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