[SJAAboard] Loaners: "my original poor quality wide field refractor"
Rich N
rnapo at znet.com
Thu Jun 12 19:07:22 MDT 2008
It would be nice to have a reasonably good 80mm refractor on a good
mount. Or, maybe two 80mm, one on an alt/az and one on an EQ mount.
We have one very nice 4" APO refractor in a GEM. Maybe a good 4" achromat
would be useful. Or, maybe a good 120mm achromat?
Rich
> Rob,
>
> Several of us were a bit surprised (as we have said) with the
> sell-off of both the small "wide field refractors" at the auction.
> Your post of 5/20 makes it clearer why that decision was made
> (particularly if the refractors were exactly the same as the
> scope you started with as a beginner and sold in 2002).
>
> I believe that there have been several reviews of this 'generic'
> type of short focus acromat that have given them good reviews
> [of course review is specific to a particular OTA and design].
> The reviews I remember - talked about how the basic design
> philosophy was to 'forget about violet-far blue' correction and
> to just concentrate on the mid-visible. This is NOT the classical
> f/12 design goal. It works best with a slight minus-blue filter
> (this gets rid of the annoying far blue fringe).
>
> The latest issue of Sky & Telescope has a cover article
> reference to a 'grab and go' scope and there is also another
> article inside mentioning the same category of scope. I
> was wondering what Rob and Rich's take is on a 'better'
> version of this type of beginner scope. (still in beginner
> price range and small size)
>
> Steven Nelson
>
>
>
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