Sorry for being so slow it getting back to you. If you would like to communicate with more detail, please send me an email at bruceyou@optusnet.com.au
I use a PTZ robotic camera because it can swing in any direction and also can focus on the pulpit at a distance of 50 meters or more.
The RS422 keyboard is able to direct the camera or cameras (up to 56 I believe) left, right, up, down, zoom in, zoom out etc.
I buy my equipment from KATO Industries in China. The very top of the range cameras are less than $2000. I can send you a price list for this equipment if you wish.
You will need to decide what quality of production you require – HDMI, HD-SDI, component or Composite. This will determine what cabling to use, plus the camera will require a power cable.
Hope this helps for now.
Regards
Bruce L Young