On Thu, 01 Aug 2002 12:39:57 -0500, Tom Droege wrote: >is early, I have just figured out that it is hard to focus when pointing at >a tree. Reminds me of an entry in my collection of funny things in the literature: "Attenuation by the dome was avoided by always observing through the slit." Granted it was about some microwave observations but it cracked me up when I saw it. Dirk