If you need to use a Schott filter, please contact David Doss to make sure we have the one(s) you need.

McDonald Observatory Interference Filters

Schott S8612 (Substitute for CuSO₄)

30" Bessel Filters (PFC) 2"x2"

Old PFC Filters (prior to 08/02/05)

White Guider Filters (generally in 8-hole filter wheel)--1"x1"

Black Guider Filters 2"x2"

Johnson UBV Set #3
1"x1"

Strömgren Set C
1"x1" or 1" Round

UBVRI Set #4
1"x1"

Washington/DDO Filters (PFC)
2"x2"
Property of Dept. of Astronomy/UVA