At 02:33 PM 9/27/2002 -0400, you wrote: > >> John Cremati wrote: >> I have my doubts that these thicknesses will work in a 20x24 inch format.. >> If a thin aluminum sheet is used in the mammoth sizes it will have to be >> made of highly tempered aluminum alloy and very ridged.. In the book >> "Primitive Photography " A guide to making Cameras , Lenses and Calotypes, >> they specify 1/8 inch thick luan as dark slide material for just a 8x10 >> format...... > Is there anyone on the list that has experience in such large formats as the 20x24 ?
Guys, RE the relative hugeness of 24 in. sq. film, I now believe thinking in terms of conventional dark slide materialis is probably wrong. Using luan may be a very good idea. Also think about black foam core. It is terrific for experimental camera bodies. A stack of large film holders would weigh quite a bit. Also There should be a container that will hold them flat - like a an old wood tennis racket clamp. AZ Maker of Lookaround panoramic camera. http://www.panoramacamera.us or keyword.com lookaround _______________________________________________ Cameramakers mailing list [EMAIL PROTECTED] http://rmp.opusis.com/mailman/listinfo/cameramakers
