Let's say my grays are all perfect from a color point of view across the entire spectrum, meaning they're all D65. That doesn't mean that my projector is necessarily calibrated correctly, right? I mean, there still has to be an appropriate amount of brightness for all the various IRE inputs, right?
Here's my question. Let's say I have a light meter and Avia. I put up 0% IRE, 10% IRE, 20% IRE, ... 100% IRE, and for each screen I measure the light output on my light meter.
What would be perfect results? Is it supposed to be linear, i.e. the light at 10% IRE minus the light at 0% IRE should equal 20 IRE - 10 IRE which should equal 30 IRE - 20 IRE etc.? Or should it be some kind of exponential function, i.e. a*(color ^ gamma) + b?
Thanks in advance!
Mike
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Join the NYC-area HT club! Send me e-mail!
Here's my question. Let's say I have a light meter and Avia. I put up 0% IRE, 10% IRE, 20% IRE, ... 100% IRE, and for each screen I measure the light output on my light meter.
What would be perfect results? Is it supposed to be linear, i.e. the light at 10% IRE minus the light at 0% IRE should equal 20 IRE - 10 IRE which should equal 30 IRE - 20 IRE etc.? Or should it be some kind of exponential function, i.e. a*(color ^ gamma) + b?
Thanks in advance!
Mike
------------------
Join the NYC-area HT club! Send me e-mail!