Thank you Alan and Thank you Hap....

Yes, the 9mm eyepiece is parfocal... it took me two years but I finally
found that out by accident reading another MAPUG post.

I did try the 201 "straight through" using the 9mm to focus on a star. My
Orion 90mm was piggy back and it seemed to work for a long time... then the
201 stopped guiding for no apparent reason.

By the way, does anyone know if the Meade 416 CCD has a parfocal eyepiece?
If so which one?

----- Original Message -----
Sent: Monday, March 05, 2001 4:34 PM
Subject: Re: [M]: 201 set up


> The 201XT seems to be very uncooperative with the distorted star images
> provided by most off-axis guiders, especially Meade's. I found mine
(before
> I got an ST4) to work much better through the scope at prime focus and
> piggybacking a camera. No diagonal is neccessary. Just be very
particular
> at focusing. If I remember right, the Meade 9 mm illuminated reticle
> eyepiece is parfocal with the 201XT.
>
> Hap Griffin
>
> ----- Original Message -----
> Sent: Monday, March 05, 2001 12:58 AM
> Subject: RE: [M]: 201 set up
>
>
> > >>>Must I put the 201 in an offaxis guider or 90 degree diagonal on the
> > LX200 to work or can it go straight through at prime focus???<<<
> >
> > Hey Ed,
> >
> > I've never considered that. I would think there's no reason it can't
work
> at
> > prime focus. If you've already got an OAG set up, you might want to use
> that
> > so you don't have to mess with finding a new focal point at PF.
> >
> > Alan
> >
> >
> > ______________________________________________
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>
>

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