I have a scene coming up involving the video projection of archival
footage on a 5 by 12 screen. The production is once again out of
money. Any pointers towards how many lumens I should insist on or
any hint towards a particular LCD projector or where to get it in
the NYC area. I will be shooting with 5218 at 24 fps. In theory
I should have no issues with roll bar or flicker. Any Warnings regarding
this, since I am looking to get into the day without a synch box.
Thank You very much.
Oliver Bokelberg writes:
>I will be shooting with 5218
at 24 fps. In theory I should have no issues >with roll bar or
I've never shot a video projection screen with a cine camera. With
a video camera it's pretty bullet proof, but high shutter speeds
can induce some pulsing or flicker. In my experience you want to
avoid anything faster than about 1/250 sec... but my experience
is too limited for me to know how consistent
various projectors are in that regard, vis-a-vis brand, model or
type of chip.
(Frame rate isn't an issue -- it has to do with the chip's modulation
frequency, which is much higher than the frame rate.)
Marin County, CA
>I have a scene coming up involving
the video projection of archival >footage on a 5 by 12 screen.
I had several shots of this kind on a feature I shot last year.
Used 500 ASA stock with a 4000 lumen LCD projector and it was more
than bright enough.
In fact, if it's a really dark scene you might get away with a 2-3000
lumen projector...but we went with the 4000 and ND'ed it down a
stop or so.
Hope this helps
Contact Bruce Fritzberg at PSL (formerly Back Ground Engineers)
When I shot the sales piece for E Network just after the
Time/Warner merger, we shot a lot of projections on different surfaces
and projected behind TVs in the shot, etc. I forget the lumens but
they can talk stops and EI's. He's a good man to deal with and very