When connected to an HDTV using HDMI in the studio, the D3X switches from its rear LCD to the connected TV. The resolution is excellent, and Live View including 100% focusing is transferred to the large screen. Unlike tethered shooting and testing on a PC, no software at all is needed and you can connect to any HDMI equipped TV, projector or monitor (or to a DVI interface with an adaptor). The image is very clear and stable, not like VGA video feed and the only accessory needed is a regular HDMI cable - the D3X, unlike some other DSLRs, uses a full size HDMI connector not a mini one. The camera still must be controlled from camera position, so it's ideal for working with a suitable monitor (a 22 inch like this one is about the optimum) close at hand.