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Topic: Is the flat DTS 'Digital Experience' tag printed too high?

Gordon McLeod
Film God

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

posted 08-17-2000 09:23 AM

What is the concesis about the printing of the Schnieder and the THX test film. Is it also printed too high?

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John Wilson
Film God

Posts: 5438
From: Sydney, Australia.
Registered: Dec 1999

posted 08-18-2000 01:51 AM

Sorry Gordon...we don't have those

can't comment.

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Brad Miller
Administrator

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

posted 08-18-2000 05:16 AM

I don't have the Schneider, but will check that THX loop.

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Karen Hultgren
Master Film Handler

Posts: 492
From: Agoura Hills, CA, USA
Registered: Mar 2000

posted 08-23-2000 04:09 PM

If someone needs a replacement log film (trailer), please email me at

khultgren@dtsonline.com

Karen at DTS

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Carl King
Expert Film Handler

Posts: 199
From: Saint John, New Brunswick, Canada
Registered: Mar 2000

posted 09-11-2000 07:43 AM

Michael

I too have noticed the DTS announcement strip has framing problems. Thanks to John's expetise I know have a possible reason. I also notice that some trailers exhibit the same problem. The opening logo for the GET CARTER trailer is the same way while the rest of the trailer seems fine.

Maybe someone in quality control at the lab fell down on the job. I wonder if it would get any better if projectionist started complaining directly instead of just to their managers. The e-mail addresses of the distributors are readily available I'm sure

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John Pytlak
Film God

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

posted 09-11-2000 07:57 AM

The 0.005 inch vertical shift that sometimes happens on a bi-directional printer is normal and not "someone falling down on the job" at the lab. A larger shift would not usually be due to anything the lab did, but rather in production (camera composition or opticals).

------------------
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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Brad Miller
Administrator

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

posted 09-11-2000 01:32 PM

John,

Can you give us a more practical measure for the vertical pitch? Let's say we're projecting a flat film on a 20 foot high screen. Roughly how far off would that be in inches?

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John Pytlak
Film God

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

posted 09-11-2000 02:12 PM

Brad:

SMPTE 195 specifies the image height for 1.85:1 "flat" as 0.446 inches. Projected on a 20-foot high screen, the linear magnification is (20 x 12) / 0.446 = 538.

The expected vertical shift in image position on the print due to bi-directional printing is (0.078 - 0.073) = 0.005 inches, due to the difference in perforation height between BH-1866 negative and KS-1870 print perforating.

538 x 0.005 inches = 2.7 inches vertical shift would normally be expected on your 20-foot screen between heads-to-tails and tails-to-heads contact printing.

What are you finding?

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Brad Miller
Administrator

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

posted 09-11-2000 03:17 PM

Worse than that sometimes from reel to reel.
On registration, it is insane. I'll have to go down with a measuring tape and get you some numbers to play with. Bring It On was a print with pathetic registration.

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John Walsh
Film God

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

posted 09-11-2000 07:07 PM

I know this has nothing to do with what JP and Brad are talking about, but if you frame up "Bring It On" just a little during the scene where Kirsten Dunst is dreaming she has no top on, you will have a lesson on why it is important to frame correctly.

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John Wilson
Film God

Posts: 5438
From: Sydney, Australia.
Registered: Dec 1999

posted 09-15-2000 02:48 AM

I would have thought that would be a very good reason to frame incorrectly

Unless of course you're telling us she really has clothes on! (please let the latter be untrue!)

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John Walsh
Film God

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

posted 09-15-2000 11:03 PM

Why, Mr. Wilson, this is a professional motion picture news group.

Which means; maintain a professional decorum as you pass that Jagermeister and move that framing knob.....

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