{"id":2153589,"date":"2026-06-15T15:18:03","date_gmt":"2026-06-15T13:18:03","guid":{"rendered":"https:\/\/igmi.esercito.difesa.it\/senza-categoria\/aerial-photos-what-details-can-be-distinguished-in-a-photogram\/"},"modified":"2026-06-15T15:18:03","modified_gmt":"2026-06-15T13:18:03","slug":"aerial-photos-what-details-can-be-distinguished-in-a-photogram","status":"publish","type":"post","link":"https:\/\/igmi.esercito.difesa.it\/en\/faq\/aerial-photos-what-details-can-be-distinguished-in-a-photogram\/","title":{"rendered":"Aerial photos: What details can be distinguished in a photogram?"},"content":{"rendered":"<p>Our institute provides photographic materials as they are produced, without dealing with their specific use.<\/p>\n<p>All IGMI photograms, from 1935 to today, can be searched for and purchased online; for 75% of them, there is a low-resolution preview which, where possible, allows an initial evaluation.<\/p>\n<p>Each photogram was made with the aim of producing small and medium-scale national cartography, taken from an average height of 5000 m. By way of example, we inform you that generally on a photogram taken from that height you can distinguish 3&#215;3 m. details.<\/p>\n<p>Accuracy depends on altitude, year, weather conditions at the time of shooting and each photo has different characteristics.<\/p>\n<p>Many users find our images helpful, but it is up to the user to decide how useful they are.<\/p>\n<p>Therefore, <strong>the interpretation of photograms is exclusive to the customer<\/strong> and cannot be anticipated or evaluated by our institute, unless expressly instructed to do so by the judicial authority.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Our institute provides photographic materials as they are produced, without dealing with their specific use. All IGMI photograms, from 1935 to today, can be searched for and purchased online; for 75% of them, there is a low-resolution preview which, where possible, allows an initial evaluation. Each photogram was made with the aim of producing small [&hellip;]<\/p>\n","protected":false},"author":24,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[87422,87428],"tags":[],"class_list":["post-2153589","post","type-post","status-publish","format-standard","hentry","category-faq","category-faq-purchases"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Aerial photos: What details can be distinguished in a photogram? - Istituto Geografico Militare<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/igmi.esercito.difesa.it\/en\/faq\/aerial-photos-what-details-can-be-distinguished-in-a-photogram\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Aerial photos: What details can be distinguished in a photogram? - Istituto Geografico Militare\" \/>\n<meta property=\"og:description\" content=\"Our institute provides photographic materials as they are produced, without dealing with their specific use. All IGMI photograms, from 1935 to today, can be searched for and purchased online; for 75% of them, there is a low-resolution preview which, where possible, allows an initial evaluation. 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