Lamp Adjustment; Installation Of An Optional Lens - Robe SPOT 250 XT User Manual

4.2 Lamp adjustment

Correct Incorrect
Keep optimum distance to lens
Optimum distance 1 - 1,5mm
Screw "A"
Screw "B"
The SPOT 250 XT lampholder is aligned at the factory. Due to differences between lamps, fine adjustment may
improve light performance.
Strike the lamp and focus the light on a flat surface (wall). As the optimum distance of lamp from lens was
adjusted during the installing or changing the lamp (by turning the screw "A"), it is necessary to adjust only the
second position by turning the screw "B", in order to center the hot-spot (the brightest part of the beam).
If the hot- spot seems to be too bright, you can lower its intensity by moving the lamp closer to the reflector. Do
so by turning srew "A" until the light is evenly distributed.
If the light on the edge seems to be brighter as in the center, the lamp is too close at the reflector. In this case, you
need to move the lamp away from the reflector until the light is evenly distributed and the beam appears bright
enough.

4.3 Installation of an optional lens

The device is delivered with a 15°-standard lens. If you wish to insert an optional 12° or 18°-lens (it is not the
standard part of delivery), please follow the instructions below:
Optional 12°-lens:
Remove the fixation-ring of the 15°-lens with an appropriate tool. Remove the lens. Install the optional 12°-lens
and fix it with the fixation-ring.
15°- lens optional 12°- lens
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