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Courtney,
As I can judge from the pictures,
and from SNO-M manual, it is just the SAME scope.
So you are proposing buying an SNO-M just for its
scope? Well, the current advertised price
in maurnavy.com/ is $145, plus $80 (at least)
for shipping and money transfer... A bit too expensive
for an old used scope in unknown condition.

Alex.



On Mon, 14 Feb 2005, Courtney Thomas wrote:

> For those that might prefer a less expensive alternative to the SNO-T
> inverting scope,... my SNO-M inverting scope has all the same
> adjustments as my SNO-T inverting scope.
>
> HTH,
>
> Courtney
>
>
>
> Alexandre Eremenko wrote:
>
> > Frank,
> > We already discussed these SNO inverting scopes
> > a lot on this list, so let me try to summarize:
> >
> > On Sun, 13 Feb 2005, Frank Reed wrote:
> >
> >
> >>If I have it right then, the feature that you
> >>like about the inverting
> >>scopes is not that they're inverting
> >>but he fact that they have adjustable
> >>alignment (which would make good sense). Yes?
> >>
> >
> > That it is inverting is not a "feature":-)
> > It is just an accidental property, irrelevant
> > for astronomical observations. But relevant in binoculars,
> > designed for looking at objects on the earth,
> > that's why they never make inverting binoculars.
> > But from the pure optical point of view, Kepler scopes are
> > superior to everything else.
> >
> > The features are:
> > 1. They let maximal amount of light through.
> > Because they have the
> > minimal possible number of lenses (2) and no prisms or mirrors.
> > Probably this is the main advantage. This is also the
> > reason astonomers prefer them.
> > 2. They have no prisms and thus are much smaller and
> > lighter than comparable prismatic scopes.
> > 3. At the same time they have larger field of view
> > in comparison with Galileo scopes of equal diameter
> > and magnification.
> > 4. They have wires (you cannot mount wires in a Galileo scope).
> > The usefulness of wires was discussed a lot on the list,
> > so I do not repeat the arguments. I remember that Frank
> > was not convinced in their usefulness.
> > 5. They have collimation adjustment.
> > I don't know why most modern sextants do not have it,
> > maybe because for this adjustment you need wires, and it is
> > impossible to put wires in a Galileo scope:-)
> >
> > Alex.
> >
> >
>
>
> --
> s/v Mutiny
> Rhodes Bounty II
> lying Oriental, NC
> WDB5619
>

   

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