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
> 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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