And in particular, you and I are both looking for a *reducer*, not
just a flattener. :-( In any case, I haven't even tried photography
with it yet at f/9, so perhaps it's premature for me to be looking for
a reducer.

-- Paul

>
> I am sure he does great work, and I am interested in a focal reducer
for
> my scope,
> just not quite that interested in spending quite that much $ and going
> half way
> around the world (I guess my level of commitment is showing!).
> Looking for something closer to home and more readily available.
>
> Thanks for the suggestion, though.
> m.
>
>
> > In a message dated 12/3/98 11:37:06 AM Eastern Standard Time,
> >
> > << I would like to reduce the focal ratio of my Meade F/9 (5")
Refractor
> > for primarily DS photo work with some visual use and was
wondering if
> > there are any recommendation for a Focal Reducer or
Telecompressor to do
> > this. (Look for F/7 or better).
> >
> > Right now the only two things I have heard of are to either use the
> > Meade SCT 6.3 Focal reducer with an adapter, or possibly AP has a
.75
> > Telecompressor that is used on their EDF and EDT line, however it
> > threads into the back of their 2.7" focuser which may have
different
> > threads then the Meade 2.7" focuser. >>
> >
> > You may be in luck!
> >
> > I recall that quite a while ago, (former?) MAPUG member Valery
Deryuzhin of
> > Aries Instruments Co. (58 Ushakova Str., kv. 39 Kherson, 325026,
Ukraine)
> > designed a series of APO corrector/reducer?/flattener lenses for
the Meade 4",
> > 5", 6", and 7" ED refractors. He claimed that they would improve
the color
> > correction to genuine APO levels over a limited field of view the
diameter of
> > which I forget, but my impression was something like 0.33 or 0.5
inch image
> > diameter fully corrected to the same level as an AstroPhysics
refractor. I
> > think it was also a flattener for photography over a larger
diameter.
> >
> > I have done a couple of searches of the archives and haven't found
the
> > original post yet.
> >
> > I have no idea if anyone has taken him up on making one for them,
but if they
> > have, I haven't heard about it.
> >
> > The prices varied by aperture, and were somewhere around $500 for
the 5". If
> > you decide to take this route, I'd recommend having the German
dealer Markus
don't want to
> > become an expert in Ukrainian export and customs law.
> >
> > Valery is almost certainly a world-class optician, and Markus
brought an 8"
> > Aries fluorite APO to the last Stellafane, which was rated by some
people on
> > s.a.a. as approximately equal to or possibly higher in quality
compared to a
> > nearby Takashashi 6" fluorite.
> >
> > Roland Christen of AstroPhysics has also stated that the coatings
on the Aries
> > optics he has seen are world-class.
> >
> > In any case, I've been patiently waiting for one of you Meade ED
"APO" owners
> > to take the plunge on one of these Aries correctors, and be the
guinea pig for
> > all of us.
> >
> > :-)
> >
> > John
>
>

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