Digital BW, The Print

Well yes but I was surprised that there was a profile assignment going on
when you simply uncheck the a and b channels for view.  In the least I would
expect a profile conversion.


> From: pavvelc <pawel_czapiewski@...>

> 
> L will always be lighter than grayscale. LUTs are set up this way. You
> can check with a color picker. In a space with gamma 2.2 midtone
> 128,128,128 translates into L 54 while in gamma 1.8 into L 61 if i
> remember correctly. So using L for masks or sharpening doesn't give
> exactly the same results as using grayscale or reverting sharpening to
> luminosity in RGB. Regards,
> 
> Pawel