Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.2 9/18/84 exptools; site ihlpg.UUCP Path: utzoo!watmath!clyde!burl!ulysses!mhuxr!mhuxn!ihnp4!ihlpg!dimario From: dimario@ihlpg.UUCP (Michael J. DiMario) Newsgroups: net.astro,net.rec.photo Subject: Astophotography Message-ID: <1578@ihlpg.UUCP> Date: Thu, 23-Jan-86 13:33:00 EST Article-I.D.: ihlpg.1578 Posted: Thu Jan 23 13:33:00 1986 Date-Received: Fri, 24-Jan-86 09:05:27 EST Distribution: net Organization: AT&T Bell Laboratories Lines: 13 Xref: watmath net.astro:1305 net.rec.photo:1786 I have been researching the types of film to be used for astrophotography and cannot seem to determine the type of film to use and when to use it. Is there anyone one that can enlighten me on this? When does one use say Kodachrome 64 vs. Ektachrome 100 vs. higher speed film at ASA 400, 1000, or 1600 (other than increasing the sensitivity to light)? Is it more important to go for contrast at lower ASA than sensitivity to light? Thank you, mike dimario ihnp4!ihlpg!dimario