John Lind wrote
> BTW, the other way to get dioptric correction is to take a lens from a pair
> of old glasses having the same _distance_ (not reading) correction as the
> current prescription and have a dioptric correction lens cut from the
> middle of it.
and W.J. Liles responded
> I made a finder lense for my OM1n by cutting out the center of an
> old pair of glasses so I'd also correct for a bit of astigmatismn. It
> works perfectly with everything in focus.
Have you tried taking any verticals yet? AFAIK astigmatic lenses
have a "right way up".
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