Campbell Scientific CC640 Digital Camera - Manual (Page 28)

CC640 Digital Camera
compression will produce the smallest files but with the most degradation of
the image.
Small files may be important for slow telecommunication links or for
applications that require a large number of pictures to be stored onto the
memory card.
Very high compression is the recommended setting to produce satisfactory
results for most applications while taking advantage of the benefits of smaller
file sizes.
8. Lens
The standard Lens for the CC640 camera contains the following features:
• CS Mount
• Varifocal (manual zoom)
• Manual Focus
• DC Iris
The camera controls the iris of the lens using the cable with a 4-pin connector.
This connector must always be plugged into the receptacle (on the front lens
plate of the camera) for proper operation.
8.1 Focus and Zoom Adjustment
The lens is equipped with manual zoom and focus adjustment rings. The most
practical way to adjust the lens is by utilizing a normal Television monitor or a
portable Television.
• Connect an appropriate video cable from the video output connector (RCA
Jack) of the camera to the video input on the video monitor of the
television.
• Turn the power switches of both the camera and the television to the ON
position and then press the Setup Button. Within a few seconds the video
will appear on the monitor. Consult your monitor owner’s manual for
additional instructions on displaying video from the video input jack.
• Once the video is observed on the monitor, loosen the 2 thumbscrews on
the adjustment rings of the lens.
• It is easier to adjust the zoom first and then the focus.
• Once the zoom is adjusted as desired tighten the thumbscrew so that the
zoom will not inadvertently move when the focus is adjusted.
• Adjust the focus ring and then tighten its thumbscrew as well.
Recommendation: If the camera is targeted at an object that is far away (100
Meters or more), it may be beneficial to adjust the lens before taking the
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