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lighting_notes [2007-06-12 12:56] – external edit 127.0.0.1lighting_notes [2007-06-12 13:21] (current) – nik
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 we did an experiment with a light and a different lens (36 degrees) and found that at 15.4m we did an experiment with a light and a different lens (36 degrees) and found that at 15.4m
 we have 8.5mm on the gobo is 1.00m on the wall. we now use a proportion of we have 8.5mm on the gobo is 1.00m on the wall. we now use a proportion of
-tangents to get that the gobosize we need is tan(18)/tan(2.5) * 8.5mm = 63mm.#+tangents to get that the gobosize we need is tan(18)/tan(2.5) * 8.5mm = 63mm.
  
 We then double checked this with the gobo calculator at  http://www.gobogroup.com/members/a_members/imagecalculator.html We then double checked this with the gobo calculator at  http://www.gobogroup.com/members/a_members/imagecalculator.html
  • lighting_notes.1181653013.txt.gz
  • Last modified: 2007-06-12 13:21
  • (external edit)