|
|
This topic comprises 3 pages: 1 2 3
|
|
Author
|
Topic: Isco Vs. Schneider ... what's your vote?
|
|
|
|
|
John Pytlak
Film God
Posts: 9987
From: Rochester, NY 14650-1922
Registered: Jan 2000
|
posted 09-26-2000 02:32 PM
Both are excellent lens manufacturers. In reality, each focal length is a slightly different design, and the film curve in the projector gate is a factor, so you should really compare lenses from different manufacturers in your actual situation, using lenses of the same focal length. The SMPTE 35-PA (RP40) is the primary test tool (resolution, field flatness, chromatic aberration, flare, etc. are easily evaluated). A reel with really critical picture content (contrasty, lots of color, lots of sharpness detail) should also be projected with each lens to compare picture quality. Doing this test, you may find that one lens is better for a curved gate or curved screen, and another would be the better choice for a straight gate or flat screen. Or one lens may be better for a large lamp (more heat deformation of the film)and the other preferred for a medium sized lamp. ------------------
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
| IP: Logged
|
|
|
|
|
|
|
|
Mark Gulbrandsen
Resident Trollmaster
Posts: 16657
From: Music City
Registered: Jun 99
|
posted 09-26-2000 05:42 PM
For the ultimate scope presentation you can't beat the Isco Blue Star 6 element lens. Its tack sharp! Have used it on Dailies a couple of times and you thought you were watching stuff that was shot in 65mm. An absolute huge difference. So huge you don't think you're watching scope.
For normal every day scope lenses I prefer the Schneider integrateds. They have the best lens adjustment and lens lock setup in the buisness. All other integrateds have certain features that allow the focus(actually astigmatism) adjustment to be thrown out quite easily into left field by some unknowing usher or candy girl. For flat lenses it depends on your budget. Gord is right on the new Isco red lenses. My next choice would be Isco Ultra Star lenses then the standard Isco and Schneider would come next. If your boss has the bucks always go for the best though.
Mark
| IP: Logged
|
|
|
|
|
|
Frank Prete
Film Handler
Posts: 55
From: Victoria, Australia
Registered: Sep 2000
|
posted 09-28-2000 12:42 AM
All, Recently we upgraded our screens at some of our older loocations. For both flat and scope images Schneider lenses were used. For the flat image we installed the variable primes! These lenses are ace. Being able to tailor the widescreen image to suit you screen/throw combination if a fantastic idea. For thoes who haven't heard of them, the variable primes are prime lenses that can be varied. The range may be something like 34.2 - 36.8. Whilst this may not seem like much, as long as you get your calculations correct, you can't go wrong. Definately worth a look. Paul, with regard to your dodgy C/S lens, could it be the throw setting has not been correctly set? I think there is some info kicking about on how to set these. Frank.
| IP: Logged
|
|
David Kilderry
Master Film Handler
Posts: 355
From: Melbourne Australia
Registered: Sep 1999
|
posted 09-28-2000 06:13 AM
John,Year ago I worked at the Forum here in Melbourne, fabulous theatre with Cinemeccanica Victoria 10's. Almost every feature was 70mm. For the Melbourne Film Festival one year brand new Schneiders were put in for 35mm and the change was unbelievable! The picture was razor sharp. In recent years, our circuit used Isco and they are definately a quality lens, but we made the move to Schneider and they are a little better throughout most of the range. Lenses do only have a finite life and if you have not had new bottles put in for about 15 years, whack in a couple of Schneiders and the difference will amaze you! David
| IP: Logged
|
|
|
|
Steve Guttag
We forgot the crackers Gromit!!!
Posts: 12814
From: Annapolis, MD
Registered: Dec 1999
|
posted 09-28-2000 04:39 PM
Stefan:I am curious. Did the "Red" barrel ISCOs (the Ultra*Star HD Plus) lenses live up to their claim on more light as compared to the Schneider? Steve ------------------
"Old projectionists never die, they just changeover!"
| IP: Logged
|
|
|
|
|
|
|
|
All times are Central (GMT -6:00)
|
This topic comprises 3 pages: 1 2 3
|
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.
|
Home
Printer-friendly view of this topic