Salted Paper Print｜鹽紙印相：早期照片能把影像直接做進紙纖維，表面因此比後來相紙更柔霧

Salted paper prints were made on paper sensitized with silver salts and commonly printed from paper negatives. Because the image is formed within the paper fibers rather than in a smooth baryta or resin-coated layer, surviving prints can have a matte, softly textured appearance closely tied to the paper support.

紙張、上膠、感光配方與後處理會改變外觀；不是所有早期 matte photograph 都能只憑表面判定為 salted paper print。