Several filters are available for use with the SBC, including a Lyman narrow band filter (F122M), a long pass quartz filter (F150LP), MgF2 filter (F115LP), and a CaF2 filter (F125LP). The SBC also includes two additional long pass filters (F140LP and F165LP) as well as prisms (discussed in Chapter 6). A list of filters is given in Table 5.3
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