7.5 IRE lower limit?

[hemophilia]

I can't seem to get my blacks below 7.5 IRE, nor my whites above 100. It's like Premiere is limiting them for me. If I turn my pedestal way down, it just crushes the blacks at 7.5; same thing on the top end at 100. But I don't have any video limiter or NTSC-safe options on (that I know of). I'm just wondering if anyone knows of some option that I'm missing somewhere that tells Premiere to only let blacks (whites) get as low as 7.5 (100).

I'm working in Premiere Pro. The purpose was to export uncompressed video for further processing, so I was trying to retain every last bit of data available, and only make it video legal as a final step farther down the road.

[IsraelHoudini]

those are the legal broadcast limits for ntsc. they refer to the broadcast signal wavelength of the colors. in the united states, canada and mexico (region 1) there are other signals that use the frequencies just above and below that. in japan on ntsc ire min can be almost 0. if youve ever noticed on a broadcast station that you get static when theres bright white titles on the screen...its because the signal of teh white is passing 100 and bleeding into the sound wavelengths. ntsc tvs in north america cant display anything beyound that capability anyway. in more pro editing/color correction programs you can master in wavelengths that exceed those parameters. but to broadcast it you would have to shrink the levels into the legal range. color bars display 7.5 ire black in one of the test fields.

[IsraelHoudini]

i see that youre in brazil, so you should try working in a region native copy of the program. might help if the region legal limits are dif, or try to tell it that your in japan ;)

[scharky]

There is still no reason for premiere to be limiting your video for you. There should be an effect that you can add that will limit your video, but natively you should be able to use whatever IRE your camera can capture. NOt everything is going to be brodcast. It could be on a DVD, only displayed on a computer monitor, or even going out to film. In those instances you don't want to reduce your IRE so that you have the most information possible.