Sony HDW-F900 Operation Manual page 188

5
Point the camera at the chart by turning the focus ring and focus on
it.
6
Set the zoom ring to wide angle.
7
Turn the Ff ring until the chart is in focus, being careful not to
disturb the focus ring.
8
Repeat steps 4 to 7 until the chart stays in focus all the way from
wide angle to telephoto.
9
Tighten the Ff ring fixing screws.
Chapter 5 Setting Up the Camcorder
5
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