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6. AUTOIRIS LENS CONNECTOR FOR DC DRIVE LENS
This connector supplies the control signals to the DC drive autoiris lens.
7. BACKFOCUS ADJUSTMENT
This is used to position the CCD image sensor at the precise point of focus the lens.
Backfocusing Fixed-Focal-Length Lenses
1. Install a lens and connect the camera to a monitor and power supply.
2. Open the iris completely. If an autoiris lens used, reduce the room lighting to allow the lens to open
completely. This gives the most accurate results.
3. Adjust the thumbwheel slowly until the sharpest picture is obtained. This completes the adjustment.
Backfocusing Zoom Lenses
1. Install a lens and connect the camera to a monitor and power supply. If the lens is motorized, it must
also be connected to a lens control.
2. Position the camera 25~50 feet (8~16 meters) from a flat vertical surface suitable for focusing. A
newspaper works well as a focusing target.
3. Open the iris completely. If an autoiris lens used, reduce the room lighting to allow the lens to open
completely. This gives the most accurate results.
4. Zoom the lens in to the maximum telephoto setting. Adjust the optical focus of the lens using the
remote lens control.
5. Zoom out to the maximum wide angle setting. If the picture is no longer in focus, readjust the
backfocus thumbwheel.
6. Repeat steps 4~6 until the image remains sharp through the entire zoom range.
This completes the adjustment.
13. CAMERA MOUNTING HOLE
There are two mounting holes provided, one each on the top and bottom of the camera.
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XX181-10-02 Rev 110 VN-856V5 IP Camera
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