Digital BW, The Print

>> Is there enough difference between the channels to provide useable
>> information at the print level?
>> 
>> As a thought, what if you modified the gamma of each channel slightly
>> to increase the difference between them?
> 
> You could put a Curves adjustment layer below your Channel Mixer adj. layer.
> If you mess with each channel's curves independent of one another, you can
> alter the characteristics of the channels before you mix them. Not sure I
> know if there is merit in doing this, but you COULD. ;-)


Sorry Martin, I see my reply to you was merely redundant to your question. I
think my answer was based upon remembering that in the past I've found it
useful to slap a "false" set of curves on an image to aid in creating an
alpha mask from one of the channels.
 
Todd