You’ll need a video switcher with camera, preview and program monitors. Thats five monitors for a three camera shoot. You’ll need a deck and a back-up deck to record to. You’ll also need a means of communicating to your camera operators on shots you need and to tell the camera operators when he’s “on” and not. You are now the director.
Recording live to a lap top with DV rack is also nice for keeping levels below 100 IRE and not blowing out your whites. It saves capturing later.
Most live venues do not light for cameras, so your operators need to constantly monitor and adjust their irises. When they pull out, the need to open their irises. When they zoom in, they need to close the iris down, all so that the viewer does not see it. This is quite a skill, made more difficult by pro sumer cameras that have amateur lenses (no iris ring on the lens). Auto iris goes nuts when light levels drop. It is a distraction to the viewer and is not a professional product.
There are many commercial equipment houses that can advise you on this as well as different levels of equipment. If you only do it once in a while, you may want to check into renting a package. With the rapid changing of technology, that may be a good way to go. Imagine investing thousands of dollars in SD equipment only to have to replace it with HD equipment a few years later.
You need to do your homework, but in any case, it gets really expensive when you do a live to tape mix of an event with multi-cameras.
Best to hook up with someone who already does this and tag along for some experience. The gear can start out at under $10,000 (for the video mixer, monitors and decks and quickly go up from there. Mistakes, however, are expensive.
Next comes audio. Most venue PA systems cannot be depended on for a quite audio feed, but its worth checking it out. The PA volumes, however, may not be suitable for your video levels. Even if you can get a feed from the PA board, you’ll need to monitor your levels so that you don’t distort your sound or have it so soft that its not usable.
You’ll need your own mics, an audio mixer with personnel to mix the feeds, to feed into your decks. Thats a whole other subject. If this is not possible, take an audio feed off of the PA board. Do not use your camera mics, or your audience will be louder than the talent on the stage.
Again, best to start out with someone who is already a pro at this; watch and learn.
Good luck,
P. J. in Hollywood.