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SPX Operation Manual 9
Version 1.1: 2010 © 2010 Philips Selecon All Rights Reserved
Changing the Lens Tube
The SPX fixed beam and zoom lens tubes are interchangeable. Move the lens knob(s) towards the front of the
tube. Slide the lens tube locking catch forward and lift out the lens tube. Replace it with the desired lens tube.
Ensure the lens tube locking catch is fully engaged.
Colour Filter Life
The SPX optical system has been designed
for maximum light output using modern
compact filament lamps, while optimising
colour filter life.
Colour filter life is of typical duration
compared to other ellipsoidals.
Please refer to the table below for more
performance information.
Tested with dark blue high performance gel using an 800W lamp, 240V.
Lens Tube
Flat
Peak
14°
Excellent
Excellent
19°
Excellent
Excellent
26°
Good
Good
36°
Good
Good
50°
Good
Okay
15° - 35° at 15°
Excellent
Excellent
15° - 35° at 35°
Good
Good
25° - 50° at 25°
Excellent
Excellent
25° - 50° at 50°
Excellent
Excellent