Negativ

Negativ (lot. negativus — manfi);

1) tasviri fotografiest, ki dar on rangi qitahoi siyohu safed va rangai obekt baraksi rangi asli meboshad. Dar Negativ joyhoi safedi obekt siyoh va joyhoi siyokhi on safed metoband. Dar Negativi ranga ran­gi obekt bo rangi ilovagiash (masalan, rangi kabud bo rangi surkh, rangi sabz bo rangi zard va gayra) ifoda meyobad;

2) fotoplastinkaest, ki tasvirash chappa meboshad. Baroi hosil namudani tasviri negativi Negativro dar mahluli makhsus zohir menamoyand, bo yorii fiksaj (odatan, bo tiosulfati natriy — NajSjOs) mustahkam menamoyand, meshuyand va mekhushkonand. Badi dar mahluli makh­sus kor kardani Negativ tasviri pozitivi, yane tasviri rostai obekt ho­sil megardad (nigared Pozitiv).