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Path: utzoo!watmath!clyde!burl!ulysses!mhuxr!mhuxt!rduxb!smh
From: smh@rduxb.UUCP (henning)
Newsgroups: net.rec.photo
Subject: Re: Projection Lenses
Message-ID: <557@rduxb.UUCP>
Date: Tue, 9-Jul-85 20:01:23 EDT
Article-I.D.: rduxb.557
Posted: Tue Jul  9 20:01:23 1985
Date-Received: Thu, 11-Jul-85 07:19:50 EDT
References: <2612@wateng.UUCP> <3961@alice.UUCP>
Organization: AT&T Bell Laboratories, Reading, PA
Lines: 12

> There is an easy way:   take two identical slides down to the store,
> ask the dealer to set up two projectors side by side, one with
> an Ektanar and one with the "RAYNOX", and compare images.

****                                                                 ****
From the keys of Steve Henning, AT&T Bell Labs, Reading, PA rduxb!smh

There is one more thing you must do.  Use a matte screen or even a plain
piece of white card board or a white wall if it is very flat.  Do not use
a beaded or lenticular screen.  They are designed for brightness and not
image sharpness.  Since most projectors are used on one of these screens
which diffuses the image, a sharp lens is not always necessary.