Bryson Posted March 2, 2008 Share Posted March 2, 2008 Does anyone know of an easy ready reckoner for those irritating lekos that are stated in "6x...whatever"? ie: What is the beam angle of a 6x9, a 6x12, a 6x16 and a 6x22? ....and for bonus points, what's wrong with using the beam angle? Seriously! :D Link to comment Share on other sites More sharing options...
Cormac Posted March 2, 2008 Share Posted March 2, 2008 6 x 9 is 37deg6 x 22 is 11deg6 x 16 is 19deg6 x 12 is 26deg these figures are correct but as most of those lamps are getting long in tooth at this stage be careful if it is a crucial part of your show.I think and am open to correction is the 6 x 9 refers to the lenses which in for example a 6 x 9 would have a 6 inch diameter and 9 inch focal length, ETC source 4 just refer to the focal length for example 37deg.I'm not sure if this is the reply you were looking for. Regards C Link to comment Share on other sites More sharing options...
woody74 Posted March 2, 2008 Share Posted March 2, 2008 ....and for bonus points, what's wrong with using the beam angle? Seriously! :DWelcome to the Wonderful World of Altman Stage Lighting... Gads. -w Link to comment Share on other sites More sharing options...
LeeStoddart Posted March 3, 2008 Share Posted March 3, 2008 [pedant]ETC source 4 just refer to the focal length for example 37deg.The number on the ETC S4 lens tube is the beam angle not the focal length[extreme_pedant]ETC make a 36degree lens tube not a 37degree[/extreme_pedant][/pedant] :o Link to comment Share on other sites More sharing options...
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