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There is another problem with new observers looking into the eyepiece that is seldom mentioned.
If you look at the eyepiece from a few inches away you will see the "exit pupil" It can be quite large or small depending on the optics.
The new viewer needs to line this up with his own pupil else he will see nothing. May take a bit of practice to do this. If the exit pupil is large it is much easier for the new viewer to get used to.
When I show my telescope at open nights I have a lot of this bother with children. Closing the wrong eye usually, but often not looking in the right place. I quite often do something that is "politically incorrect" by holding the childs head and moving it till the child says yes I can see it.
Barry
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