On Sat, 12 Sep 1998 10:19:51 +0100 "Nigel Puttick"
>Firstly, I thought I knew how to collimate my LX200 - now I'm not so
>sure.
>As the list has been pretty quiet about optics recently, I thought it
>might
>be time to ask this little question.
All your observations are correct, I would think that checking your
diagonal with a reticle and rotate it 360 deg. this would give an
indication of how far off it is. I collinate without the diagonal
because this is the configuration for my CCD and I noticed that with the
diagonal the collination is off and very bothersome. I have two
different 90 deg. 1 1/4, one 45 deg and two 2" diagonals including the TV
and they all display the same problem. Collination is dead on straight
through but very noticeable off with the diagonal. It might be something
to do with the position of the mirror on the slider using the diagonal.
Any other thoughts?

****************************************************
ric ecker
san marcos, ca.
curator of the Willard Observatory
http://members.aol.com/rlecker/optas.html...........Pictor 216 XT images

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