obscurification

I think it's probably agreed that a large room (8-10m) ends up with an 'optimal' f/# in the 2000-3000 area.
   
  Optimal is not needed for a huge wall image and the dark-acclimation time could be frustrating.
   
  What I was hoping to learn (might as well broaden the question to others who have built cameras obscura(s))....was what are typical aperture -to -wall and aperture data used.
   
  From this we can figure out a range of geometries that people find 'functional' without 'over-engineering' and questing for dimensions closer to optimal.
   
  Thanks to the person who reminded me about the spitbite.org (that still sounds nasty) info page. I was being facetious (as usual) about 'how did I do that?' - I did a lot of goofier-than-normal things the last week - getting over the flu or whatever it was.
   
  Thanks all.
   
  Murray
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Received on Sat Feb 23 07:00:20 2008