Glass selection tends to be both a science and an art. It is the intent of this paper to remove the gaC4u,Zb
"mystique" surrounding glass selection, primarily based on the chromatic properties of the glass, PCwc=
and to show via careful parametric analyses how we can optimally select glasses for lenses of TfJ*G6\7e#
different f/numbers, spectral bands, and performance requirements. The important roles of ?Sh"%x
refractive index and Abbe number as well as partial dispersion will be considered. Using the ?#a&eW
SCHOTT glass map, six separate and identifiable regions along with glasses within each region 7:g _:}m
will be discussed. The goal for this paper is to make glass selection easier to understand.
