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This topic comprises 3 pages: 1 2 3
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Topic: What happened to my tail leader?
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Scott Norwood
Film God

Posts: 8146
From: Boston, MA. USA (1774.21 miles northeast of Dallas)
Registered: Jun 99
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posted 06-30-2004 03:41 PM
jhawk--you rewind the reels before inspecting them? Doesn't that risk a) a bad mid-reel splice that falls apart and causes film to dump on the floor (or inside the Goldberg machine), b) a tail leader that is taped to the reel hub, or c) other film damage? I don't really know, as I've never used this method, but I've never had any trouble inspecting the film in whatever orientation it arrived and then rewinding it if necessary.
Brad--how many theatres actually have platter reels? I don't know of any. I bet that changeover houses (including commercial theatres, screening rooms, special venues, etc.) far outnumber platter houses with platter reels. I love the concept, but no theatre that I know is about to spend several hundred dollars on one. And what is this about two rewind benches? I've seen that in large (10+ screens) multiplexes, but they are usually located in different parts of the booth, not all together.
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John Hawkinson
Film God

Posts: 2273
From: Cambridge, MA, USA
Registered: Feb 2002
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posted 06-30-2004 08:39 PM
Scott: Generally it's not a problem.
a) Inside the Goldberg it just stops. No big deal. (Remember that accelleration is almost nil once the reel has started going, so there's very little force. It has to be an almost nonexistant splice to be a problem.)
b) Generally taped to the reel hub the tape just peels off. Just as if you're running on a projector and taped to the reel hub. I suppose it might put some excess tension on the last foot of leader, but "that's what it's there for."
c) The only possibility I can think of is what Brad asked about -- misaligned masking tape splices that cause the post-splice film stock to get squeezed against the flange. But this is not a problem.
So what's the rationale? Well, basically, if things are in a hurry during inspection (posit an inspection immediately before a pre-screening), the rewind step is a fixed delay (approximately -- if really in a hurry one can rewind on the rewind bench faster than the Goldberg can). It's convenient to put the fixed delay first, because you never know how long manual inspection of the reel is going to take.
Sometimes it's a breeze. But if it drags out and takes longer and longer, it's great to be able to pull it off the rewinder and thread it up just in time, rather than having to wait to rewind it.
Now I'm curious what Steve does, though.
If you guys are so curious, why not ask Goldberg how many platter reels they've sold. I bet they'd share a ballpark figure (100, 1000, 10,000, etc.).
--jhawk
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