Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10 5/3/83; site tekcad.UUCP Path: utzoo!linus!decvax!tektronix!tekcad!paulp From: paulp@tekcad.UUCP Newsgroups: net.rec.photo Subject: Re: Query: New VR1000 film - (nf) Message-ID: <527@tekcad.UUCP> Date: Thu, 4-Aug-83 22:27:40 EDT Article-I.D.: tekcad.527 Posted: Thu Aug 4 22:27:40 1983 Date-Received: Fri, 5-Aug-83 13:07:56 EDT Sender: ricks@tekcad.UUCP Organization: Tektronix, Beaverton OR Lines: 30 #R:cbscd5:-37200:tekcad:14300002:000:819 tekcad!paulp Aug 4 10:25:00 1983 Sky & Telescope in their March 1983 issue reviewed the VR1000 film. Briefly: recorded slightly more stars than Kodacolor 400. Ektachrome did as well with more vivid colors. sky fog is a problem. wider dynamic range makes it more suitable for nebulae. also has better red sensitivity for hydrogen alpha at 6563 A. no cooling test was attempted though ambient was 7 F. best guess is it has about the same reciprocity failure as the ASA 400 emulsions. an excellent film for auroras. Astronomy magazine has probably reviewed the film by now in more detail. Paul Pomes Usenet: {ucbvax,decvax,pur-ee,ihnss,chico}!teklabs!tekcad!paulp CSnet: paulp@tek ARPA: paulp.tek@rand-relay US Mail: Paul Pomes, Tektronix, Inc. Box 500 MS 59-323, Beaverton OR 97077 Phone: 503-627-2341