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Posted by on Tuesday, October 23, 2012 at 10:33am.

state the surface powers required to produce the following lenses with +6.25D front curves.
a. -0.50 DS
6. +0.50 DS
c. +1.75 DS

  • physics - , Tuesday, October 23, 2012 at 10:47am

    is a =-6.75DS?...

  • physics - , Monday, November 4, 2013 at 10:17am

    Did you ever figure it out?? I am doing something VERY similar now

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