Iris
The ‘Iris’ indicator displays your current lens aperture. By tapping this indicator, you can change
the aperture of compatible lenses and configure iris based auto exposure modes.
Your URSA Broadcast's iris indicator. Tap this to access iris settings
Tapping the ‘iris’ indicator once brings up the iris menu along the bottom of your
URSA Broadcast touchscreen. You’ll see your current lens aperture at the far left of this menu.
You can change the aperture by tapping the left and right arrows on either side of the current
aperture, or moving the slider left or right.
While in the 'iris' menu, tap the arrows on either side of the iris
indicator or use the slider to adjust iris settings
Tapping the ‘auto exposure’ switch icon at the far right of the iris menu opens the iris auto
exposure menu.
This gives you the following auto exposure options.
Iris
This setting automatically adjusts the aperture to maintain a constant exposure, while
keeping shutter speed constant. This will keep motion blur constant, but may affect
your depth of field.
Iris + Shutter
Maintains the correct exposure levels by adjusting the aperture, then the shutter speed.
If the maximum or minimum available aperture is reached and exposure still cannot be
maintained, URSA Broadcast will begin adjusting the shutter speed to keep
exposure constant.
S Iris
Maintains the correct exposure levels by adjusting the shutter, then the aperture. If the
maximum or minimum available shutter speed is reached and exposure still cannot be
maintained, URSA Broadcast will begin adjusting the aperture to keep
exposure constant.
While in the iris menu, tap 'auto exposure' to access
iris based auto exposure modes
NOTE
To adjust your iris from the LCD touchscreen, your URSA Broadcast must
be fitted with a lens that supports changing aperture via the camera. If you are using a
B4 or PL lens connected via the broadcast 12 pin connector, make sure that the lens iris
switch on the handgrip is set to ‘A’ or ‘auto.’
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Touchscreen Controls
