To adjust the horizontal position or key source width for a luminance key, linear key, or chroma key: Press [Key Position], turning it on, and set the parameters.

Knob

Parameter

Adjustment

Setting values

 

 

 

 

1

H Phase

Key horizontal position

−4.00 to +4.00

 

 

 

 

2

Left

Key left edge position

−4.00 to +4.00

 

 

 

 

3

Right

Key right edge position

−4.00 to +4.00

 

 

 

 

To set the key priority: Press [Key Priority] or select VF7 ‘Misc’ and HF3 ‘Key Priority’ to access the Key Priority menu.

For details, see “Setting the Key Priority by a Menu Operation” (page 229).

Chroma Key Composition

Composing an image by chroma keying

There are two types of composition for chroma keying: normal mix, and additive mix.

To carry out chroma key composition, use the following procedure.

For an overview of the chroma key composition, see page 47.

1 In the M/E-1>Key1 menu, select HF1 ‘Type.’ 2 Select [Chroma] in the <Key Type> group.

It becomes possible to adjust the key density (see page 264).

3 Select [Chroma Adjust].

The Chroma Adjust menu appears.

4 Carry out auto chroma key adjustments.

Also carry out manual adjustments if necessary to obtain an optimum chroma key image.

For the adjustment procedures, see page 266.

5 In the <Mix Mode> group, select [Normal Mix] or [Additive Mix] depending on the desired type of chroma key composition.

Keys 4 Chapter

Key Setting Operations Using Menus 265