RG 9 transmission curve
BG 39, BG 40 transmission curves
VG 6, VG 9, VG 14 transmission curves
BG 3 transmission curve
BG 7, BG 13 transmission curves
BG 18, BG 38 transmission curves
BG 12, BG 25, transmission curves
BG 23, BG 26, BG 28 transmission curves
UG 5, UG 11, BG 24a transmission curves
UG 1 transmission curve