DF3000A(-DN) / DF3000AS(-DN)
15
Dallmeier electronic
NOTE
The camera is by default configured for use with DC auto iris
lenses.
If using a lens with manual iris control, you have to reconfigure
the camera accordingly (see section 8.1).
Video signal-controlled lenses are not supported.
IMPORTANT
Possible damage to the sensor caused by improper cleaning.
Only use approved methods and products for sensor cleaning.
For more information please contact the Dallmeier support.
¾
Remove the rear lens cap and the camera body cap.
¾
Screw the lens carefully into the CS lens mount (D).
¾
If using a DC auto iris lens, connect the lens cable to the DC auto iris interface (I).
6.3
Adjusting the back focus
The back focus is the distance between the lens support on the camera and the image
sensor. Optimum focus is only possible when the correct distance is set.
It may be necessary to adjust the back focus in individual cases due to production tolerances
of the lens. The iris of the lens must be open as wide as possible (smallest iris value) to
adjust the back focus.
For lenses with automatic iris control, you will require a ND filter (gray filter) to prevent the
iris from closing in bright light.
Adjustment for lenses with a fixed focal distance
If the focus cannot be set exactly by turning the focus ring (lens), please proceed as follows:
1 Point the camera at an object with sufficient contrast. The distance to the object should
be greater than 1000 x the focal distance.
2 Open the iris on the lens.
3 Set the distance at the lens to infinity (
∞
).
4 Loosen the locking screw (B) on the camera with an adequate Allen wrench.
5 Turn the back focus adjustment ring (D) until the optimum focus is achieved.
6 Tighten the locking screw (B).
