Re: 1/6 or 1/8 wave

On 15 Jan 2007 16:56:23 -0800, "Shneor" <shneor@xxxxxxxxxxx> wrote:

It may be true that in smaller instruments the difference between 1/6
and 1/8 wave might not be significant to most observers. However, in
larger instruments, say 16" and above, one noticeable difference that
depends on the quality of the mirror surface (and of course, the
eyepiece as well) is the ability to see color in extended DSOs. The
better the mirror surface, the easier it is to distinguish color.

I'm curious why you think that might be. After all, color sensitivity
only depends on getting enough photons, not in any obvious way on
resolution.

(Of course, I don't personally believe that large instruments are any
more effective at showing color with DSOs than small ones, so we may
entirely different ideas about telescopic color.)

_________________________________________________

Chris L Peterson
Cloudbait Observatory
http://www.cloudbait.com
.

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