aplica.","por_que_poco_usado":"Los modelos tienden a confundirlo con el daguerrotipo, el ferrotipo y la fotografía sepia genérica. Su efecto depende de daños físicos sutiles, del vidrio y del fondo negro, no de un disfraz reconocible. Recuperarlo hoy aporta intimidad, fragilidad y materialidad real: un objeto único para guardar, no una imagen digital infinita.","errores_al_imitarlo":"Aplicar un filtro sepia de Instagram o grano de película uniforme. Darle el brillo especular del daguerrotipo. Usar piel perfecta, iluminación moderna de estudio, sonrisas con dientes y ropa actual nítida. Añadir grietas, manchas y rayones excesivos sobre toda la imagen. Hacerlo a todo color o adornarlo con marcos de encaje, letras y decoración steampunk.","ideas_hoy":["Cartel de exposición museística o novela histórica: un rostro actual impreso como ambrotipo, óvalo de latón y mucho negro alrededor.","Identidad para un estudio de retrato o taller de fotografía analógica y vidrio: estuche negro, gris lechoso y marco ovalado como logotipo.","Videojuego histórico ambientado en la Guerra Civil de Estados Unidos: retratos de personajes como recuerdos en estuches que se abren y cierran en el inventario."]},"prompt_en":"Ambrotype glass portrait of a young woman in 1860s dress, seated three-quarter bust pose against a plain dark studio backdrop, wet collodion on glass, black backing, milky gray highlights, deep black shadows, oval brass mat, hand-tinted rose cheeks, fine cracks, peeling emulsion at irregular edges, solemn expression, soft window light, intimate nineteenth-century keepsake photograph","palabras_prompt":["ambrotype portrait","wet collodion on glass","black-backed glass negative","milky gray highlights","oval brass mat","hinged portrait case","hand-tinted cheeks","peeling emulsion edges","solemn direct gaze","1860s studio portrait"],"evitar_en_prompt":["sepia instagram filter","daguerreotype mirror shine","generic film grain","full color photograph","modern studio portrait","steampunk frame"],"referencias":["The Metropolitan Museum of Art, collection of ambrotype portraits","Library of Congress, Prints & Photographs Division, collection of ambrotype portraits"],"nota_cultural":"","ejemplos":["cma-439422","cma-159882","cma-159642","cma-159471","cma-155989","cma-154195","cma-154075","cma-154072"],"escrita_por":"muse-wonder-1.0"}