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Re: Shift lenses

  • From: P3D John Bercovitz <bercov@xxxxxxxxxxx>
  • Subject: Re: Shift lenses
  • Date: Mon, 26 Aug 96 14:47:36 PDT
John B. requests:

>> Obviously I need shift lenses so I can position the projector 
>> up high above the audience.  Recommendations? 

Bill Carter responds:

> How about placing the projectors high and using thin wedge prisms to 
> correct for the keystone effect? I believe that's how the "pros" do it.

Really?  I hadn't heard of this.  I don't see how it works.  Do you
know anything more about it?

Thanks,
John B


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