Vicon IX 2000 L Specifications download pdf (Page 7)

COMMISSIONING THE CAMERA

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Focusing the Camera Lens

After you have selected the correct picture detail you have to adjust the lens focus.

The focus adjustment needs to be done with the iris fully open, since the camera has

the smallest depth of focus in this position. If the focus adjustment was not done with

the iris completely open, the picture would be sharp during the day but slowly getting

out of focus the more the light disappears. To fully open the lens, use a grey filter in

front of the lens, provided you are using a lens with automatic iris. Adjust the focus

while the iris is fully open using the lens focus ring. Make sure the most important

picture details are in optimum focus (use a service monitor). If it is not possible to

bring the picture into focus, please adjust the back focus of the camera as described

above.

If you intend to use I.R. illumination at a later stage, you must use an I.R. pass filter

together with the grey filter during focus adjustment to ensure that only I.R. light will

get through to the camera chip and the focus adjustment is done according to this

spectrum, only. Attention: I.R. light can only be used in combination with mono

cameras, not colour cameras!

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