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Focal plane filter wheel

This has 8 positions, each of which can hold a circular filter up to 125 mm in diameter. The filters available for use with TAURUS-2 are listed in viii. The filters can be tilted by up to 10 degrees; this has the effect of shifting the central wavelength of interference filters to the blue (see section viii).

Thu Apr 7 00:29:52 BST 1994