early Network color was not equal

[Pete Deksnis]

Originally Posted by yagosaga

What would it look on your CT-100?

Hi Eckhard,

Not sure what the exercise will demonstrate. But there are two things it would look like that depend on the hardware involved; indulge me and check me to see that we're on the same page:

[1] Take a 'perfect' or reference color bar (as you have provided) and reproduce it on an sRGB TV or monitor driven via component or DVI or HDMI, and you get a 'perfect' (okay, really, really good) color bar image. I've done that and photographed the sRGB-phosphors screen with an sRGB digital camera and generated an sRGB color space jpg. It can be seen here. link.

[2] That same reference color bar signal turned into an NTSC signal by a DVD player [and either modulated or directly introduced into the first video amplifier (which is the way I do it)] is going to be corrupted or at least constrained by the NTSC system and the DVD-player version of NTSC. I think I would see what I see now since the color bar pattern on my DVD is essentially reference quality before it takes the long NTSC route to my 15GP22 screen, and as I have noted above, the brightness/contrast range is already adjusted correctly as shown on a screen shot earlier.

There is another factor not yet mentioned -- that of high-voltage. Your CTC5 has what, 25 kV to play with and the regulator is far better than the 6BD4 circuit used in the CT-100. (Even, by comparison, the Westinghouse H850CK15 has, by observation, a far more stable high-voltage supply.) Not an excuse, but blooming by the Bloomington set is a salient factor in the available brightness/contrast range issue.

Pete