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Author
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Topic: Help Save SEPTEMBER STORM in 3-D
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Leo Enticknap
Film God
Posts: 7474
From: Loma Linda, CA
Registered: Jul 2000
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posted 02-09-2017 12:12 AM
That's still a lot better than the 3-4 you'll find in most multiplexes (most of which don't bother to change the bulb between 2-D and 3-D presentations), and something that likely won't be improved on by anything except a dual stack system or a very big laser projector. The filter wheel systems out there absorb between roughly 60% and 90% of the light output from the xenon bulb. The Dolby system at the Aero is one of the worse ones for light absorption (though it has many good points in other respects), but the decision to buy it was made before my time and I had no input on that. At the Aero, we install and align a 7kW bulb for 3-D digital presentations (a 3kW bulb is used for 2-D), the largest the projector can take. Only special venue type projectors can take bigger ones.
The week after your screening, a Disney representative attended a tech check for rental event and was very satisfied with the 3-D light level. So was Wim Wenders when he attended a screening of Pina and did a Q & A afterwards, too, as was a co-worker of yours who attended a tech check for September Storm, at which I was present, a few days before the show. He did not indicate to me that he had a problem with the light level. We did identify a fault with the sound on your DCP (mono audio duplicated on channels 1 through 3 - should have been on 3 only), and a corrected version was made for the show, but that did not affect the light level, obviously.
I do know that theoretically, we're supposed to deliver 14ft-l per eye per SMPTE specs, but in the real world that's about as likely to happen as everyone sticking to 65mph on the 10 in the middle of the night. That's why most studios grade their DCPs for 4ft-l projection, and Disney for 6. 14 simply cannot be achieved without dual stack projectors (both top end models) or big ass laser, and I doubt if you'll find many repertory/rerelease/arthouse venues around which can offer that.
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