"Camera: Zeiss Box – Tengor 6x9 (home made modified) Film: ILFORD PanF Plus 50 Focal Length: 40 mm Pinhole diameter: 0.26 mm f stop: 154 Image circle: 81 mm Exp. time: 6 sec Pinhole material: http://www.semigent.hu/index-403.html Pinhole make by: http://www.rovaraszbolt.hu/?Eszk%C3%B6zeink:Rovart%C5%B1k"