User's Manual
URSA Broadcast's shutter indicator. Tap this to access shutter settings
Shutter speed defines the level of motion blur in your video, and can be used to compensate
for varying light conditions. The shutter speed setting for natural motion blur, and the settings
available, depend on the frame rate you are using. For example, when shooting at 30p, a 1/60
of a second shutter speed is is the equivalent of a 180 degree shutter angle, a very common
setting for film projects. However if you are shooting at 25p, you will need to set the shutter to
1/50 for the same look.
For natural motion blur you can calculate the shutter speed by doubling your frame rate. So at
30p, set your shutter speed to 1/60 of a second for natural motion blur.
If you need more light on the sensor, you can set the shutter at the slowest setting
corresponding with your frame rate. For example, 1/25 for 25p, or 1/30 for 30p. At the slowest
shutter speed, your motion blur will appear slightly exaggerated.
If you want to reduce the motion blur so action appears sharper and more defined, set the
shutter to a faster speed, such as 1/120 of a second for 30p, or 1/100 of a second for 25p. If you
are familiar with shutter angles, this equates to a shutter angle of 90 degrees.
It's worth experimenting with different shutter speeds to see how this setting can provide
different levels of motion blur to your image.
Tapping the ‘shutter’ indicator brings up the shutter speed menu along the bottom of your
URSABroadcast's touch screen. If you have auto exposure set to ‘off,’ this screen will show you
your currently selected shutter speed, as well as the available flicker free shutter speeds, based
on the mains power frequency you have selected in your URSA Broadcast's 'setup' menu.
Formore information, see the 'setup settings' section in this manual.
To select one of the flicker free shutter speeds, simply tap it or use the arrows on either side of
the current shutter speed indicator to cycle through available speeds.
Your URSA Broadcast will suggest flicker free shutter speeds based on
the mains power frequency you choose in the 'setup' menu
NOTE When shooting under lights, your shutter speed can affect the visibility offlicker.
Your URSA Broadcast will automatically calculate flicker free shutter speeds for your
current frame rate. These speeds are effected by mains power frequency in your region.
You can set your local power frequency to 50Hzor60Hz in your URSA Broadcast's
setup menu. See the ‘setup settings’ section in thismanual for more information.
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NOTE The characteristics of different light sources may still cause flicker even when
using flicker free shutter speeds. We recommend always performing a test shoot when
not using continuous lights.
58Touchscreen Controls