Diagonal ?

On Wed, 08 Oct 2003 09:02:07 -0400, "André P." ...reflected:

I Alan,

I have the project to buy Orion 120mm ST F6, perhaps APM 102mm (China)
for observing at low power.

That particular refractor will possess its share of false color from the
factory, therefore you may wish to go with a mirror diagonal so as not to
intensify the aberration within the view any further.

Also, be sure to take into account others's advice within this thread,
and certainly before mine.

Thank.

You're welcome.

Alan