Blackmagicdesign ATEM - Performing a Downstream Luma;Linear Key

Keying using ATEM Switchers
Performing a Downstream Luma/Linear Key
To set up a luma/linear key on downstream keyer 1 on ATEM Television Studio HD:
1 Press the 'menu' button to open the LCD settings.
2 In the downstream key 1 settings, select the 'luma' key type.
3 Select the fill source.
For a luma key, always make sure the same source is selected for both fill and key.
Setting up a Luma/Linear key on Upstream Keyer 1 using ATEM External Hardware
Panels
ATEM 1 M/E Advanced Panel:
1 Press the ‘key 1’ button to enable the keyer on the preview output. This
automatically selects the keyers menu on the system control LCD, but you can
alsopress the ‘keyers’ button to enter the menu directly.
2 Select the desired M/E keyer by pressing the corresponding soft button along the
top edge of the LCD menu.
3 Use the control knob underneath the ‘key type’ indicator to choose the ‘luma’ key.
4 Rotate the ‘fill source’ and ‘key source’ control knobs to choose a fill and key
source. You can also press the corresponding buttons on the source select bus to
select the fill and key source.
5 Once you have chosen a key type, fill and source, press the ‘right’ arrow button
to scroll through to the next menu item and use the control knobs to adjust key
parameters such as mask, gain, clip, enable or disable pre multiplied key, etc.
ATEM Broadcast Panel:
1 Press the KEY 1 button in the transition control block to enable the keyer on the
preview output. The system control will dynamically navigate to the KEY 1 menu.
You can manually navigate to the KEY 1 menu by pressing HOME > EFFECTS
KEYS > KEY 1.
2 Select the LUMA KEY menu button.
3 The destination display on the ATEM 1 M/E Broadcast Panel will say key1fill. Select
the fill source on the select bus.
4 On the ATEM 2 M/E Broadcast Panel, hold down the KEY1/CUT button and select
the key source. On the ATEM 1 M/E Broadcast Panel, hold down the CUT/FILL
button so the destination display says key1 cut and select the key source.
5 If performing a luma key, select the same source for both fill and key.
6 5 Adjust the clip and gain controls to refine the key or select ‘Pre Multiplied Key’ for
pre-multipled keys. The clip and gain are set automatically for pre-multiplied keys.
TIP If you select a media player for the fill source, the media player key source
will automatically be selected for the key. For example, if you select media
player 1 for the fill source, media player 2 key will automatically be selected.
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