Lens Focussing - Eneo VKC-1310 Instrucciones De Manejo

8. Lens focussing

C-Mount lens
CS-Mount lens
Fixfocus lenses
Zoom lenses
Remark
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K
Point the camera for focussing at an object which is min. 2000 times the the focal
distance away (at a focal distance of 7.5 mm the object should be at least 15 m away).
Open the iris completely and adjust the focus ring to infinity.
At lenses with automatic iris control use a dark test pattern (or a N/D filter) to make
sure that the iris is fully opened.
Open locking screw M. Turn the lens with the CS-Mount until the maximum focus is
achieved.
Fasten screw M again.
Point the camera to a test pattern (Distance 5x minimum focal distance. This means
that the test pattern has to be 5 m away if the lens has a minimal focal distance of 1 m).
Open the iris completely and set the lens to maximum zoom position and adjust focus
with the focus ring.
Use a dark test pattern (or a N/D filter) at cameras with automatic iris control to make
sure that the iris is fully opened.
Set the lens to maximum wide angle position.
Open screw M for flange focus adjustment and turn the lens at CS-Mount
Ring L until the focus maximum is achieved.
Fasten screw M again.
Use only lenses specified for colour cameras. Cameras for B/W cameras could deliver
insufficient picture quality and colour reproduction. They are particularly not suited for
bright daylight.
The required minimum light level can possibly not be reached if a lens with a neutral
density gray filter (ND filter) is used.
M
L
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