Re: Projector guidelines

[P3D William Carter <wc@xxxxxxxxxxxxxxxxxxx>]

Hiya John!
I'm still on the list?!?

> We're going to have to send you off to Betty 
>Ford's pretty soon.  (Just checking your filters.)  8-)

That filters list just keeps growing and growing.  o-)

>Now isn't that figure designed to reduce the flicker frequency to a point
>where normal movie projection rates are unnoticeable?

Huh? Don't know about that.
I've owned some pretty cheap projector heads, though none made fewer 
than two exposures per frame, and I've never seen flicker. I had one 
beauty, so rock steady that I could tell the difference between pin 
registered cameras. But, I never saw flicker under any of a variety of lamp 
house/screen distances. And, I can get pretty anal about such things.

Streaking, from mis-timed pull down, yes. That will flicker like crazy.
Tell me more?! 

>I wonder what the brightness would have to be if the determining factor
>were ghosting instead.
Give it up John, dual lens systems don't work. Just say "Don't dual it".

-- 
                wc@xxxxxxxxxxxx
    37deg 39.09'N x 122deg 29.56'W x 90'MLLW





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