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blackmagic atem 1 m/e production switcher - Imagecraft

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70<br />

Operating Your ATEM Switcher<br />

Luma Key Settings<br />

Performing an Upstream Luma/Linear Key<br />

Since luma and linear keys use the same parameters, they are set up on the software control panel and<br />

broadcast panel using a common menu, called the luma key menu. What defines the key as being either<br />

luma or linear is in the selection of fill and key sources. In a luma key, fill and key sources are the same.<br />

For a linear key, fill and key sources are different.<br />

To set up a luma/linear key on upstream keyer 1 on the software control panel:<br />

Step 1. Expand the upstream key 1 M/E 1 palette and select luma from the key types bar.<br />

Step 2. Select the fill source and key source.<br />

If performing a luma key, select the same source for both fill and key.<br />

Adjust the key parameters to refine the key. For a description of luma key parameters, refer to the table<br />

below.<br />

To set up a luma/linear key on upstream keyer 1 on the broadcast panel:<br />

Step 1. Press the KEY 1 button in the transition control block to enable the keyer on the preview output.<br />

The system control will dynamically navigate to the KEY 1 menu. You can manually navigate to the<br />

KEY 1 menu by pressing HOME > EFFECTS KEYS > KEY 1.<br />

Step 2. Select the LUMA KEY menu button.<br />

Step 3. The destination display will say key1fill. Select the fill source on the select bus.<br />

Step 4. Hold down the CUT/FILL button so the destination display says key1 cut and select the key<br />

source.<br />

If performing a luma key, select the same source for both fill and key.<br />

Step 5. Adjust the clip and gain controls to refine the key or press the pre-mult button for pre-multipled<br />

keys. The clip and gain controls are not available for pre-multipled keys.

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