*OLD* 1.2m CCD Filters

Another filter set, called the SAO set, dates from 1992 and has fallen into desuetude. These filters are all glass and coated with Sol Gel, so they cannot be cleaned. This set also includes a Z filter with strong astigmatism. Click here for transmission curves or here for a listing. 
Count rate improvement of the Harris set over the SAO set:
U       0.54mag (60%)
B       0.23mag (23%)
V       0.34mag (37%)
R       0.40mag (44%)
I       0.10mag (10%)

We also have a set of old 2" filters. Note that the 2" filters vignette at the edges of the Keplercam CCD field, in an ugly way that yields astigmatic star images. If you have a very special reason to use these filters, you should contact the staff well in advance of your run. Click here for a listing of 2" filters.

Created 10/12/04 by EF
Updated 02/07/07 by EF