Hi Darrell,

Maybe mirror flop is a bit of an issue here?

Bruce T

>
> So I started thinking along the following lines. I need to take the whole
> of the optics into account, as the corrector plate could be off by a small
> amount in relationship to the axis of the OTA. If I put my LX-200 on my
> wedge, and then set the Dec to 90, and then align the wedge so Polaris is
in
> the center of the eyepiece, I should be able to spin the mount in RA and
> Polaris should stay centered. If the star produced an ellipse or a circle
> this would be an indication that the scope was not orthoganal. Naturally
I
> should be able to remove any movement in one plane with the Dec axis, but
> the other would have to be removed by adjusting the OTA alignment screws
at
> each side of the tube. Anyone see anything wrong with this thought
process?
> Am I missing something?
>
> The reason I ask is, I tried this last night, and I never could get the
star
> to even stay within the FOV for one rotation. No adjustment would make it
> better, only worse. This was using a 40mm EP with a FOV of about one full
> degree. What am I missing?
>
>
> Darrell
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