On Thu, 1 Jan 2004 16:30:16 -0500, Neil wrote:

Here's a few of what I'd like to see in amateur astro optics,
to whatever extent these don't already exist...
..
..
..
4. I wish someone would (has?) tried to make a reflector with a
design I thought of, if not originally: Put a Barlow between a
Newtonian primary and the secondary mirror, to allow using a
smaller secondary (because of extending of light cone) and longer
f.l. with short tube.

On point four, see the following:

http://capenewise.co.uk/

gregory


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