Video monitors

The machines we love to hate

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Joe Delaronde
Posts: 1037
Joined: 4 Aug 1998 11:00 pm
Location: Selkirk, Manitoba, Canada

Video monitors

Post by Joe Delaronde »

I have been transfering photos to VHS format.
I zoom in on the pic so the white outer edges are not visible on my monitor. Also I make sure the pic is level and straight. However, when I view the taped results through our large living room TV, the pic edges are visible and appeard cock-eyed. Has this anything to do the ratio aspect of the tv screen or more lines on a bigger screen?????
Thanks .....Joe
Bill Crook
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Joined: 4 Aug 1998 11:00 pm
Location: Goodlettsville, TN , Spending my kid's inheritance
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Post by Bill Crook »

Reading your post, I think that the cure is to zoom in onto the photo just a bit more...

While it isn't a defect of your cam-corder or your T.V., the vertical and horzonal limits of the view-finder in general, isn't exactly what the camera pickup (CCD) is seeing. This could be due to alignment differences in the camera and even the T.V. This effect is experienced by most of us when we attempt to use even a regular camera, (unless it's a SLR kind) due to the offset of the viewer-finder and the photo lens itself. The little instamatic cameras are most famous for this effect.

Again, just zoom in a bit more and that should cure the problem.
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Jack Stoner
Posts: 22136
Joined: 3 Dec 1999 1:01 am
Location: Kansas City, MO

Post by Jack Stoner »

I'm moving this to computers where it should get more "action".
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Blake Hawkins
Posts: 1848
Joined: 4 Aug 1998 11:00 pm
Location: Florida

Post by Blake Hawkins »

Joe, your problem is that the monitor you are using with your camera is "overscanned" so it does not show all the picture that the camera is getting.
Your large screen is more accurate so you see the edges.
The remedy is to "underscan" the monitor you are using with the camera.
This can be simply done by adjusting the horizontal and vertical size controls until you have a slight dead area on the screen all around the picture.
If you visit a TV station or a post production house, you'll see that the monitors are adjusted this way.
The reason most home TV sets are overscanned by about 5% is to compensate for voltage fluctuations which affect the size of the picture and also so that the picture appears larger.
Professional tv monitors will have an underscan switch so you can easily change from one mode to the other.
Blake
Joe Delaronde
Posts: 1037
Joined: 4 Aug 1998 11:00 pm
Location: Selkirk, Manitoba, Canada

Post by Joe Delaronde »

It works!! Thanks......Joe
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