{"meta":{"version":"2.1","_links":{"self":{"href":"https://api.vam.ac.uk/v2/object/O1411496"},"collection_page":{"href":"https://collections.vam.ac.uk/item/O1411496/"}},"images":{"_primary_thumbnail":"https://framemark.vam.ac.uk/collections/2022ND1483/full/!100,100/0/default.jpg","_iiif_image":"https://framemark.vam.ac.uk/collections/2022ND1483/","_alt_iiif_image":[],"imageResolution":"low","_images_meta":[{"assetRef":"2022ND1483","copyright":"© Victoria and Albert Museum, London","sensitiveImage":false}]},"see_also":null},"record":{"systemNumber":"O1411496","accessionNumber":"RPS.2467-2017","objectType":"Camera lens","titles":[{"title":"Camera lens belonging to Julia Margaret Cameron","type":"generic title"}],"summaryDescription":"","physicalDescription":"Cylindrical camera lens made of brass and glass with one large knob protruding from the side and another smaller nob on top.","artistMakerPerson":[],"artistMakerOrganisations":[{"name":{"text":"Jamin","id":"AUTH347390"},"association":{"text":"manufacturer","id":"x33306"},"note":""}],"artistMakerPeople":[],"materials":[{"text":"brass","id":"AAT10946"},{"text":"metal","id":"AAT10900"},{"text":"glass","id":"AAT10797"}],"techniques":[],"materialsAndTechniques":"Brass, metal and glass","categories":[{"text":"The Royal Photographic Society","id":"THES281081"},{"text":"Photographs","id":"THES48910"}],"styles":[],"collectionCode":{"text":"DOP","id":"THES291628"},"images":["2022ND1483"],"imageResolution":"low","galleryLocations":[{"current":{"text":"LVLF","id":"THES49656"},"free":"","case":"LNC","shelf":"SH1","box":""}],"partTypes":[[{"text":"photographic lenses","id":"AAT22665"}],[{"text":"photograph","id":"AAT46300"}]],"contentWarnings":[{"apprise":"","note":""}],"placesOfOrigin":[{"place":{"text":"Paris","id":"x29068"},"association":{"text":"made","id":"x28654"},"note":""}],"productionDates":[{"date":{"text":"1840-1860","earliest":"1840-01-01","latest":"1860-12-31"},"association":{"text":"made","id":"x28654"},"note":"The name ‘Jamin’ indicates the lens was made before 1860 as Mossieur Jamin’s company was taken over by his plant manager Darlot that year"}],"associatedObjects":[],"creditLine":"The Royal Photographic Society Collection at the V&A, acquired with the generous assistance of the National Lottery Heritage Fund and Art Fund.","dimensions":[{"dimension":"Height","value":"14","unit":"cm","qualifier":"","date":{"text":"","earliest":null,"latest":null},"part":"","note":""},{"dimension":"Depth","value":"14","unit":"cm","qualifier":"","date":{"text":"","earliest":null,"latest":null},"part":"","note":""},{"dimension":"Length","value":"30","unit":"cm","qualifier":"","date":{"text":"","earliest":null,"latest":null},"part":"","note":""}],"dimensionsNote":"","marksAndInscriptions":[{"content":"'JAMIN / PARIS / J A L P[?]'","inscriber":{"name":{"text":"","id":""},"association":{"text":"","id":""}},"date":{"text":"","earliest":null,"latest":null},"description":"","interpretation":"","language":"","medium":"","method":"","position":"","script":"","translation":"","transliteration":"","type":"","note":"engraved on brass tube"},{"content":"'H or T O P'","inscriber":{"name":{"text":"","id":""},"association":{"text":"","id":""}},"date":{"text":"","earliest":null,"latest":null},"description":"","interpretation":"","language":"","medium":"","method":"","position":"","script":"","translation":"","transliteration":"inscribed on lens ring","type":"","note":""}],"objectHistory":"The Jamin lens consisted of two separate groups of elements. It had rack and pinion focussing and a fixed aperture of f 3.6, a design invented by the Hungarian mathematician Joseph Max Petzval in 1840.\r\n\r\nBrusius, Mirjam (2010).  'Impreciseness in Julia Margaret Cameron's Portrait Photographs', History of Photography, 34:4, 342-355.\n\nIt is known that the Jamin lens was given to the RPS by Alvin Landon Coburn.\n\nHarrison, Graham.  'Julia Margaret Cameron and Britain's Photographic Heritage', Photo Histories, 19 April 2017\n","historicalContext":"","briefDescription":"Petzval type camera lens made by Jamin of Paris belonging to Julia Margaret Cameron","bibliographicReferences":[],"production":"","productionType":{"text":"","id":""},"contentDescription":"","contentPlaces":[],"associatedPlaces":[],"contentPerson":[],"associatedPerson":[{"text":"Cameron, Julia Margaret","id":"C5001"}],"contentOrganisations":[],"associatedOrganisations":[],"contentPeople":[],"associatedPeople":[],"contentEvents":[],"associatedEvents":[],"contentOthers":[],"contentConcepts":[],"contentLiteraryRefs":[],"galleryLabels":[],"partNumbers":["RPS.2467-2017"],"accessionNumberNum":"2467","accessionNumberPrefix":"RPS","accessionYear":2017,"otherNumbers":[{"type":{"text":"Science Museum Group accession number","id":"THES275235"},"number":"2003-5001-1-4"},{"type":{"text":"Royal Photographic Society number","id":"THES275233"},"number":"1929-174"},{"type":{"text":"Royal Photographic Society number","id":"THES275233"},"number":"0410"}],"copyNumber":"","aspects":["WHOLE"],"assets":[],"recordModificationDate":"2026-02-27","recordCreationDate":"2017-09-08","availableToBook":false}}