Celestron filter sets, which contain four different filters per set. Not only are these highly useful filter combinations, but they also offer an economical way to add versatility to your filter collection. Descriptions of all filters within these sets are given above.
[Series 4 – #94118-S4]Yellow, Deep Yellow, Violet, Pale Blue (#s 8, 15, 47, 82A) ALL in cases and box. $35.00 delivered for all.. Thanks