Color Bars from AF102 (PAL) - Black=0.3

Shooter

Veteran
I shot AF100 color bars and viewed them in the CS5 PPRO waveform monitor.

They read 0.3 to 0.9

I can understand the 0.9 (90% white) but why 0.3 for Black?

Can some one confirm this in PPRO and FCP please.
 
In the days of analogue tape formats bars were used to calibrate for each recorders level. So having that in mind you might have to adjust black level until 0 in playback to get it right. But I don't know if this is true for this camera.
 
FWIW I transcoded a shot of the bars from my AF102 to cineform avi, then had alook at it in AE CS3. The black is 0,0,0. The white varied 253-255.
 
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