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» Film-Tech Forum ARCHIVE   » Operations   » Film Handlers' Forum   » When did Strong switch from blue to red? (Page 1)

 
This topic comprises 3 pages: 1  2  3   
Author Topic: When did Strong switch from blue to red?
Brad Miller
Administrator

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

- posted 11-14-2002 04:11 PM      Profile for Brad Miller   Author's Homepage   Email Brad Miller       Edit/Delete Post 
I am talking about the Century line of projectors. Specifically the shutter box window. When they were blue, it was nice. Now that they are red, it is blinding! There is something about that red light that when you glance at it shoots pain into your eyes. To give you an idea how bright this is, I put 2 inch Permacel gaffer's tape over those windows to give the operators some headache relief, and you can STILL see that red light coming through. (Of course at this level it is no longer offensive to the eyes.)

I'm sure John will have some link with an explanation as to why this color is so painful to look at. While I am interested in such an explanation, I am more interested when and why Strong changed and if they still offer the blue glass.


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Daryl C. W. O'Shea
Film God

Posts: 3977
From: Midland Ontario Canada (where Panavision & IMAX lenses come from)
Registered: Jun 2002

- posted 11-14-2002 05:15 PM      Profile for Daryl C. W. O'Shea   Author's Homepage   Email Daryl C. W. O'Shea   Send New Private Message       Edit/Delete Post 
Maybe Strong was concerned that with the tight turn around times labs face that they didn't want to expose film that hadn't fully developed yet to non-red light. Yeah, I know.


I'd actually like to know too, blue was nice. At least it has to be better than red.

What's with Cinemeccanica's green ones? It's not even dark green, they're super bright, not that any colour is going to be really dim with a 5KW bulb behind it, but light green.


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Ken Layton
Phenomenal Film Handler

Posts: 1452
From: Olympia, Wash. USA
Registered: Sep 1999

- posted 11-14-2002 05:35 PM      Profile for Ken Layton   Email Ken Layton   Send New Private Message       Edit/Delete Post 
Funny, but several Century projectors in my area have green glass. I suspect that the glass on these projectors got broken at one time and were replaced with green welders glass.

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Daryl C. W. O'Shea
Film God

Posts: 3977
From: Midland Ontario Canada (where Panavision & IMAX lenses come from)
Registered: Jun 2002

- posted 11-14-2002 05:44 PM      Profile for Daryl C. W. O'Shea   Author's Homepage   Email Daryl C. W. O'Shea   Send New Private Message       Edit/Delete Post 
I've used quite a few Century's with green glass that was OK, but the green in the V5's are pretty bright, all seven of them.

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Pete Naples
Phenomenal Film Handler

Posts: 1565
From: Dunfermline, Scotland
Registered: Feb 2001

- posted 11-14-2002 05:50 PM      Profile for Pete Naples   Email Pete Naples   Send New Private Message       Edit/Delete Post 
Never seena blue one!

All the Century Centuries, ORC Centuries, Strong Centuries and Century clones (Westar) I've ever seen have red glass. Can't say I've ever found it too bright either.

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Paul G. Thompson
The Weenie Man

Posts: 4718
From: Mount Vernon WA USA
Registered: Nov 2000

- posted 11-14-2002 06:38 PM      Profile for Paul G. Thompson   Email Paul G. Thompson   Send New Private Message       Edit/Delete Post 
Green ones are what I am used to seeing on Simplex and Brenkert peojectors. Blue on Century and Cinecita.

I remember the blue windows an Ashcraft arc lamps. They were hard on the eyes!! I think I have seen some red ones in arc lamps, too.

Peerless and Brenkert used green ones, and they are easy on the eyes. I wish they would stay with green. I would like to know the reason why Strong wants to change color of the glass.

Did you ever see any color other than green in an arc welding mask? I haven't.....


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Christopher Seo
Jedi Master Film Handler

Posts: 530
From: Los Angeles, CA
Registered: Jun 99

- posted 11-14-2002 07:11 PM      Profile for Christopher Seo   Email Christopher Seo   Send New Private Message       Edit/Delete Post 
The older (1970) JJs I worked with had pink glass. Don't know if they started out red.... I worked with some MSCs built perhaps seven years ago that had the red glass. It wasn't overly bright with 3K lamps. Personally I like the red light, makes for a cool eerie look.

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Joe Redifer
You need a beating today

Posts: 12859
From: Denver, Colorado
Registered: May 99

- posted 11-14-2002 07:27 PM      Profile for Joe Redifer   Author's Homepage   Email Joe Redifer   Send New Private Message       Edit/Delete Post 
Brad-

Didn't ya know? With the new red light coming from the projector, you are supposed to set up mirrors and bounce the light down into the optical scanner for the sound. That way you never have to worry about changing LEDs in the sound head.

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Daryl C. W. O'Shea
Film God

Posts: 3977
From: Midland Ontario Canada (where Panavision & IMAX lenses come from)
Registered: Jun 2002

- posted 11-14-2002 07:30 PM      Profile for Daryl C. W. O'Shea   Author's Homepage   Email Daryl C. W. O'Shea   Send New Private Message       Edit/Delete Post 
Maybe you could bounce the red light through a DLP array to use as your hearing impaired system.


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John Pytlak
Film God

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

- posted 11-14-2002 07:44 PM      Profile for John Pytlak   Author's Homepage   Email John Pytlak   Send New Private Message       Edit/Delete Post 
I think the INTENSITY of the light is what's bothersome, rather than the color. Perhaps certain projectors have sight glasses with lower density, so the light is much brighter? Pat Moore may know the recent history of the sight glass supply that Century uses.

------------------
John P. Pytlak, Senior Technical Specialist
Worldwide Technical Services, Entertainment Imaging
Research Labs, Building 69, Room 7525A
Rochester, New York, 14650-1922 USA
Tel: +1 585 477 5325 Cell: +1 585 781 4036 Fax: +1 585 722 7243
e-mail: john.pytlak@kodak.com
Web site: here Kodak Website

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Gordon McLeod
Film God

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

- posted 11-14-2002 08:16 PM      Profile for Gordon McLeod   Email Gordon McLeod   Send New Private Message       Edit/Delete Post 
Actually brad you are missing a business oportunity set up a "red light" district in the booth

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Brad Miller
Administrator

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

- posted 11-14-2002 08:34 PM      Profile for Brad Miller   Author's Homepage   Email Brad Miller       Edit/Delete Post 
If nothing else, this thread is certainly entertaining!

Actually John may have that pegged. For kicks I am going to bring in one of my blue pieces from the JJs in the screening room and put them in to at least compare the difference between a 2K vs. a 4K.

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Matthew Bailey
Master Film Handler

Posts: 461
From: Port Arthur,TX
Registered: Sep 2000

- posted 11-14-2002 09:40 PM      Profile for Matthew Bailey   Email Matthew Bailey   Send New Private Message       Edit/Delete Post 
How about purple or dark purple glass? Or the same kind of glass that they used in old yellow-brown drug or other-colored antique glass bottles? Some antique glass bottles that people collect are way darker at a possibly comfortabe brightness if you cut one up & install it on the shutter housing.

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Daryl C. W. O'Shea
Film God

Posts: 3977
From: Midland Ontario Canada (where Panavision & IMAX lenses come from)
Registered: Jun 2002

- posted 11-14-2002 09:48 PM      Profile for Daryl C. W. O'Shea   Author's Homepage   Email Daryl C. W. O'Shea   Send New Private Message       Edit/Delete Post 
I'll hedge a guess that Permacel tape is easier to cut than convincing some collector to let you cut up their antique glass bottle (let alone cutting a flat piece of glass out of a round bottle).


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Josh Jones
Redhat

Posts: 1207
From: Plano, TX
Registered: Apr 2000

- posted 11-14-2002 09:51 PM      Profile for Josh Jones   Author's Homepage   Email Josh Jones   Send New Private Message       Edit/Delete Post 
I ran across a pair of Strong Utility lamps that had purple glass in them. It would make a white shirt glow like a blacklight

Josh

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