SVG Tech Insight: Operational Innovations in 4K UHD Broadcast Television

Challenge of Focus Control for Live Sports Coverage
Especially on live broadcasts of major events where production directors choreograph dozens of camera feeds, the operational pressures can be considerable. The individual camera operator can, at any moment, be simultaneously actuating one or all of the four primary lens-camera operations of image framing (zoom demand), focus on chosen subject (focus demand), operational panning and tilting, and focus tracking on moving subjects.

Source: SVG Tech Insight: Operational Innovations in 4K UHD Broadcast Television