Quote:
Originally Posted by jr_tech
Just for grins, I took a shot of a similar pattern on my 32" Sony HDTV (attached). The blue appears to be *way* different... Is the CRT TV more correct?
Note: The "barrel" distortion is from the camera wide angle lens... the actual display is quite rectangular.
jr
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This is a comparison that should not be attempted. The NTSC set will never be exactly correct on the filter test with color bars.
The NTSC set will have excess R-Y drive compared to B-Y and G-Y in order to get the correct hue spread along the red-yellow-green axis. Different manufacturers fiddled with this to different degrees. The picture through the red filter shows the excess R-Y gian, but how much you can't tell exactly because the cyan bar is driven below cutoff. The pictures through the green and blue filters also show that the G-Y and B-Y drives are a bit low. Inx64 might increase the color level a bit, if he can stand the brightness of reds as a result. (The magenta bar is not completely cut off in the green filter pic and the blue bar is not as bright as the white bar in the blue filter pic.)
Regarding the HD set, how it should look for analog input or even SD DVD is up for grabs, since there was no iron-clad color standard for NTSC or SD digital, which may have originated as NTSC colorimetry.
The HD should look essentially perfect in all three filters if fed with a rec 709 HD color bar signal.
06-17-2012, 04:38 PM
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