Article View: sci.astro
Article #3455Advice wanted on "Copy-scope"
From: John McVey x3638
Date: Tue, 05 Jan 1993 16:21
Date: Tue, 05 Jan 1993 16:21
13 lines
891 bytes
891 bytes
I built a small refractor for my 8-year old using a lens from a copy machine. The lens is 280mm f/4.5. That equates to about a 60mm effective aperture. The alt-azimuth mounting turned out real nice with geared slow motions on both axies. The images are good but there is some flare. Has anyone experimented with which end of the copy lens to face towards the sky. Is one way better than the other? John McVey jmcvey@hpbslq.boi.hp.com
Technical Details
Message-ID:
<C0E2sM.I09@boi.hp.com>Path:
arc1-ca.pugleaf.net!sparky!uunet!usc!cs.utexas.edu!sdd.hp.com!hpscit.sc.hp.com!cupnews0.cup.hp.com!news1.boi.hp.com!jmcveyShow Full Headers
Complete Article Headers
Newsgroups: sci.astro Path: arc1-ca.pugleaf.net!sparky!uunet!usc!cs.utexas.edu!sdd.hp.com!hpscit.sc.hp.com!cupnews0.cup.hp.com!news1.boi.hp.com!jmcvey From: jmcvey@boi.hp.com ( John McVey x3638 ) Subject: Advice wanted on "Copy-scope" Sender: news@boi.hp.com (News Server Project) Message-ID: <C0E2sM.I09@boi.hp.com> Date: Tue, 5 Jan 1993 16:21:58 GMT Organization: Hewlett-Packard / Boise, Idaho X-Newsreader: Tin 1.1scd1 PL4 Lines: 13