P3D Re: Focusing with glasses off

[michaelk@xxxxxxxxxxxxxxxxxx (Michael Kersenbrock)]

> I personally recommend that when a viewer is passed around, people should
> keep their glasses on.  I don't think it is polite to pass around a 
> misadjusted viewer.

Personally, I do the opposite.  For me, looking with glasses really
doesn't work all that great so I'd rather have each person refocus
the viewer and see it well -- than to have it adjustment-free but
people not see things well.  If the adjustment range isn't good
enough then they can try glasses.  I want each person to the
very best visual experience possible.

That's the reason for my having multiple viewers so that I can
have just the slide being passed around (when "crowd" is small).

Mike K.

P.S. - At least with my eyes (-5 diopter contact lenses, which is
       what gives the best of both worlds) my bare eyes work 
       within the focus range of a Red-button viewer.  Just
       barely.  Both eyes have the same strength corrective
       lenses -- only difference is that one lens is larger
       because it seems that I've better peripheral vision
       in one eye (it's extra wide, I had that one made larger
       because otherwise I could see the edge of the contact lens).


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