JVC TK-WD31 manual With a fixed-focus lens, With a zoom lens

Shoot a comparatively dark scene with thin lines.

• With a fixed-focus lens

If the focus can not be adjusted correctly by rotating the lens focus ring, adjust the back focus as follows.

1. Loosen the back focus locking screws by turning it counterclock- wise () with a Phillips screwdriver. (2 locations)

2. Shoot a pattern closely.

3. Turn the lens focus ring to ∞.

4. Turn the back focus adjustment ring to focus at the best point.

5. Tighten the back focus locking screws by turning it clockwise (). (2 locations)

• With a zoom lens

If the image is out of focus when zooming (telephoto wide-angle), ad- just the camera as follows:

1. Loosen the back focus locking screws by turning it counterclock- wise () with a Phillips screwdriver. (2 locations)

2.

3. Set the lens to the maximum telephoto position, and adjust the lens focus.

4. Set the lens to the maximum wide-angle position, and turn the back focus ring to adjust the focus.

(Repeat steps 3. and 4. two or three times.)

5. Tighten the back focus locking screws by turning it clockwise (). (2 locations)

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