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Next: UFMNAME
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Selects the UES focal modifier lens.
Format: UMODLENS <parameter>
Units: None
Range: 1 < <parameter> < 7 or name of component
Defaults: Defaults to uninitialised on power--up
Examples : UMODLENS 5, UMODLENS BLUE
Comments: The red and blue focal modifier lenses mounted in this wheel convert the f/11 telescope beam to f/13.9. With the focal modifier lenses in, there is no overfilling of the echelle; note that this is opposite to the case of the UCLES spectrograph.