Hi William, For these purposes the black paint used for writing black-boards is ideal. These days the writing boards are usually green, but the black paint is still widely available in The Netherlands.It is intended to make the chalc crayon leave behind a trace by its roughness and give maximum contrast by not reflecting any light. What more can you ask for.
-----Oorspronkelijk bericht----- Van: pinhole-discussion-admin@p at ??????? [mailto:pinhole-discussion-admin@p at ???????]Namens William Erickson Verzonden: donderdag 11 juli 2002 13:47 Aan: ppinhole discussion Onderwerp: [pinhole-discussion] fogging in half-cylinder cameras. I have made a half cylinder camera for 8x10 negatives. I find that I have far more trouble with fogging due to interior reflection than I have ever seen with cylindrical cameras where the negative takes up only the back half of the cylinder. In this camera, the angle of view approaches 180 degrees, with the edges of the neg butted right up against the front of the camera. I haven't had fully matte paper to use, and haven't tried film yet, but I will. Has anyone used the polymax fine art paper that is "double matte"? I sent for some. has anyone tried some sort of a baffle system that might quench some of the random bouncing around of light? _______________________________________________ Post to the list as PLAIN TEXT only - no HTML Pinhole-Discussion mailing list Pinhole-Discussion@p at ??????? unsubscribe or change your account at http://www.???????/discussion/
