Glass selection tends to be both a science and an art. It is the intent of this paper to remove the ;Xw'WMb*=
"mystique" surrounding glass selection, primarily based on the chromatic properties of the glass, SXW8p>1Jw
and to show via careful parametric analyses how we can optimally select glasses for lenses of :7w^2/ZGo
different f/numbers, spectral bands, and performance requirements. The important roles of }Ra'`;D$
refractive index and Abbe number as well as partial dispersion will be considered. Using the 5 uU.K3G7
SCHOTT glass map, six separate and identifiable regions along with glasses within each region q{?ku!cL
will be discussed. The goal for this paper is to make glass selection easier to understand.