P3D negative lens for distance

[SHIELDS@xxxxxxxxxxxxxxxxxx]

Hi!

I've not gotten any response yet about a distance lens for a Nimslo--it
did occur to me that, since glasses have already been used as closeup
lenses for the Nimslo, why not talk to an optician? So I did, and the
first one seemed willing to try making something for me. The trouble is,
even though I know it needs to be a negative lens, I don't know how
strong I should ask for. I would think not very--the distance lens for
my 16II wasn't very strong. The Nimslo has prime focus at 9 ft.

Any thoughts, formulas, etc. would be appreciated!

Mark Shields

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shields@xxxxxxxxxxxxxxxxxx
http://www.netcom.com/~northws1/stmatt.htm
"Let the little children come to Me," Jesus said, "and don't keep
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