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Hi Courtney,

I think it has been explained here before that under the Cyrillic alphabet,
the English C is the same as the Russian S so that SNO-T and SNO-T are the
same sextant. Your SNO-T sextant has many similarities to the German
Freiberger, including its paint, but is appreciably smaller in size. It is a
more expensive sextant than the SNO-M. I have seen the SNO-M in both black,
and military green.

Joel


----- Original Message -----
From: "Courtney Thomas" 
To: 
Sent: Saturday, March 20, 2004 5:39 PM
Subject: Re: Sextant Comparisons -> to Joel Jacobs...


> Joel,
>
> I should have said...I have a SNO-M, not T. Anyway, the awful olive
> color and the one scope. I got it real cheap and want to bring it up to
> snuff.
>
> I also have a more recent SNO-T which has an agreable silver color and 2
> scopes.
>
> But I obviously agree that the Russian sextants are good and a great buy.
>
> Appreciatively,
> Courtney
>
>
>
> Courtney Thomas wrote:
>
> > Joel,
> >
> > I have one and hate the color, but am otherwise satisfied.
> >
> > What is "black wrinkle paint" ? Where do I get it and how is it applied
> > for optimal esthetics ?
> >
> > Where can I get a proper scope for CELNAV ? How much ?
> >
> > Appreciatively,
> >
> > Courtney
> >
> >
> >
> > Joel Jacobs wrote:
> >
> >> Fred,
> >>
> >> Your best bet is a Russian SNO-T sextant. They are very underrated,
> >> and have
> >> most all the features of the preferred brands, and even come in a
smaller
> >> size for convenience. However, most of them are sold with only an
> >> astronomical scope which presents the image inverted, and IMO are
useless
> >> for CELNAV. Configured with the 7 x scope, you should be able to buy
> >> one for
> >> $250.00 because they are a drudge on the market with out an erect
imaging
> >> scope. You can read about them in detail at:
> >>
> >>
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3712084763&category=37971
> >>
> >> &sspagename=STRK%3AMESSE%3AIT&rd=1
> >>
> >> They wont meet your standards for good looks, but you can get some
black
> >> wrinkle paint, and make them look as pretty as you like. They are a
great
> >> buy.
> >>
> >> Joel Jacobs
> >>
> >>
> >>
> >> ----- Original Message -----
> >> From: "Fred Hebard" 
> >> To: 
> >> Sent: Saturday, March 20, 2004 12:15 PM
> >> Subject: Re: Sextant Comparisons
> >>
> >>
> >>
> >>> Doug,
> >>>
> >>> No, I don't collect older equipment.  I have been trying to acquire a
> >>> sextant suitable for lunar observations, so I look for sextants with
> >>> defects on Ebay that might still be serviceable.
> >>>
> >>> I have one British Husun that only has the "star scope."  It's a 2.5x
> >>> power scope.  It's my understanding that a more powerful one would
give
> >>> more precise readings.  I checked this by buying an old Simex-type
> >>> sextant, which subsequently was sold.  I have been looking for another
> >>> Husun with the inverting telescope or another instrument.  The Cassens
> >>> & Plath was the first that came up which was suitable.
> >>>
> >>> In comparing the Cassens and Plath to the Husun, I would say, overall,
> >>> that I prefer the Husun at this time.  It's prettier, with the
> >>> silver-inlayed arc; this increases my fondness for the instrument.
The
> >>> black crinkle finish is nicer than the Cassens and Plath's.  All the
> >>> screws are varnished or painted brass; there's no aluminum to corrode
> >>> with steel screws or react with the brass or bronze (There's no
> >>> corrosion on my Cassens and Plath; it doesn't appear ever to have been
> >>> used for extended periods).
> >>>
> >>> The 2.5x scope on the Husun has a very wide field of view, wider than
> >>> the 4x "star scope" on the Cassens and Plath.  I have seen no optical
> >>> aberrations in the Husun, while the Cassens and Plath star scope has
> >>> chromatic aberration, which rather surprised me (reddish fringe on the
> >>> bottom of the image and bluish fringe on the top).  The aberration
> >>> makes it more difficult to check index error by measuring the sun's
> >>> semidiameter.
> >>>
> >>> The handle on the Husun is straight up and down.  This makes some
> >>> lunars easier, whereas the tilted handle on both brands of Plaths,
> >>> while it makes looking at the horizon easier on the wrist, makes
lunars
> >>> more difficult.  When holding the instrument between shots or while
> >>> waiting, the Husun is less fatiguing to hold
> >>>
> >>> The star scope on the Husun is in close to the horizon mirror.  This
> >>> centers weight in the instrument, making it less fatiguing to hold.
> >>> Being close in to the horizon mirror, the smaller mirror does not
> >>> restrict the field of view of the instrument as much as one might
> >>> suppose.  I suppose the larger mirrors would be "faster" optically,
> >>> however.
> >>>
> >>> The perceived weight of the two instruments is similar.  I have not
> >>> actually weighed them.
> >>>
> >>> The lamp on the Husun can be swung around to illuminate my wrist band
> >>> when recording data.  The lamp on the Cassens and Plath is guided to
> >>> illuminate the scales only, making recording data more difficult.
> >>>
> >>> The box on the Husun is significantly smaller than the box on the
other
> >>> instruments.
> >>>
> >>> These are my impressions after two days.
> >>>
> >>> Fred
>
>>> ------------------------------------------------------------------------
> >>> Frederick V. Hebard, PhD                      Email:
mailto:Fred@acf.org
> >>> Staff Pathologist, Meadowview Research Farms  Web: http://www.acf.org
> >>> American Chestnut Foundation                  Phone: (276) 944-4631
> >>> 14005 Glenbrook Ave.                          Fax: (276) 944-0934
> >>> Meadowview, VA 24361
> >>>
> >>> On Mar 19, 2004, at 5:44 PM, Royer, Doug wrote:
> >>>
> >>>
> >>>> By the way,do you collect older sextants?Don't you also have some
older
> >>>> British equipment you wrote about in the past?Just curious.
> >>>>
> >>
> >
> >
> > --
> > Courtney Thomas
> > s/v Mutiny
> > lying Oriental, NC
> > WDB5619
> >
>
>
> --
> Courtney Thomas
> s/v Mutiny
> lying Oriental, NC
> WDB5619

   

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