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Filters
This document summarises the filters available for use with the ING telescopes. Table 2 lists the filters available for CCD imaging. All of these are 50 mm square, except where otherwise noted, and can be used at all the imaging instruments: JKT Cass, INT Prime, WHT Prime and AUX port. Apart from the filter characteristics we also give some telescope specific information. Table 2 lists the larger, circular, filters available for imaging and for Fabry-Perot spectroscopy with TAURUS-2 on the WHT. The information in this document comes from various sources: the La Palma Technical Notes 45, 73, 75 and 90, the INT Prime Focus manual, and a List of Optical Components compiled by Chris Benn.