Re: [APML]: Meade/Celestron Focal Reducers

[Mike Regish <mregish@map.com>]

Steve,

I have the Celestron reducer and it shows crescents in the corners and
enlarged stars near the edges. With cropping, I can get a useable image,
but nothing like pinpoint stars all the way to the edges. It also shows
quite a bit of vignetting on my 8" SCT.

I'm curious...are you thinking of using this on your newt?

Steve Bell wrote:

>
> Do any of you know if the Meade and/or Celestron focal reducers are
> known for introducing spherical aberration?
>
> --
> Clear skies,
> Steve Bell
> email: sb635@delphi.com
> Astrophoto page: http://people.delphi.com/sb635