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video image steadiness


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#1 LeighWanstead

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Posted 01 July 2004 - 12:17 AM

Hello everyone,

I did a google search and can't find that topic.

May I ask how you say that video is rocket solid steady while the video camera is moving i.e. steadicam? Is there any scientific way to measure it?

I look forward to hearing from you.

TIA
Leigh
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#2 Eric Fletcher S.O.C.

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Posted 01 July 2004 - 01:34 AM

I did a google search and can't find that topic.

May I ask how you say that video is rocket solid steady while the video camera is moving i.e. steadicam? Is there any scientific way to measure it?

Video images do not have "Gate weave" like a film camera/telecine or projector can have.

The Video Target is fixed and and does not move in relation to the lens. Therefore it is "rock Steady" (Not Rocket steady)

I think that answers your question.


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#3 LeighWanstead

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Posted 01 July 2004 - 04:09 AM

Dear Eric,

Thanks for the quick reply. Sorry to use the wrong word rocket in my previous post.

But you still do not answer my question. How to technically judge two video clips shoot by two different steadicam operater, which video clip is better if for the same content? What I want is a technical way to make a judgement.

Another way to say, if got two clips, one shoot by someone only has one year experience, another shoot by a guru with 15 years experience. The rig they used to shoot is different too. One might be worth $100,000, another might be a $2,000 rig. Both video clips present to you without the cameraman name tag on, how you decide.

Third way to say, you are a producer who want to hire a steadicameraman for your new production and you got two candidates. Who will you select based on their demo tape?

Fourth way to say, you shoot a video eight years ago, and you shoot again for the same action today, which video is more steady?

Regards
Leigh
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#4 Alec Jarnagin SOC

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Posted 01 July 2004 - 04:55 AM

Leigh,

Who is better - Caravaggio or DaVinci? What is better, a water color or a an oil painting?

Technical? Its not the gear; its the hands (and mind) of the operator it is in. Better gear makes for more reliable gear and allows us to concentrate on our jobs more. Rather simple. As for who to hire, no number system is going to come up with the personality of the operator, etc. This is very important too.

Bad Steadicam can be identified by lack of horizon control, bad lock-offs (how well we keep it still is as important as how well we move it). The difference between good Steadicam and great Steadicam is often the frames between the frames - both shots might get you from place A to B, but the better one is full of interesting frames in-between.
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