Bob W-PDML wrote: >There's a purpose-built camera obscura here in Greenwich, by the Royal >Observatory. It's fascinating to watch. The light enters through a cupola and >is reflected onto a round viewing table. I believe it may be possible to >rotate the cupola to change the view. > >I can't imagine it being too difficult to rig something up, provided you can >get the blackout material.
Yes, I've been to see the one in Greenwich. And a couple of others, too. What I really need to know is about techniques/materials for blacking out the room and, most importantly, what size aperture (hole) I should use. -- Mark Roberts - Photography & Multimedia www.robertstech.com -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
