hi all
how can i calculate the max. ET of a SV with cylinder??
does anyone have the formula to calculate the min. ET and max. ET of single vision lenses??
thanks - mike
hi all
how can i calculate the max. ET of a SV with cylinder??
does anyone have the formula to calculate the min. ET and max. ET of single vision lenses??
thanks - mike
Mike,
Do yourself a favor and pick up a copy of Optical Formulas Tutorial, by Stoner, Perkins, Ferguson.
It is packed with all the formulas that you may need, it explains how to figure them out, and is a valuable tool in any optical professionals bag.
where can i get it?
Just ordered myself a copy from amazon.com. $51 new
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