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Topic: 70mm Magnetic Sound Formats

Gordon McLeod
Film God

Posts: 9532
From: Toronto Ontario Canada
Registered: Jun 99

posted 09-13-2000 05:32 AM

What was almost as bad was ORC used to put the screws into the platter decks with a magnetised screw gun
That was the source of many a ticking soundtrack

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John Walsh
Film God

Posts: 2490
From: Connecticut, USA, Earth, Milky Way
Registered: Oct 1999

posted 09-13-2000 10:33 AM

I used to use one of those magnometer(sp?) to see if the sprockets, etc. were magnetized- but then I'd also check all the simple tools left out (screwdrivers, pliers, etc.)

I woked in a place where the installer put one of the rectifers right next to the rewind table (a reel placed on the left spindle was less than 6 inches away.) Duh!

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Gordon McLeod
Film God

Posts: 9532
From: Toronto Ontario Canada
Registered: Jun 99

posted 09-13-2000 06:59 PM

I use a magnetometer too and always found it amazing how cinecanica Vic8 always put a 50 gauss magnetic in the oil pump windo 1/2" away from the inboard edge of the magfilm passing through the penthouse

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John Walsh
Film God

Posts: 2490
From: Connecticut, USA, Earth, Milky Way
Registered: Oct 1999

posted 09-13-2000 08:51 PM

Now, now Gordon.. you know they come out..

Although, after removing that magnet, that screw-in sight glass would leak oil. I had to tighten...loosen..tighten...etc. until it stopped leaking...

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Thomas Hauerslev
Master Film Handler

Posts: 451
From: Copenhagen, Denmark
Registered: Aug 2000

posted 09-14-2000 01:41 AM

Regarding Martin´s note about "Out of Africa" and the hump on the soundtrack. I have to admit that I was that person. I have sort of left my signature on that print. It happend in 1986 at ABCinem+D where I splized it together after getting it from the 9 month run at Imperial Bio.

Regards, Thomas

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John Pytlak
Film God

Posts: 9987
From: Rochester, NY 14650-1922
Registered: Jan 2000

posted 09-14-2000 06:37 AM

Thomas, how could you, of all people, do such a thing to a precious 70 mm print?

The important thing is to learn from our mistakes, so they won't happen again. Sharing these "oops" experiences here will help others avoid the same mistake.

For example, a good friend who is a projectionist at a small 3-plex near Rochester just called, and told me that he accidently "dumped" a print on the floor while trying to move it by himself (no platter reel or clamps on the print). Took him from 8:00pm until 1:00am to put it back together. He had read my comment here about "moving an unclamped print unassisted is like Russian Roulette -- 5 times out of 6 you get away with it, the 6th time, you have a real mess on the floor", but he was rushed, and did it the wrong way anyway.

Good news was that it was on Kodak VISION print film with the anti-static backing, so little dirt was picked up from the floor. But the print is now full of the splices he needed to untangle it.

------------------
John P. Pytlak, Senior Technical Specialist
Worldwide Technical Services, Entertainment Imaging
Eastman Kodak Company
Research Labs, Building 69, Room 7419
Rochester, New York, 14650-1922 USA
Tel: 716-477-5325 Fax: 716-722-7243
E-Mail: john.pytlak@kodak.com

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Dick Vaughan
Phenomenal Film Handler

Posts: 1032
From: Bradford, West Yorkshire, UK
Registered: Jul 2000

posted 09-14-2000 07:10 AM

Well Thomas you just reinforced the argument for DTS 70.Don't think you can magnetise that!!

Anyway what you did is nothing compared to someone I heard of who stored 70mm prints behind the scren next to a sub bass speaker.

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Gordon McLeod
Film God

Posts: 9532
From: Toronto Ontario Canada
Registered: Jun 99

posted 09-14-2000 10:06 AM

John they all got removed real fast and some silicone stopped any leaks but what a dumb pace to put it in the first place

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Brad Miller
Administrator

Posts: 17775
From: Plano, TX (36.2 miles NW of Rockwall)
Registered: May 99

posted 09-14-2000 02:00 PM

Actually, there is a right way and a wrong way to pick up a dumped print off of the floor. I'll have to get some junker print and intentionally push it off to make a "how to" page. Done properly, no one should even know it was dumped.

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Ben Wales
Jedi Master Film Handler

Posts: 602
From: Southampton. England
Registered: Jul 99

posted 09-14-2000 02:53 PM

There is a Art House cinema in Ireland that just have installed two Philips DP70's and a Potts 35/70 Platter.

Are these suitable to run old 70mm prints?.

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Aaron Sisemore
Flaming Ribs beat Reeses Peanut Butter Cups any day!

Posts: 3061
From: Rockwall TX USA
Registered: Sep 1999

posted 09-14-2000 03:19 PM

>>two Philips DP70's and a Potts 35/70 Platter. Are these suitable to run old 70mm prints?<<

Absolutely. Though i would lean toward a Christie AW370 for the platter, the Potts should do fine. and you can't get much better than the DP70...

Aaron

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