I have a 9mm. Celestron orthoscopic that is pretty old. It gives the best
planetary images with my 10inch Lx and my Celestron C6. Actually in many
cases, the C6 beats the Lx for clear views of Mars for instance.

R

> Date: Thu, 14 Jun 2001 23:04:16 -0400
> Subject: mapug-digest V1 #3299
>
>
> Date: Fri, 15 Jun 2001 08:20:29 +0800
> Subject: [M]: Re: Re: Best planetary eyepiece
>
> Hmmm... that's not entirely true. Some planetary specialists argue that well
> made Orthoscopics and even Kellners are superior for planetary viewing
> simply because of the number of elements. The more glass, the more can go
> wrong. I agree that there is a lot of subjectivity in this type of
> comparison, but I also believe that (at least design-wise / number of
> elements) there is a significant difference between Plossls, Othoscopics,
> Radians etc.
>
> My personal experience is based purely on the sharpest image I can get at
> the highest magnification. Of my set of current planetary eyepieces (15.5 mm
> Erfle, 9 mm Orthoscopic, 7 mm Erfle) I find the 9 mm Orthoscopice gets the
> most use. I've rarely been able to get down to 7 mm (on my 8 inch
> Newtonian).
>
> Cheers ...

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