The Sony HXC - D70 studio camera features a B4 (2/3') mount. It comes with a ROM version of HXC - D70 - V1.18. Note that this camera does not include an external power supply or a battery. It's a great choice for professional studio use.

Using the Sony HXC - D70 studio camera is easy. First, connect your camera to the necessary equipment in your studio. Remember, you'll need to provide your own external power supply or battery since they're not included. When using it, keep it in a stable position to avoid blurry shots. For maintenance, clean the lens regularly with a soft, dry cloth. Also, make sure to keep the camera in a dust - free environment when not in use. And always update the ROM to the latest version, currently HXC - D70 - V1.18, for better performance.