Best Guide for Buying HDV Digital Camera for Filmmaking

I am finally buying HDV camera for filmmaking. I am choosing the models and my company will be paying for it. Since I am not a pro, I need answers for the following questions. Please advise me and correct me if I am wrong:

I have short listed JVC GY HD 251. Can you tell me:

1) What is the difference between multicamera and standalone mode?

2) Is JVC GY-HD251 better than JVC HD 110/HD 100?

3) What is the difference between Digital Betacam, DVCAM Camcorders and Production Cameras?

4) Which digital betacam is better DVW 970P or D790 WS?

What is the difference between multicamera mode and standalone mode?

Certain applications - events, for example - require multiple cameras positioned for various and obvious reasons. In this case, the control is generally with the Director, who sits at the centralized mixing station. For this, there is a control on the cameras that enables synchronizing all cameras with one signal, which may originate from any one camera in the loop. Yes, the 251 is a multicam model, and also a studio model, with live SD out for TV telecast (news, live feed, etc.) Check out if you really need it.

2) Is JVC GY-HD251 better than JVC HD 110/HD 100?

The only differences: 251 has 14bit processing, while the 100 series has 12 bit processing. However, the output is always the same, as the above is valid only in live HDV capture. 251 has SDI out, while 100 does not have it, as the 100 is a field camera, while the 250 series is for studios. Then, of course the multicam is supported on the 251 while it is not there on the 100.

Source

Apart from this, all the optics and electronics are the same. If you are buying camera on bill, from a certified source wherever you are, JVC will even upgrade your camera with the latest software as and when they are available. For instance, my friend owns two JVC 101s but the software in them has been upgraded from the 2x version to 4x, which is the same software that is used in the 251 series. The decision is hence with you, especially when someone else is going to pay for it.

3) What is the difference between Digital Betacam, DVCAM Camcorders and Production Cameras?

The resolution of course, not worth the discussion, as HDV HD is a far superior quality than others.

4) Which diital betacam is better DVW 970P or D 790WS?

No idea, as I have not used them.

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