Film-Tech Cinema Systems
Film-Tech Forum ARCHIVE


  
my profile | my password | search | faq & rules | forum home
  next oldest topic   next newest topic
» Film-Tech Forum ARCHIVE   » Operations   » Film Handlers' Forum   » Age of CinemaScope Lenses

   
Author Topic: Age of CinemaScope Lenses
Bill Enos
Film God

Posts: 2081
From: Richmond, Virginia, USA
Registered: Apr 2000


 - posted 03-23-2003 11:50 PM      Profile for Bill Enos   Email Bill Enos   Send New Private Message       Edit/Delete Post 
How old are Bausch & Lomb CinemaScope I with the red ring anamorphic lenses? How good/bad are they compared to todays equivalent.

 |  IP: Logged

Matt Hale
Expert Film Handler

Posts: 123
From: Vancouver, Canada
Registered: Dec 2002


 - posted 03-24-2003 12:03 AM      Profile for Matt Hale   Author's Homepage   Email Matt Hale   Send New Private Message       Edit/Delete Post 
If the ones you have are anything like the ones I have, I believe they are the original CinemaScope adapters (not a complete lens) from the 50s. The general consensus seems to be that modern scope lenses are better (not to mention lighter!) and do not seem to have the yellowing problem that the older B&Ls had. Check out The Widescreen Museum for a history of CinemaScope and its lenses.

 |  IP: Logged

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

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


 - posted 03-24-2003 02:13 AM      Profile for Aaron Sisemore   Email Aaron Sisemore   Send New Private Message       Edit/Delete Post 
On most if not all of the B&L anamorphics if you look closely inside the front element along the edge you should find the manufacture date stamped on the inside of the barrel near the front element.

These lenses were assembled with optical cement between elements. By now the vast majority of them have had that cement turn yellow casting a yellowish tint to the light passing thru it. It's easy to check the amount of yellowing by looking thru the lens at a known pure white object, light, or wall.

Compared to modern anamorphics, the B&Ls are heavier and even with totally clear optics don't pass as much light as the current anamorphics out there.

-Aaron

 |  IP: Logged

Mitchell Dvoskin
Phenomenal Film Handler

Posts: 1869
From: West Milford, NJ, USA
Registered: Jan 2001


 - posted 03-24-2003 12:15 PM      Profile for Mitchell Dvoskin   Email Mitchell Dvoskin   Send New Private Message       Edit/Delete Post 
The "red" ringed ones were the older lenses. The silver ring ones are slightly newer, and of better quality. Neither is up to todays standards, although a "silver ring" B&L in good condition will put out a nice picture.

/Mitchell

 |  IP: Logged

Scott Norwood
Film God

Posts: 8146
From: Boston, MA. USA (1774.21 miles northeast of Dallas)
Registered: Jun 99


 - posted 03-24-2003 12:20 PM      Profile for Scott Norwood   Author's Homepage   Email Scott Norwood   Send New Private Message       Edit/Delete Post 
I have a silver-ring one which is dated 1956. It makes an excellent paperweight.

Are all of the red-ring lenses older than this?

The B&L lenses that I've seen vary widely in quality. Some put out a great picture (not comprable with the latest ISCO or Schneider lenses, but still really good) and some are godawful. We had a really crappy pair at the Williamsburg Theatre (now replaced with ISCO Blue-Stars, I think). The Columbus Theatre has a very good pair, as does the Avon Cinema (the other art house in Providence, RI).

 |  IP: Logged

Darren Briggs
Master Film Handler

Posts: 371
From: York, UK
Registered: Dec 2001


 - posted 03-24-2003 12:57 PM      Profile for Darren Briggs   Author's Homepage   Email Darren Briggs   Send New Private Message       Edit/Delete Post 
Ive got a RED ring lens which is serial No DR2756, but can't see a date marked on it any where. On the outside it says Projector Attechment II

Darren

 |  IP: Logged

John Pytlak
Film God

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


 - posted 03-24-2003 01:15 PM      Profile for John Pytlak   Author's Homepage   Email John Pytlak   Send New Private Message       Edit/Delete Post 
Cemented elements were also more prone to heat damage. Compare both the color and sharpness across the screen using the SMPTE 35-PA (RP 40) test film. Use a print with a full range of colors and tones to see how much the old lens degrades contrast compared to a modern anamorphic lens.

 |  IP: Logged



All times are Central (GMT -6:00)  
   Close Topic    Move Topic    Delete Topic    next oldest topic   next newest topic
 - Printer-friendly view of this topic
Hop To:



Powered by Infopop Corporation
UBB.classicTM 6.3.1.2

The Film-Tech Forums are designed for various members related to the cinema industry to express their opinions, viewpoints and testimonials on various products, services and events based upon speculation, personal knowledge and factual information through use, therefore all views represented here allow no liability upon the publishers of this web site and the owners of said views assume no liability for any ill will resulting from these postings. The posts made here are for educational as well as entertainment purposes and as such anyone viewing this portion of the website must accept these views as statements of the author of that opinion and agrees to release the authors from any and all liability.

© 1999-2020 Film-Tech Cinema Systems, LLC. All rights reserved.