Hahnemuhle Photo Rag Brt Wht 310gsm - 13" x 19" 25 SheetsHahnemuhle Photo Rag Brt Wht 310gsm 13" x 19" 25 Sheets Photo Rag Bright White 310 gsm has the same smooth surface of Photo Rag 308, but has a much whiter base color which makes it ideally suited for images that demand maximum luminosity. Because of it's super white base, Phot Rag Bright White also dramatically enhances black and white images.