The guiding system is designed to spectroscopy only. What about guiding of the photometry camera, we guide the telescope (if necessary) with short exposure among "scientific" files.
The fibers to spectrographs are grabbed in small slanted mirror just in optical axis. Simple camera is focused on the mirror. The small mirror moves on train and thus asked fiber is placed to focus of the guiding camera.
We operate with three fibers: two of them for single order spectrograph (star and sky background) and one fiber for the echelle.
Camera: G1 0300 (Moravian instruments) CCD chip: ICX424AL, 656x494, pixelsize 7.4x7.4 microns Cooling: No cooling Filters: No filters Exposure time: 0.1 -- 30s Field of view: 7.1 x 5.3 arcmin Limit magnitude: 17.2mag Scale: 0.64arcsec/px