Glass selection tends to be both a science and an art. It is the intent of this paper to remove the W,[iRmxn
"mystique" surrounding glass selection, primarily based on the chromatic properties of the glass, YZ/2 :[b
and to show via careful parametric analyses how we can optimally select glasses for lenses of lQ?_1H~4=
different f/numbers, spectral bands, and performance requirements. The important roles of m~8=?R+m
refractive index and Abbe number as well as partial dispersion will be considered. Using the 7Q # A
SCHOTT glass map, six separate and identifiable regions along with glasses within each region a} :2lL%
will be discussed. The goal for this paper is to make glass selection easier to understand.
