Selecting The Aspect Ratio Of Sd Videos; Adjusting The Iris - JVC GY-HM790CHU Instructions Manual

When [System Definition] is set to SD (DV)
When [System Definition] is set to SD (DV) , the video
format is fixed as follows for the different models.
Record Format
Camera Resolution
File Format
Horizontal×Line
QuickTime/ 720 x 480(U model) 60i
AVI
720 x 576(E model) 50i

Selecting the Aspect Ratio of SD Videos

Select an aspect ratio for the images.
The available options vary as follows depending on the
[System Definition] setting.
● HD (MPEG2) :Fixed at 16:9
● SD (DV)
: 16:9, 4:3
Setting the Record Format Menu
1
Display the [Main Menu] B [Record Format] menu.
2
Set each of the items.
3
After setting is complete for all items, select [SET] at
the bottom of the screen, and press the Set button (
● The record format is switched.
● A Please Wait message appears on the screen during
switching.
Note :
● [System Definition] is fixed at SD (DV) in the AUX mode.
Only [File Format] and [Aspect Ratio] can be set. (U model)
Remarks
Frame & Bit Rate
DV
compatible
DV
compatible
R ).
3

Adjusting the Iris

You can adjust the aperture of the lens iris manually or
automatically according to the brightness of the object.
Manual Iris (Manual Adjustment) Mode
Set the [IRIS] switch on the lens to M to enter Manual Iris
mode.
Turn the iris ring on the lens to adjust the iris manually.
Memo :
● Even during Manual Iris mode, the camera recorder
enters forced Auto Iris mode while the [IRIS AUTO] button
is pressed.
Auto Iris (Automatic Adjustment) Mode
Set the [IRIS] switch on the lens to A to enter Auto Iris
mode. The iris is automatically adjusted according to the
brightness of the object.
Memo :
● Even when the [IRIS] switch of the lens is set to M , it
switches automatically to Auto Iris mode when the [FULL
AUTO] switch is set to ON .
● When [Iris Control] in the [Camera Function] B
[FULL AUTO] menu is set to Off , you can adjust the iris
manually even if the [FULL AUTO] switch on the camera
recorder is set to ON . (A Page 81)
● You can use the cross-shaped button (
recorder to set the target level (brighter/darker) of the auto
iris. You can also use the menu to set the tracking
sensitivity of the auto iris. (A Page 78)
Iris Ring
[IRIS] Switch
H I ) on this camera