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Guiding field control

The field-of-view of the guiding camera (GFOV) can be changed along declination by $\pm$15 arcmin with respect to the coordinates at which the telescope points. In rectascension the guide field is offset 8.77 arcmin to the west. The GFOV is moved by pressing "+" or "-" in the guiding field control unit. Two velocities are provided (Fig. 14).

Dieter Engels