{"product_id":"2940156740420","title":"Film speed","description":"Film speed is the measure of a photographic film's sensitivity to light, determined by sensitometry and measured on various numerical scales, the most recent being the ISO system. A closely related ISO system is used to measure the sensitivity of digital imaging systems. Relatively insensitive film, with a correspondingly lower speed index, requires more exposure to light to produce the same image density as a more sensitive film, and is thus commonly termed a slow film. Highly sensitive films are correspondingly termed fast films.","brand":"Euprint press Limited","offers":[{"title":"Default Title","offer_id":47300584014064,"sku":"2940156740420","price":1.18,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/7593\/9824\/files\/2940156740420_p0.jpg?v=1764087002","url":"https:\/\/shop-qa.barnesandnoble.com\/products\/2940156740420","provider":"Barnes \u0026 Noble (DEV)","version":"1.0","type":"link"}