Re: projection questions

From: Jason Halprin (email suppressed)
Date: Wed Mar 15 2006 - 04:29:04 PST


I'm not sure on your second question regaridng Keystoning, but am
sitting here at 6:30 in the morning trying to work out the
optics...good mental exercise.

As for xenon vs. tungsten prints, without looking at any figures I'd
guess tungsten prints are more prevalent. Filmmakers who are concerned
with tone tend to have 2 sets of prints, one for each lamp. I'm not
going to speak for Canyon, but I know that I was once asked by Dominic
if the print I was getting would be shown on a xenon or tungsten

The Ann Arbor film festival, for example clearly states on their
website that if you choose to send a 16mm print for preview it will be
watched on tungsten, and the festival will be presented on xenon...

I'll note here that it is possible to get a xenon pageant, and I
suspect many other tungsten projectors could be converted.

If anyone has more concrete information, please share...

-Jason Halprin
--- David Tetzlaff <email suppressed> wrote:

> 1) We'll be screening an experimental film (on film!) at a symposium,
> and
> we got a query from the maker asking if we wanted a print balanced
> for a
> xenon bulb or a tungsten bulb. I had never thought about this before,
> but
> obviously the two types of projectors have different CT. Is it common
> for
> prints to be made for both types of lamps? (I'd guess not...) When
> you
> rent a print from FMC, Canyon or MOMA, what CT is it most likely to
> have?
> (tungsten? something in between?) Assuming most prints are NOT
> balanced
> for Xenon, what do venues that run Xenon due to needing the
> brightness
> typically do? (just roll with it if the image is a bit too bluish???)
> 2) Our campus has a couple auditoriums I'd like to set up for 16mm
> projector, but both have booths significantly higher than the screen,
> so
> the projectors have to point down, resulting in unacceptable
> keystoning
> with a std lens setup. I've been in theaters where the booth is high
> up.
> How do they dxeal with the keystoning. I'm guessing it's some kind of
> special optics that is hard to find and obscenely expensive... Is it
> projector/lens specific? or is there some device that fits all?
> thanks for any help...
> __________________________________________________________________
> For info on FrameWorks, contact Pip Chodorov at <email suppressed>.

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For info on FrameWorks, contact Pip Chodorov at <email suppressed>.