Technical specifica�ons
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Derksen Lich�echnik
8.3. Photometric data
The focal length of your lens mainly affects possible projec�on sizes and distances. Please note that the illuminance decre-
ases as the distance increases. The diagrams below provide the corresponding values as based on your projector’s output.
Ultra wide-angle lens, f=45 mm, 48°
Colour code for projec�on brightness
= under normal interior ligh�ng, suitable for coloured pa�erns
= in poorly lit rooms, for colourless pa�erns
= recommended only for darkened rooms
