JVC GR-D90 GR-D70 Iris Lock, White Balance Adjustment, Manual White Balance Operation

Models: GR-D90 GR-D70

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Iris Lock

Iris Lock

Use this function in the following situations:

When shooting a moving subject.

When the distance to the subject changes (so its size in the LCD monitor or the viewfinder changes), such as when the subject is backing away.

When shooting on a reflective natural background such as at the beach or when skiing.

When shooting objects under a spotlight.

When zooming.

When the subject is close, keep the iris locked. Even when the subject moves away from you, the image will not darken or brighten.

Before the following steps, perform steps 1 through 4 of “Exposure Control” ( pg. 26).

5 Adjust zoom so that the subject fills the LCD monitor or the viewfinder, then press and hold the MENU/ VOLUME wheel % for over 2 seconds. The exposure control indicator ) and “ To Return To Automatic Iris Control . . .w appear. Press the MENU/VOLUME wheel % in. “ To Lock The Exposure Control And The Iris . . .w changes to “ Iris ” and the iris is locked.

To Return To Automatic Iris Control . . .

..... rotate the MENU/VOLUME wheel % to display

“AUTO” then press it in step 4. The exposure control indicator ) and “ White Balance Adjustmentw disappear. Or, set the Power Switch u to “ ”.

To Lock The Exposure Control And The Iris . . .

..... after step 4 of “Exposure Control” ( pg. 26),

adjust the exposure rotating the MENU/VOLUME wheel %. Then lock the iris in step 5 of “Iris Lock”. For automatic locking, rotate the MENU/VOLUME wheel % to select “AUTO”, then press it in step 4.

The iris becomes automatic after about 2 seconds.

Iris

Like the pupil of the human eye, it contracts in well-lit environments to keep too much light from entering, and dilates in dim environments to allow in more light.

White Balance Adjustment

A term that refers to the correctness of colour reproduction under various lighting. If the white balance is correct, all other colours will be accurately repro- duced.

The white balance is usually adjusted automatically. However, more advanced camcorder operators control this function manually to achieve a more professional colour/tint reproduction.

1 Set the Power Switch u to “ To Return To Automatic White Balance . . . ” while pressing down the Lock Button y located on the switch. Open the LCD monitor fully or pull out the viewfinder fully.

2 Press the MENU/VOLUME wheel % in. The Menu Screen appears.

3 Rotate the MENU/VOLUME wheel % to select

Manual White Balance Operation (W.BALANCE)”, then press it.

4 Rotate the MENU/VOLUME wheel % to select the desired mode.

AUTO”: White balance is adjusted automatically (factory preset).

Manual background MWB: White balance is set manually.

Manual background FINE: Outdoors on a sunny day.

Manual background CLOUD: Outdoors on a cloudy day.

Manual background HALOGEN: A video light or similar type of lighting is used.

5 Press the MENU/VOLUME wheel % in. Selection is complete. Press the MENU/VOLUME wheel % in again. The Menu Screen closes and the selected mode indicator except “AUTO” appears.

To Return To Automatic White Balance . . .

..... select “AUTO” in step 4. Or, set the Power Switch

uto “ Manual background ”.

NOTE:

White balance cannot be used when Sepia or Monotone ( pg. 23) is activated.

Manual White Balance Operation

Perform Manual White Balance when shooting under various types of lighting.

1 Follow steps 1 through 4 of the white balance

adjustment, and select “ Manual background MWB”.

2 Hold a sheet of plain white paper in front of the lens. Adjust zoom or position yourself so that the white paper fills the screen.

3 Press the MENU/VOLUME wheel % in until Manual background begins blinking rapidly.

When the setting is completed, Manual background resumes normal blinking.

4 Press the MENU/VOLUME wheel % in twice. The Menu Screen closes and the Manual White Balance indicator Manual background ( is displayed.

NOTES:

In step 2, it may be difficult to focus on the white paper. In such a case, adjust focus manually ( pg. 26).

A subject can be shot under various types of lighting conditions indoors (natural, flourescent, candlelight, etc.). Because the colour temperature is different depending on the light source, the subject tint will differ depending on the white balance settings. Use this function for a more natural result.

Once you adjust white balance manually, the setting is retained even if the power is turned off or the battery removed.

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JVC GR-D90 GR-D70 Iris Lock, White Balance Adjustment, Manual White Balance Operation, To Return To Automatic Iris Control