Glass selection tends to be both a science and an art. It is the intent of this paper to remove the Xy5e5K
"mystique" surrounding glass selection, primarily based on the chromatic properties of the glass, g8PTGz
and to show via careful parametric analyses how we can optimally select glasses for lenses of Y>'|oygHA
different f/numbers, spectral bands, and performance requirements. The important roles of J9~g|5
refractive index and Abbe number as well as partial dispersion will be considered. Using the qucq,Yw
SCHOTT glass map, six separate and identifiable regions along with glasses within each region jH_JmYd
will be discussed. The goal for this paper is to make glass selection easier to understand.