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video out to ENG viewfinder


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#1 Jan Doggen

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Posted 21 December 2005 - 04:25 PM

Hi,

I am looking for a way to connect an ENG viewfinder to the video-out of a vx2000/pd150 or dvx100 camcorder. (I know there is an adapterbox for the canon xl1 but i am not interested in that.)
I wonder if anyone can get me clued up about this.
If I find the pinout of a viewfinder-connector, will getting 12v into it (i know most viewfinders need 12v) and connecting the video-out to the right pins actually work? Or is some kind of signal conversion needed?

thanks for any info on this...

JD
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#2 Phil Rhodes

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Posted 21 December 2005 - 04:39 PM

Hi,

Yes, it's usually just power and video - the other pins are things like the tally light and any internal warning lights. There may be other video-related signals, such as peaking or graphics overlays, but I've never seen one that wouldn't just take a normal video input and display it.

You should try to feed the viewfinder from the Y component of a Y/C output, which will avoid your seeing composite colour encoding artifacts all over it.

Phil
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#3 Jan Doggen

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Posted 22 December 2005 - 10:27 AM

You should try to feed the viewfinder from the Y component of a Y/C output, which will avoid your seeing composite colour encoding artifacts all over it.

Phil


S-Video outputs are Y/C, right?
You know, I hadn't even thought about using the s-video output...
Might there be problems with the levels and/or impedance of an s-video output?

I guess I should just get a second-hand viewfinder and try to hook it up.

Jan
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#4 Phil Rhodes

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Posted 22 December 2005 - 02:27 PM

Hi,

> S-Video outputs are Y/C, right?

Yes.

> You know, I hadn't even thought about using the s-video output...

Well, it's probably the only way you have of getting a proper monochrome feed. You could use the composite output, but you'd see crawling dots all over it.

> Might there be problems with the levels and/or impedance of an s-video output?

Not in my experience.

Phil
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