Sony Advanced Mix Effects Board for XVS-8000/9000
Key freeze is a new feature in 4K to store a still image in a 4K full keyer. With the optional mix effect board XKS-8215 the number of full keyers can be increased up to 20.
Sub Keyer is an additional another keyer which allows linear and luminance Keying for 4K content. In new Mix Effect board XKS-8215, all keyers will be full keyer.