Hopefully this will save someone my current grief. At places that don't have proper legalizers I use the safe color limit setting RGB to 16-235, check 422 safe and leave the composite levels at default lower clip 7.5ire. Well I made the mistake of using that effect from a 59.94 HD project in a "PAL"HD 50 project. the result was the luma clip actually clipped the level up to 100 millivoltss. I'm in for a big rerender now. I did some tests and in a 1080 59.94I HD project the default composite lwr setting is 7.5 ire and it doesn't clip up black level. In a PAL project applying the same effect and the default composite lwr 0 ire and that doesn't clip up black levels but setting it to 7.5 does. This all makes sense given there is no setup in PAL but I'm kinda surprised that importing the same smpte bars into each project why the 7.5 lwr clip doesn't have an effect in the 59.94I project as it does in the 50I project. I feel like I know why
this happens and I don't know why this happens all in the same thought. Why doesn't the 7.5 lwr clip in the 59.94 project clip the black level up like it does in the PAL project?
John Moore
Barking Trout Productions
Studio City, CA
bigfish@pacbell.net
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