Indexer System Guide October 2004
© As-Built Solutions Ltd Page 3
1.3 Lens Cap and lens Hood
The lens cap should always be replaced then the unit is not in use. The front element of the wide angle
lens protrudes significantly making it more prone to damage.
All wide angle lenses are prone to lens flare when looking towards a bright light source.
To minimise this the lens hood should gener ally be used. A very small portion of the i mage in the corners
will appear darkened.
It is necessary to avoid this or the lighting means lens flare is very unlikely then remove the hood by
pulling gently forward. (The hood is seen below between the unit and the lens cap). The lens hood should
be stored carefully as the lens cap cannot be replaced without it.