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-   -   sharpness ghosting? (http://www.videokarma.org/showthread.php?t=252305)

zenith2134 10-05-2011 09:31 PM

sharpness ghosting?
 
Hi this is probably a silly question but, only on electronically tuned sets have I noticed the following fault: With sharpness(or peaking) at halfway and a normal strong signal, these sets display text and finely-edged objects with a slight ghost as if the tuner is out of align. but it never is. Only at about 25% sharpn. will the text look normal...otherwise pix seems unaffected. Anyone?

DaveWM 10-06-2011 08:19 AM

I seem to recall reading some where that the sharpness setting lets you compensate for poor pics, so if you have a normal pic, then you can over do it (too much gain) and end up with a ring. Bottom line is if you can adj to a good pic then its working.

ctc17 10-06-2011 10:53 AM

The content today is to high res and high contrast for these old sets. Most of my sets have issues like that, even the new old stock ones.

zenith2134 10-06-2011 03:33 PM

I see. Certainly makes sense. I once saw an article equating the sharpness level to the treble level on an audio preamp..the higher the sharpn, the higher the 'treble' or , more appropriately, the higher the video hi-frequency content.


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