Silver gelatin paper negative scanned and inverted. Calumet CC-401 4 x 5 . 1942 Vintage Graflex Optar 6 3/8" f 4.5. Tetenal Vario matt paper for negative. I have some serious dust issues with the new holders for this camera or it could be my new darkroom being a bit dusty now I have air being sucked in as well as expelled....But hey...I still like it.