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JKT f/8 Cassegrain (Figure 5)

The guide field is a rectangle defined by the range of travel of the guide probe, with a smaller rectangle chopped out of one corner so as to avoid vignetting of the central region of the field. The additional condition excludes the region with: and , with x = 156.9 mm and y = 111.4 mm.

dxc@mail.ast.cam.ac.uk
Tue Apr 12 04:17:24 BST 1994