Setting the ALC lens selection switch

You can set the lens selection switch located on the side of the camera according to the lens type. When the mounted lens is an auto Iris lens of DC control type, set the switch to “DC.” When the mounted lens is an auto Iris lens of Video control type, set the switch to “VIDEO.”

Adjusting the back focus

The back focus of the camera is adjusted at the factory before delivery but some lenses can be out of focus depending on the lens type. In this case, you have to adjust the back focus. The following describes how to adjust

the back focus of the lenses.

In case of the lens with no zooming function

①After exposing the camera to an object with high resolution (like a dart-patterned image) at a distance of more than 10m, set the

lens focus ring to infinite (∞).

➁Adjust the Back Focus Control Bar until the object is of best quality.

➂ Fix the screw of the Back Focus Control Bar.

In case of the lens with zooming function

①After exposing the camera to an object with high resolution (like a dart-patterned image) at a distance of 3 to 5m, fully rotate the lens zoom to the TELE direction. Then adjust the lens focus ring

until the object is of best quality.

➁Fully rotate the lens zoom to the WIDE direction and adjust the

Back Focus Control Bar until the object is of best quality.

➂Repeat step 1 and 2 two or three times until the focuses of Zoom TELE and Zoom WIDE are clear enough.

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